Wagoneer L6-242 4.0L VIN M FI (1988)
Engine Mount: All Technical Service Bulletins
Engine Mount - Vibration/Grounding Noise
Models
1987-88 MJ, XJ, YJ Vehicles Equipped with 4.0L & 4.2L Engines
Subject
Left Engine Mount System Grounding
Index
ENGINE
Date
May 1, 1989
No.
09-53-89 REVISION A (C09-58)
P-1709
BODY CODE LEGEND
MJ - COMANCHE XJ - CHEROKEE/WAGONEER YJ - WRANGLER
This bulletin supersedes Technical service Bulletin 09-53-89 which should be removed from your files. The part number for YJ engine bracket has been
added.
SYMPTOM/CONDITION
Some 1987/88 Jeep vehicles equipped with 4.OL or 4.2L engines may experience a vibration and/or a grounding type noise during a heavy acceleration,
most noticeable in first gear. The vibration/noise may intensify when the vehicle is in the 4WD mode.
This vibration/noise may be the result of a grounding condition of the left engine mounting system.
DIAGNOSIS
Road test vehicle and perform several (4 or 5) moderately heavy accelerations in first gear. If a vibration or grounding noise is observed inspect the
exhaust system and radiator fan shroud as the possible source of the vibration/grounding condition and repair as required. If no grounding is detected
with these items, perform the following Repair Procedure.
PARTS REQUIRED
AR
Bracket, Engine (L) YJ
P/N 52040269
AR
Bracket, Engine (L) MJ-XJ
P/N 52002607
AR
Mount, Engine
P/N 52040267
