Cherokee 2WD L4-150 2.5L VIN P MFI (1991)
Exhaust Manifold: All Technical Service Bulletins
Exhaust Manifold - Outer Studs Breaking
NO: 11-07-98 Rev. A
GROUP: Exhaust
DATE: Dec. 11, 1998
SUBJECT:
Outer Exhaust Manifold
Studs Breaking
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 11-07-98, DATED JUL. 31, 1998, WHICH SHOULD BE REMOVED FROM
YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITION OF MODEL YEARS, CLEAN
POINTS, AND NEW PARTS.
MODELS:
**1996 - 1999**
(AN)
Dakota
1991 - 1992
(MJ)
Comanche
**1997 - 1999**
(TJ)
Wrangler
**1991 - 1999**
(XJ)
Cherokee
1991 - 1995
(YJ)
Wrangler
NOTE:
THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A 2.5 ENGINE **(SALES CODE EPE)** BUILT PRIOR TO DEC. 7, 1998
(MDH 1207XX).
SYMPTOM/CONDITION:
The outer exhaust manifold studs may fatigue and break (Figure 1).
DIAGNOSIS:
Inspect either manifold stud for breakage. If breakage is noted, perform the Repair Procedure.
PARTS REQUIRED:
REPAIR PROCEDURE:
This bulletin involves replacing both outer mounting studs, clamps, and nuts **with new parts** and tightening the outer studs to a reduced torque of
