B2500 SE Cab Plus 2WD L4-2.5L VIN C (1999)
Muffler: All Technical Service Bulletins
Exhaust Heat Shields - Buzzing/Rattling Noise
Bulletin No. 012/98
Issued 11/04/98
Revised 11/11/98
Category
F (01)
Applicable Model/s
1994-99 B-Series
1991-94 Navajo
Subject
BUZZING/RATTLING NOISE - LOOSE
CATALYST/MUFFLER HEAT SHIELDS
BULLETIN NOTE
This bulletin supersedes F 002/96.
APPLICABLE MODEL(S)/VINS
All 1994-99 B-Series and 1991-94 Navajo.
DESCRIPTION
A buzzing or raffling noise may be heard coming from the exhaust system during normal driving conditions or at idle. This may be caused by a loose
heat shield attachment to the catalytic converter catalytic pipes, muffler pipes and/or muffler.
Customers complaining of this concern should have their vehicle repaired according to the following procedure.
Note
^
Do not replace the catalytic converter or muffler to eliminate this noise.
REPAIR PROCEDURE
1.
Verify customer complaint
2.
Install worm clamps to the catalytic converter, or muffler as shown.