Regal V6-191 3.1L (1991)
Suspension Spring ( Coil / Leaf ): All Technical Service Bulletins
Rear Suspension Auxiliary Spring - Thud/Clunk
Bulletin:
91-3D-1
Date:
August 91
Ref. No.:
91-245-3
Corp. Ref. No.:
133403
SUBJECT:
REAR SUSPENSION AUXILIARY SPRING THUD/CLUNK
(LOWER ATTACHING BRACKET POSITIONING)
MODELS AFFECTED:
1989-91 REGALS
CONDITION:
Some 1989-91 Regals equipped with auxiliary rear springs may exhibit a thud/clunk type noise coming from the rear of the vehicle that is audible in the
passenger compartment. This condition is most apparent after a harsh/sharp road input such as a chuck-hole/speed bump.
CAUSE:
Auxiliary rear spring lower attaching bracket not in full contact with rear spindle rod. Under certain operating conditions lower attaching bracket may
flex and contact spindle rod resulting in thud/clunk noise.
CORRECTION:
Following service procedure indicated below, insure that the auxiliary rear spring lower brackets are properly seated on spindle rods.
SERVICE PROCEDURE:
1.
Raise vehicle and support in such a manner that rear suspension is extended in a full downward position.
2.
Inspect both right and left hand auxiliary spring lower brackets to insure they are in contact with spindle rods utilizing a .002" feeler gage.
3.
If a bracket is not in contact, loosen lower bracket to spindle rod bolt a maximum of two revolutions. Let bracket position itself on spindle rod and
re-torque bolt(s) to 46 N-m (36 lbs.ft.).
CAUTION:
THE AUXILIARY SPRINGS ARE UNDER COMPRESSION AND BOLTS MUST NOT BE REMOVED. DOING SO MAY RESULT IN
PERSONAL INJURY.
4.
Lower vehicle.
WARRANTY INFORMATION:
Labor Operation Number: T1752
Labor Time: 0.3 Hours
