Engine - No Start On Incline

Number: 87-83

Section: 6C

Date: MARCH 1987
Subject: ENGINE NO START ON INCLINE


Model and Year: 1985-87 CELEBRITY WITH 2.8L
MPFI V-6 (VIN CODE W)
TO: ALL CHEVROLET DEALERS


Some 1985-87 Celebritys equipped with a 2.8L MPFI V-6 engine may exhibit a no start condition when parked in a nose down attitude of approximately 15 degrees with less than a quarter of a tank of fuel.

This condition may be caused by air/fuel vapor ingestion through the vapor rejection port of the fuel pump resulting in fuel starvation.

Celebritys exhibiting this condition may be repaired by installation of an intank fuel pump that incorporates usage of a vapor rejection port with an umbrella check valve.

Service kits which include pumps with this feature are noted below by applicable model year and are available from GMSPO.

MODEL YEAR PART NUMBER

1985-86 25115689
1987 25115465


Use applicable Labor Operation Number and Time.