FRONT COIL SPRING RATTLE (INSTALL COIL SLEEVE)

SUBJECT: FRONT COIL SPRING "CLATTER OR RATTLE" (INSTALL COIL SLEEVE)

VEHICLES AFFECTED: 1992 " L AND N" CARS CHEVROLET "L" CAR PONTIAC "N" CAR OLDSMOBILE "N" CAR

Condition:

---------- Some front suspension coil springs may seem to rattle or clatter when the vehicle is in motion.

Cause:

------ Contact between the first and second coils at the upper (large) end of the coil spring. This contact occurs between 1/4 and 1/2 of a turn from the end of the coil spring on the coil directly below it.

Correction:

----------- Install coil sleeve, P/N 22077538 at 1 1/4 to 1 1/2 wraps (or coil turns) from the large end of spring.

Procedure:

---------- 1. Drive vehicle and verify noise.

2. Determine if spring already has a coil sleeve.

3. If no coil sleeve is present:

a. Inspect upper coil spring for witness marks or signs of interference.

b. If signs of contact are found, apply adhesive to inside of sleeve, press sleeve onto spring and slide up until sleeve hits pinchpoint between upper two coils. Refer to Figure #1.

c. Drive vehicle to verify that noise is eliminated.

d. If noise still exists, some other condition is present.

4. If coil sleeve already is present:

a. Verify location of coil sleeve. b. If sleeve is in wrong location follow step 3. c. If sleeve is in correct location some other condition is present.

COIL SPRING PART NUMBERS AFFECTED (ON SPRING TAGS)

22077059 DCA 22077061 DCC 22077968 DAB 22077060 DCB 22077062 DCD 22077969 DAC

For vehicles repaired under warranty use:

Labour Time: .5 Hour

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.