SERVICE MANUAL UPDATE-NEUTRAL START SWITCH REPLACEMENT

Model and Year: 1990 W CAR WITH 440-T-4 TRANSAXLE

TO: ALL CHEVROLET DEALERs

The neutral start switch replacement procedure has been revised. Use the following procedure when removing or installing the neutral start switch on 1990 Lumina models. Please update page 7A-11 of your service manual.

Procedure:

----------- REMOVE OR DISCONNECT --------------------- 1. Air cleaner assembly. 2. Negative battery cable. 3. Cruise control servo retaining nuts, and position servo aside. 4. Set parking brake and place transaxle in "Neutral". 5. Harness bracket retaining bolt from top of transaxle. 6. Shift lever retaining nut from transaxle, position shift lever aside. 7. Neutral switch retaining bolts at transaxle. 8. Electrical connection from neutral switch, remove neutral switch.

INSTALL OR CONNECT

1. Electrical connection to neutral switch. 2. Neutral switch to transaxle. - Align locator notches on neutral switch. 3. Neutral switch retaining bolts. Tighten - Bolts to 24 N.m (18 lb. ft.) 4. Shift lever to transaxle and nut. Tighten - Nut to 20 N.m (15 lb. ft.) 5. Cruise control servo to mounting studs. Tighten - Nuts to 2 N.m (18 lb. in.) 6. Negative battery cable. 7. Aircleanerassembly Inspect - Neutral switch operation.

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.