Lincoln Aviator: Engine System - General Information / General Procedures - Valve Stem Diameter
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. Verify the diameter is within specification.
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...
Other information:
DTC Chart: Roof Opening Panel
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).
BCM Module DTC Chart
DTC
Description
Action
B12F4:12
Vehicle Speed Output: Circuit Short To Battery
GO to Pinpoint Test A
B12F4:14
Vehicle Speed Output: Circuit Short To Ground or Open
GO to Pinpoint Test A
-
All other BCM Diagnostic Trouble Codes (DTCs)
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing)...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the floor console.
Refer to: Floor Console (501-12 Instrument Panel and Console, Removal and Installation).
Remove the bolts and the duct section...