Glow Plug - No Cold Start Capability

9218chevy02

Number: 89-264-6

Section: 6

Date: September 1989

Corporate Bulletin No.: 936519


Subject:
NO COLD START CAPABILITY


Model and Year:
1985-89 C, K, R, V, G, P TRUCKS WITH 6.2L (VIN CODE J AND C) ENGINES


TO: ALL CHEVROLET DEALERS

THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 89-248-6, DATED DECEMBER 1988. DIAGNOSTIC PROCEDURES HAVE BEEN REFERENCED, AS WELL AS A CHANGE MADE IN THE SECOND PARAGRAPH. ALL COPIES OF 89-248-6 SHOULD BE DISCARDED.

Some 1985-89 C, K, R, V, G and P-trucks with a 6.2L diesel engine may experience a "no start" condition when cold.

The electronic glow plug controller, P/N 12052153 (color coded black), may be responsible for a no start condition.

If a no start condition exists, refer to the diagnostic procedure listed in Dealer Service Bulletin # 88-49, dated October 1987. Should a new glow plug controller be required, based on your diagnosis, the following controller should be used.

The new controller, P/N 12088520 (color coded grey), is being released with improved circuit board components to address no start difficulty.

Part is currently available from GMSPO.

Use applicable labor operation number and time.