Engine - No Start and/or Poor Driveability
Bulletin 87-6E-9Date Feb. '87
Ref. No. 87-068-6E
Corp. Ref. No. 706503
SUBJECT: NO START AND/OR POOR DRIVEABILITY, INTERMITTENT ECM CODES, BCM CODES, AND ELECTRICAL SYSTEM SHORTS
MODELS AFFECTED: 1987 RIVIERAS BELOW VIN HU404152
Some 1987 Rivieras may experience a no-start condition or other electrical system conditions that could be caused by the engine wiring harness being shorted to an exhaust system heat shield. If the harness insulation is cut by the heat shield, an electrical short is possible.
The harness should be checked for signs of chafing or abrasion whenever diagnosing electrical problems on models affected involving circuits that are routed through connector C100 (refer to Service Manual, Section 8A).
BRAKE BOOSTER:
If chafing or abrasion is found in the area of the exhaust heat shield, Part Number 8877974, tie strap, should be used to tie the harness to the brake booster (see illustration) to provide more clearance between the harness and heat shield.
WARRANTY INFORMATION
Labor Operation Number: T5132
Labor Time: 0.2 hour
Trouble Code: 92