K 1500 Truck 4WD V8-305 5.0L (1988)
Brake Light Switch: All Technical Service Bulletins
Lights - Revised Brake Lamp Switch Adjustment
Subject:
BRAKE LAMP SWITCH ADJUSTMENT
Model and Year:
1988-89 C1, C2, C3, K1, K2, K3
Number:
89-106-5
Section:
5
Date:
MARCH, 1989
TO:
ALL CHEVROLET DEALERS
This bulletin cancels Dealer Service Bulletin 88-65-5 (dated October, 1987) and provides revised brake lamp adjustment procedures. All copies of
88-65-5 should be discarded.
Figure No. 1 Stoplamp Switch
The brake lamp switch adjustment procedure has been revised for the 1988-1989 C/K models. Additional studies have shown that the procedure
described below will provide for greater accuracy of adjustment. Whenever the brake lamp switch requires adjustment, the following procedure should
be used:
*
Start Engine
*
Pull Lever (A) Rearward (Towards back of vehicle) Against its Stop (Figure No. 1)
*
Depress Brake Pedal Fully While Holding Lever (A) Rearward
*
Release Lever and Brake Pedal.
IMPORTANT: The brake lamp switch harness should be connected prior to adjustment.
Other areas that may contribute to a misadjusted brake lamp switch are:
*
A binding condition between the eyelet of the brake booster rod and its attachment pin at the pedal.
*
Pedal mounting bushings not properly lubricated.
For stop lamp switch adjustment on vehicles under warranty, use:
Labor 0p:
N2440
Labor Time:
.2Hr