Ford Explorer: Engine System - General Information / General Procedures - Valve Guide Inner Diameter
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
-
NOTE:
Valve guides tend to wear in an hourglass pattern.
The ball gauge can be inserted into the combustion chamber side of the
valve guide, if necessary.
-
Use a ball gauge to determine the inside diameter of
the valve guides in 2 directions at the top, middle and bottom of the
valve guide.
-
Measure the ball gauge with a micrometer.
-
If the valve guide is not within specifications, install a new cylinder head assembly.
Inspection
NOTE:
Dropped spark plugs should always be discarded.
Unfired
An unfired spark plug should appear very clean
with a pure nickel finish to the threads and ground strap..
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
Measure the diameter of each intake and exhaust valve
stem at the points shown...
Other information:
Follow these guidelines for safe towing:
Do not tow a trailer until you drive your vehicle at least 1,000 mi (1,600
km).
Consult your local motor vehicle laws for towing a trailer.
See the instructions included with towing accessories for the proper installation
and adjustment specifications...
Diagnostic Trouble Code (DTC) Chart
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).
Diagnostic Trouble Code Chart
Module
DTC
Description
Action
BCM
B108A:0..
Categories
4 Inch Display

A - Tachometer.
B - Information display.
C - Speedometer.
D - Fuel gauge.
E - Engine coolant temperature gauge.
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