F 150 2WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
Lifter / Lash Adjuster: Customer Interest
Engine - Rough Running/MIL ON/DTC'S Set
Article No.
97-25-8
12/08/97
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RUNS ROUGH - MALFUNCTION INDICATOR LAMP
(MIL) ILLUMINATED - DIAGNOSTIC TROUBLE
CODES (DTC) P0300 THROUGH P0308 MAY BE
STORED IN MEMORY - VEHICLES BUILT THROUGH
11/26/97 EQUIPPED WITH 4.6L OR 5.4L ENGINE
^
LAMP - MALFUNCTION INDICATOR LAMP (MIL)
ILLUMINATED - DIAGNOSTIC TROUBLE CODES
(DTC) P0300 THROUGH P0308 MAY BE STORED IN
MEMORY - VEHICLES BUILT THROUGH 11/26/97
EQUIPPED WITH 4.6L OR 5.4L ENGINE
^
ENGINE - ROLLER FINGER FOLLOWERS
DISLODGE - DURING AMBIENT TEMPERATURES
LESS THAN -18 DEGREES C (0 DEGREES F) -
VEHICLES BUILT THROUGH 11/26/97 EQUIPPED
WITH 4.6L OR 5.4L ENGINE
LIGHT TRUCK:
1997-98 ECONOLINE, EXPEDITION, F-150, F-250 LD
1998 NAVIGATOR
ISSUE:
The roller finger followers may become dislodged and end up loose in the cylinder head during ambient temperatures of less than -18°C (0°F). This may
result in damage to the camshaft, roller finger follower, valve, retainer, valve guide, etc.
ACTION:
Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1.
Check compression of all cylinders.
2.
Remove cam cover from the affected side of the engine which showed low compression readings. Look for a follower that has become dislodged
and examine all components for damage (i.e., camshaft, valve, follower, etc.).
