CAMPAIGN:EVAPORATIVE CANISTER PURGE THERMO VACUUM SWITCH

EVAPORATIVE CANISTER PURGE THERMO " C " SWITCH (TVS)

MODELS AFFECTED: 1983 LESABRE, LESABRE/ELECTRA ESTATE WAGON, ---------------- ELECTRA, AND RIVIERA EQUIPPED WITH 5.OL ENGINE (RPO LV2, VIN CODE Y)

NOTICE: This bulletin revises the "Technical Procedure" and "Warranty Information" sections of Emission Campaign Bulletin 83-C-16, dated August, 1988, as follows:

In the "TECHNICAL PROCEDURE" section:

Add to Step 5: On the Riviera, disconnect the electrical connector at the A/C compressor, loosen three compressor mounting bolts, remove belt, remove bolts and move A/C compressor aside to provide access to the TVS.

Add to Step 10: On the Riviera, reinstall A/C compressor to mounting brackets, reinstall bolts and belt. Using a Belt Tension Gage, tension (used) belt to 400 N. (90 lbs.) minimum. Torque mounting bolts to 50 N.m (38 lbs. ft.). Reconnect electrical connector to compressor.

In the "WARRANTY INFORMATION" Section:

SUBLET PART FAILED PARTS FAILURE LABOR LABOR OTHER DEALER OPER COUNT PART NO ALLOW CODE OP NO HOURS HOURS MTL TWG ---- ----- ------- ----- ------- ----- ----- ----- ------- o Replace Switch, Thermo Vacuum Canister Purge, Riviera Only 1 22536551 ** 96 V4831 .6 *.l ---

o Replace Switch, Thermo Vacuum Canister Purge, LeSabre, LeSabre/Electra Estate Wagon, and Electra 1 22536551 ** 96 V4830 .4 *.l ---

* Dealer Administrative Allowance. ** List Current Dealer Price, Plus 30%.

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.