S15/T15 2WD P/U V6-262 4.3L VIN W CPI (1993)
Suspension Spring ( Coil / Leaf ): All Technical Service Bulletins
Front Suspension - Squeaking Noise
Group Ref.: 3 - Steering/Suspension
Bulletin No.: 463302
Date: August, 1994
SUBJECT:
FRONT SUSPENSION SQUEAK
(INSTALL SERVICE KIT INSULATORS FOR COIL SPRINGS)
MODELS:
1992-94 CHEVROLET AND GMC TRUCK S PICKUPS
(TWO-WHEEL DRIVE ONLY)
CONDITION:
Some owners may comment that a squeaking noise can be heard emanating from the front suspension area of their vehicle. This condition may be
duplicated by jouncing the vehicle body in the front while it is parked. If the condition is not verified in this manner, road test the vehicle.
CAUSE:
The usual cause of this squeak is the contact between the coil spring and the upper frame pocket or control arm. The insulators installed in production
between the coil spring and the control arms might deteriorate allowing metal to metal contact to occur.
CORRECTION:
To fix this condition, a Service Kit (P/N 15989719) has been released containing two newly designed insulators with the upper insulator having a nylon
insert. Placement of the nylon insert into the rubber insulator is from the top. The insulator, along with the insert, goes on the top of the coil spring while
the other insulator without the insert goes on the bottom of the coil spring. Two service kits will be necessary if both front coil springs are causing a
noise.
Vehicles built after the VIN breakpoints have a newly designed frame pocket for the front coil spring.
SERVICE PROCEDURES:
