Exhaust - Squeak From Front of Vehicle
Group Ref.: EngineBulletin No.: 236602A
Date: September, 1993
SUBJECT:
SQUEAK NOISE FROM FRONT OF VEHICLE (REPLACE EXHAUST MANIFOLD PIPE SPRINGS WITH DAMPERS)
MODELS:
1990-94 BUICK CENTURY AND REGAL
1990-94 CHEVROLET CELEBRITY, LUMINA, AND APV
1990-94 OLDSMOBILE CUTLASS CIERA, CUTLASS SUPREME, AND SILHOUETTE
1990-93 PONTIAC 6000, GRAND PRIX, AND TRANS SPORT
THIS BULLETIN SUPERSEDES BULLETIN # 236602, DATED SEPTEMBER, 1993, ALL COPIES OF WHICH SHOULD BE DISCARDED.
This bulletin is being revised to add additional model years, vehicle models, and engine types. The artwork remains the same. Previous divisional publication numbers were:
Condition:
Some 1990-94 U-vans and "A and W" cars with engines indicated (see illustration), may exhibit a squeak noise coming from the front of the vehicle. This condition is most evident during a "garage shift" maneuver, but may occur during any maneuver or action that results in a vehicle rocking motion such as entering or exiting a vehicle.
Cause:
Movement between the exhaust seal and the exhaust manifold and/or the exhaust pipe generates a noise condition.
Correction:
Install Dampack Dampers, P/N 10218583 (two required) and washers, P/N 2441143 (two required) in place of the existing exhaust manifold pipe springs as shown in the illustration.
Parts are currently available from GMSPO.
Warranty Information:
Labor Operation Number: T1844
Labor Time: 0.3 Hr.