Ford Explorer: Suspension System - General Information / Diagnosis and Testing - Suspension System

Ford Explorer 2020-2021 Service Manual / Chassis / Suspension / Suspension System - General Information / Diagnosis and Testing - Suspension System

Preliminary Inspection

  1. Road test the vehicle.
    • If any suspension alignment or ride height concerns are present, REFER to Symptom Chart: Suspension System.
    • Verify the customer concern by carrying out a road test on a smooth road. If any vibrations are present, REFER to Symptom Chart: NVH.
  1. Inspect the tires.
    • Check the tire pressures with all normal loads in the vehicle and the tires cold. REFER to the VC label.
    • Verify that all tires are sized to specification. REFER to the VC label.
    • Inspect the tires for incorrect wear and damage. INSTALL new tires as necessary.
  1. Inspect the chassis and underbody.
    • Remove any excessive accumulation of mud, dirt or road deposits from the chassis and underbody.
    • Front or rear suspension components.
    • Suspension fastener(s).
    • Incorrect spring usage Spring(s).
    • Shock absorber(s).
    • Strut(s).
    • Suspension bushing(s).
    • Steering system components.
    • Wheel bearing and wheel hub(s).
  1. Inspect for aftermarket equipment.
    • Check for aftermarket changes to the steering, suspension, and wheel and tire components (such as competition or heavy duty). The specifications shown in this manual do not apply to vehicles equipped with aftermarket equipment.

Symptom Chart: Suspension System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Possible Sources Actions
Vehicle drifts/pulls Refer to the Diagnostic Routine.   GO to Pinpoint Test A
Wander Overloaded, unevenly or incorrectly loaded vehicle NOTIFY the customer of incorrect vehicle loading.
Ball joint(s) CARRY OUT a ball joint inspection.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
INSTALL new control arm(s) as necessary. REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
Damaged or missing front strut mount bearing(s) INSTALL a new front strut mount bearing(s) as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Loose, worn or damaged front wheel bearing(s) INSPECT the wheel bearings. INSTALL new wheel bearings as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
Loose, worn or damaged suspension component(s) INSTALL new suspension component(s) as necessary.
Loose suspension fasteners

NOTE: Do not lubricate fasteners.

INSPECT the suspension fasteners. TIGHTEN to specifications.
Steering components INSPECT the steering system. INSTALL new components as necessary.
Wheel alignment (excessive total front toe out) ADJUST as necessary. Front Toe Adjustment
REFER to: Front Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
Rear Toe Adjustment REFER to: Rear Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
Front bottoming or riding low Worn, damaged or incorrect springs MEASURE the ride height.
REFER to: Ride Height Measurement (204-00 Suspension System - General Information, General Procedures).
INSTALL new springs as necessary. REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Worn front strut(s) INSTALL new struts as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Abnormal/incorrect tire wear Incorrect tire pressure (rapid center rib or inner and outer edge wear) ADJUST the tire pressure. REFER to VC label.
Incorrect tire rotation intervals REFER to Owners Literature for correct tire rotation intervals.
  • High-speed cornering
  • Excessive front or rear toe (inner or outer edge wear)
  • Excessive negative or positive camber (inner or outer edge wear)
 
REFER to: Wheels and Tires (204-04A Wheels and Tires, Diagnosis and Testing).
Front or rear suspension components INSPECT the front and rear suspension system. REPAIR or INSTALL new suspension components as necessary.
Sticky steering, poor returnability Damaged or worn front strut mount bearing(s) INSTALL a new front strut mount bearing(s) as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Binding ball joints CARRY OUT a ball joint inspection.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
INSTALL new control arm(s) as necessary. REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
Steering components INSPECT the steering system. INSTALL new components as necessary.
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
Steering wheel off-center Unequal front or rear toe setting (side-to-side) CHECK toe settings. ADJUST as necessary. Front Toe Adjustment
REFER to: Front Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
Rear Toe Adjustment REFER to: Rear Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
Steering components INSPECT the steering system. INSTALL new components as necessary.
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
Sway or roll Overloaded, unevenly or incorrectly loaded vehicle NOTIFY the customer of incorrect vehicle loading.
Loose wheel nut(s) TIGHTEN the wheel nut(s) to specification.
REFER to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
Strut(s) or shock absorber(s) INSTALL new struts or shock absorbers as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Shock Absorber (204-02 Rear Suspension, Removal and Installation).
Loose stabilizer bracket-to-frame bolts TIGHTEN the bolts to specification.
REFER to: Front Stabilizer Bar (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar (204-01B Front Suspension - AWD, Removal and Installation).
Worn stabilizer bar bushings or links INSTALL new stabilizer bar bushings or links as necessary.
REFER to: Front Stabilizer Bar (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Front Stabilizer Bar Link (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar Link (204-01B Front Suspension - AWD, Removal and Installation).
Damaged or broken stabilizer bar INSTALL a new stabilizer bar as necessary.
REFER to: Front Stabilizer Bar (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar (204-01B Front Suspension - AWD, Removal and Installation).
Worn spring(s) INSTALL new springs as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Shock Absorber (204-02 Rear Suspension, Removal and Installation).
Vehicle leans to one side Unevenly loaded or overloaded vehicle NOTIFY the customer of incorrect vehicle loading.
Front or rear suspension components INSPECT the front and rear suspension systems. INSTALL new suspension components as necessary.
Incorrect drive axle(s) ride height. Side-to-side lean out of specification MEASURE the ride height.
REFER to: Ride Height Measurement (204-00 Suspension System - General Information, General Procedures).
INSPECT the front and rear suspension systems. REPAIR or INSTALL new components as necessary.
  • If an obvious cause for an observed or reported condition is found, correct the cause (if possible) before proceeding to the next step.
  • If the fault is not visually evident, REFER to Symptom Chart or REFER to Symptom Chart: NVH.

Symptom Chart: NVH

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, Glossary of Terms
REFER to: Noise, Vibration and Harshness (NVH) (100-04 Noise, Vibration and Harshness, Diagnosis and Testing).
Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, REFER to: Noise, Vibration and Harshness (NVH) (100-04 Noise, Vibration and Harshness, Diagnosis and Testing).
for the next likely system and continue diagnosis.

Additional diagnostics may be necessary to further isolate the concern. An electronic listening tool such as Chassis Ear® may be used. Follow the tool manufacturer’s instructions and the Possible Sources found in the following NVH chart to determine the connection points.

Condition Possible Sources Actions
Front suspension noise — a squeak, creak or rattle noise. Occurs mostly over bumps or rough roads due to the suspension moving in an up/down motion. Strut top nut INSPECT and TIGHTEN to specification.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Jounce bumper INSPECT, LUBRICATE or INSTALL new components as necessary.
Stabilizer bar insulators and/or Stabilizer bar links INSPECT for out-of-position bushings, isolators or locating pins. INSTALL new components as necessary.
REFER to: Front Stabilizer Bar (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Front Stabilizer Bar Link (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar Link (204-01B Front Suspension - AWD, Removal and Installation).
Steering gear and/or Tie rod ends INSPECT the steering gear and tie rod ends. INSTALL new components as necessary.
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
Front brake caliper INSPECT the front brake caliper(s).
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing).
Lower control arm / ball joint CARRY OUT a ball joint inspection.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
INSTALL new control arm(s) as necessary. REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
Hub INSPECT hub(s). REPAIR or REPLACE as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
Exhaust system INSPECT the exhaust system.
REFER to: Exhaust System (309-00A Exhaust System - 2.3L EcoBoost (201kW/273PS), Diagnosis and Testing).
REFER to: Exhaust System (309-00B Exhaust System - 3.0L EcoBoost, Diagnosis and Testing).
REFER to: Exhaust System (309-00C Exhaust System - 3.3L Duratec-V6, Diagnosis and Testing).
REFER to: Exhaust System (309-00D Exhaust System - 3.3L Duratec-V6 – Hybrid (BP), Diagnosis and Testing).
Powertrain mounts INSPECT the powertrain mounts.
REFER to: Engine (303-01A Engine - 2.3L EcoBoost (201kW/273PS), Diagnosis and Testing).
REFER to: Engine (303-01B Engine - 3.0L EcoBoost, Diagnosis and Testing).
REFER to: Engine (303-01C Engine - 3.3L Duratec-V6, Diagnosis and Testing).
REFER to: Engine (303-01D Engine - 3.3L Duratec-V6 – Hybrid (BP), Diagnosis and Testing).
Subframe pin(s), welds or insulators INSPECT subframe. REPAIR or REPLACE as necessary.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
Rear suspension noise — a squeak, creak or rattle noise. Occurs mostly over bumps or rough roads due to the suspension moving in an up/down motion. Loose or damaged rear shock absorber(s) or shock absorber bushing(s) INSPECT the rear shock absorber(s) or shock absorber bushing(s). INSTALL new components as necessary.
REFER to: Rear Shock Absorber (204-02 Rear Suspension, Removal and Installation).
Damaged spring(s) or spring mount(s) INSPECT the rear spring(s) and spring mount(s). REPLACE damaged components as necessary.
REFER to: Spring (204-02 Rear Suspension, Removal and Installation).
Damaged or worn control arm bushing(s) INSPECT the rear control arm bushings. REPLACE damaged or worn components as necessary.
REFER to: Lower Arm (204-02 Rear Suspension, Removal and Installation).
REFER to: Upper Arm (204-02 Rear Suspension, Removal and Installation).
Worn or damaged stabilizer bar bushing(s) or link(s) INSPECT the stabilizer bar bushing(s) or link(s). REPLACE damaged or worn components as necessary.
REFER to: Rear Stabilizer Bar (204-02 Rear Suspension, Removal and Installation).
REFER to: Rear Stabilizer Bar Link (204-02 Rear Suspension, Removal and Installation).
Noise from front suspension when turning — crunch or ratcheting noise. Occurs as a result of the suspension twisting and flexing. Strut top nut INSPECT and TIGHTEN to specification.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
Worn or damaged front strut bearing(s) INSPECT for worn or damaged strut bearing. INSTALL new components as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Coil Spring INSPECT springs. REPLACE as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Strut brackets or seat(s) INSPECT strut brackets or seat(s). REPAIR as necessary.
Stabilizer bar INSPECT the stabilizer bar. REPAIR or REPLACE as necessary.
REFER to: Front Stabilizer Bar (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Stabilizer Bar (204-02 Rear Suspension, Removal and Installation).
Steering gear INSPECT the steering gear.
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
Tie rod ends INSPECT tie rod ends. INSTALL new components as necessary.
REFER to: Tie Rod End (211-02 Power Steering, Removal and Installation).
Hub INSPECT hub(s). REPAIR or REPLACE as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
Lower control arm / ball joint CARRY OUT a ball joint inspection.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
INSTALL new control arm(s) as necessary. REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Lower Arm (204-02 Rear Suspension, Removal and Installation).
REFER to: Upper Arm (204-02 Rear Suspension, Removal and Installation).
Noise from front suspension when turning — Crunch clunk or grunt noise from the front suspension occurring when turning to full left or right stop. Steering stops Normal condition. No action required.
Noise while braking — Noises occurring during this condition result from rearward and downward force applied to the suspension and subframe such as rearward force applied to the lower control arm. Front brake caliper INSPECT the front brake caliper(s).
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing).
Hub INSPECT hub(s). REPAIR or REPLACE as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
Subframe insulators INSPECT subframe. REPAIR or REPLACE as necessary.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
Lower control arm / ball joint CARRY OUT a ball joint inspection.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
INSTALL new control arm(s) as necessary. REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Lower Arm (204-02 Rear Suspension, Removal and Installation).
REFER to: Upper Arm (204-02 Rear Suspension, Removal and Installation).
Powertrain mounts INSPECT the powertrain mounts.
REFER to: Engine (303-01A Engine - 2.3L EcoBoost (201kW/273PS), Diagnosis and Testing).
REFER to: Engine (303-01B Engine - 3.0L EcoBoost, Diagnosis and Testing).
REFER to: Engine (303-01C Engine - 3.3L Duratec-V6, Diagnosis and Testing).
REFER to: Engine (303-01D Engine - 3.3L Duratec-V6 – Hybrid (BP), Diagnosis and Testing).
Noise while accelerating — Noises occurring during this condition result from powertrain torque and flex, such as torque on the powertrain mounts during acceleration. Body (inner fender, bulkhead, seams and pinch welds) INSPECT and REPAIR as necessary.
Hub INSPECT hub(s). REPAIR or REPLACE as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
Powertrain mounts INSPECT the powertrain mounts.
REFER to: Engine (303-01A Engine - 2.3L EcoBoost (201kW/273PS), Diagnosis and Testing).
REFER to: Engine (303-01B Engine - 3.0L EcoBoost, Diagnosis and Testing).
REFER to: Engine (303-01C Engine - 3.3L Duratec-V6, Diagnosis and Testing).
REFER to: Engine (303-01D Engine - 3.3L Duratec-V6 – Hybrid (BP), Diagnosis and Testing).
Exhaust system INSPECT the exhaust system.
REFER to: Exhaust System (309-00A Exhaust System - 2.3L EcoBoost (201kW/273PS), Diagnosis and Testing).
REFER to: Exhaust System (309-00B Exhaust System - 3.0L EcoBoost, Diagnosis and Testing).
REFER to: Exhaust System (309-00C Exhaust System - 3.3L Duratec-V6, Diagnosis and Testing).
REFER to: Exhaust System (309-00D Exhaust System - 3.3L Duratec-V6 – Hybrid (BP), Diagnosis and Testing).
Subframe pin(s), welds or insulators INSPECT subframe. REPAIR or REPLACE as necessary.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
Noise while entering driveways or driving over dips or depressions — Noises occurring during this condition result from the body , subframe or suspension twisting or flexing such as the tension on body structure welds. Body (inner fender, bulkhead, seams and pinch welds) INSPECT and REPAIR as necessary.
Stabilizer bar links INSPECT the stabilizer bar links. INSTALL new stabilizer bar links as necessary.
REFER to: Front Stabilizer Bar Link (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Stabilizer Bar Link (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Stabilizer Bar Link (204-02 Rear Suspension, Removal and Installation).
Subframe pin(s), welds or insulators INSPECT subframe. REPAIR or REPLACE as necessary.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
Clunk or pop or thump/thud — noise may be thought of as a loose part striking an adjacent part or a secure part coming loose when force is applied. A clunk is often rhythmic, repeatable and metallic in nature. Loose fasteners INSPECT for loose nuts or bolts.
Worn or damaged bushings INSPECT for out-of-position or damaged components.
Struts & shocks INSPECT for worn or damaged struts or shocks. REPLACE as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
Coil spring or spring seat out of position INSPECT for out-of-position or damaged components. ADJUST or REPLACE as necessary.
Worn or damaged ball joint(s) CARRY OUT a ball joint inspection.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing).
INSTALL new control arm(s) as necessary. REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Lower Arm (204-02 Rear Suspension, Removal and Installation).
REFER to: Upper Arm (204-02 Rear Suspension, Removal and Installation).
Rattle — noise occurs mostly over bumps, rough roads or uneven surfaces at low speeds (i.e. parking lot). A rattle is often a rapid, repetitive noise that can be metallic or non-metallic in nature.
  • Loose fasteners or brackets
  • Loose or damaged front struts, shock absorber(s) or shock absorber bushing(s), dust boot(s), jounce bumper(s)
  • Damaged spring or spring mount(s)
  • Damaged or worn control/radius arm bushing(s)
  • Worn or damaged stabilizer bar bushings or link(s)
INSPECT for loose nuts or bolts. TIGHTEN to specification. INSPECT for out-of-position or damaged components. ADJUST or INSTALL new components as necessary.
Whine, roar or groan — noise generally occurs over 30 mph and is often more noticeable with steering input. Loose or damaged wheel bearings INSPECT the front or rear wheel bearing(s). INSTALL new bearing(s) as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and Installation).
Shimmy Loose wheel nut(s) TIGHTEN the nut(s) to specification.
REFER to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
Loose front suspension fastener(s) TIGHTEN the fastener(s) to specifications.
Loose front wheel bearing(s) INSPECT the front wheel bearing(s). INSTALL new bearing(s) as necessary.
REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and Installation).
Strut(s) or shock absorber(s) INSPECT for worn or damaged struts or shocks. REPLACE as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Shock Absorber (204-02 Rear Suspension, Removal and Installation).
Shimmy — most noticeable on coast/deceleration. Also hard steering condition Excessive positive caster INSPECT the front suspension. REPAIR or INSTALL new suspension components as necessary.
Rough/harsh ride Incorrect tire pressure ADJUST the tire pressure. REFER to VC label.
Strut(s) or shock absorber(s) INSPECT for worn or damaged struts or shocks. REPLACE as necessary.
REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Rear Shock Absorber (204-02 Rear Suspension, Removal and Installation).
Spring(s) MEASURE the ride height.
REFER to: Ride Height Measurement (204-00 Suspension System - General Information, General Procedures).
INSTALL new springs as necessary. REFER to: Front Strut and Spring Assembly (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Front Strut and Spring Assembly (204-01B Front Suspension - AWD, Removal and Installation).
REFER to: Spring (204-02 Rear Suspension, Removal and Installation).
Damaged suspension component(s) INSTALL new suspension component(s) as necessary.
Shudder — occurs during acceleration from a slow speed or stop Incorrect ride height causing incorrect driveline angle INSPECT driveline angle.
REFER to: Driveshaft Angle Measurement (205-01 Driveshaft, General Procedures).

Pinpoint Tests

Diagnostic Overview

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


PINPOINT TEST A : VEHICLE DRIFTS, PULLS

Possible Sources

  • Unevenly loaded vehicle
  • Tire pressure
  • Tire forces
  • Brake drag
  • Incorrect vehicle alignment
  • Bent/damaged vehicle components
  • Steering system
A1 CHECK FOR UNEVENLY LOADED VEHICLE
  • Visually check the vehicle for an uneven loading condition.

Is the vehicle unevenly loaded?
Yes ADVISE the customer of uneven loading condition.
No GO to A2

A2 CHECK THE TIRE PRESSURES AND TIRE CONDITIONS
  • Check the tire pressures. Vehicle Certification (VC) Codes
    REFER to: Identification Codes (100-01 Identification Codes, Description and Operation).
    Check the tires for uneven/abnormal wear. Symptom Chart: Tire Wear REFER to: Wheels and Tires (204-04A Wheels and Tires, Diagnosis and Testing).

Are the tire pressures and tire conditions OK?
Yes GO to A3
No ADJUST the tire pressures to the specified pressure or INSTALL new tires as necessary.

A3 ISOLATE TIRE DRIFT/PULL CONDITION
  • Cross the front wheel and tire assemblies from left-to-right.

Does the vehicle drift/pull?
Yes If the vehicle drifts/pulls in the opposite direction, tire forces are causing the drift/pull. ROTATE the wheel and tire assemblies front-to-rear. If the vehicle drifts/pulls in the same direction, GO to A4
No Tire forces were causing the drift/pull and the concern has been corrected.

A4 CHECK FOR BRAKE DRAG
  • Spin all four wheel and tire assemblies by hand and check for brake drag.

Do the wheels spin freely?
Yes GO to A6
No
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing).
to diagnose brake drag condition

A5 CHECK FOR BENT / DAMAGED VEHICLE COMPONENTS
  • Visually check the vehicle for bent/damaged vehicle components.

Inspect the rear lower arm for bent/damaged.
Yes Replace the bent/damaged rear lower arm.
REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
No GO to A6

A6 CHECK THE WHEEL ALIGNMENT
  • Using alignment equipment and the manufacturer's instructions, check the wheel alignment.

Is the wheel alignment out of specification?
Yes ADJUST the alignment as necessary.
REFER to: Front Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
No Symptom Chart(s)
REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).
to diagnose steering system drift/pull/wander condition.


Component Tests

Ball Joint Inspection

  1. Prior to inspecting the ball joints for wear, inspect the wheel bearings. Install a new wheel bearing as necessary.
    REFER to: Front Wheel Bearing and Wheel Hub (204-01A Front Suspension - RWD, Removal and Installation).
    REFER to: Front Wheel Bearing and Wheel Hub (204-01B Front Suspension - AWD, Removal and Installation).
  1. NOTE: In order to obtain accurate measurements, the suspension must be in full rebound with the weight of the vehicle supported by the frame.

    Raise and support the vehicle by the frame to allow the wheels to hang in the rebound position.
    REFER to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation).
  1. Inspect the ball joint and ball joint boot for damage.
    • If the ball joint or ball joint boot is damaged, install a new lower control arm as necessary.
      REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
      REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
      REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
      REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
      REFER to: Lower Arm (204-02 Rear Suspension, Removal and Installation).
  1. NOTICE: Do not use any tools or equipment to move the wheel and tire assembly or suspension components while checking for relative movement. Suspension damage may occur. The use of tools or equipment will also create relative movement that may not exist when using hand force. Relative movement must be measured using hand force only.

    Inspect the ball joint for relative movement by alternately pulling downward and pushing upward on the lower control arm by hand. Note any relative vertical movement between the wheel knuckle and lower control arm at the lower ball joint.
    • If relative movement is not felt or seen, the ball joint is OK. Do not install a new lower control arm.
    • If relative movement is found, continue with Step 5.
  1. NOTE: In order to obtain an accurate measurement, the dial indicator should be aligned as close as possible with the vertical axis (center line) of the ball joint.

    To measure ball joint deflection, attach a suitable dial indicator with a flexible arm between the lower control arm and the wheel knuckle or ball joint stud.
  1. Measure the ball joint deflection while an assistant pushes up and pulls down on the lower control arm, by hand.
    • If the deflection exceeds the specification, a new lower control arm must be installed.
      REFER to: Front Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
      REFER to: Front Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
      REFER to: Rear Lower Arm (204-01A Front Suspension - RWD, Removal and Installation).
      REFER to: Rear Lower Arm (204-01B Front Suspension - AWD, Removal and Installation).
      REFER to: Lower Arm (204-02 Rear Suspension, Removal and Installation).
    • If the deflection meets the specification, no further action is required.

    Specifications

      General Specifications NOTE: Measurements listed at curb load. Curb load is defined as "full service fluids, full fuel tank(s), no passengers and no cargo"...

    General Procedures - Front Camber and Caster Adjustment

    Special Tool(s) / General Equipment Wheel Alignment System Adjustment NOTICE: Suspension fasteners are critical parts that affect the performance of vital components and systems...

    Other information:

    Ford Explorer 2020-2021 Service Manual: Removal and Installation - Air Distribution Door Actuator


    Removal Remove the glove compartment. Refer to: Glove Compartment (501-12 Instrument Panel and Console, Removal and Installation). Remove the screws and the air distribution door actuator. Disconnect the electrical connector...

    Ford Explorer 2020-2021 Owners Manual: SYNC™ 3 Troubleshooting


    Voice Recognition USB and Bluetooth Audio Phone Navigation (If Equipped) Apps Wi-Fi Connectivity Personal Profiles (If Equipped) Resetting the System Simultaneously press and hold the seek up and the audio unit power buttons until the screen goes black...

    Categories

    Windshield Wipers

    Push the lever up or down to operate the windshield wipers.

    A - Single wipe.

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