Engine - Cold Start Roughness/Fails to Run On Cold Start
89chevy03Number: 88-392-6E
Section: 6E
Date: JAN., 1989
Subject: COLD START ROUGHNESS/FAILURE TO RUN
AFTER COLD START
Model and Year: 1987-88 CAVALIER, BERETTA, CORSICA WITH 2.0L (VIN CODE 1) ENGINE
TO: ALL CHEVROLET DEALERS
Customer comments of cold driveaway roughness, hesitation or failure to run after a cold start and idle may be addressed with a drop-in manifold deflector plate, service kit, PIN 10112342. The deflector plate is designed to be placed underneath the throttle body with the deflector pointing down into the manifold. This deflector prevents liquid fuel from collecting in the manifold's EGR passage which is then ingested into the engine at initial driveaway. Depending on ambient temperature, the engine needs to idle longer than one minute for this condition to occur.
After installation of this kit check the transmission throttle valve cable (Service manual Section 7A1) and the cruise control cable (Section 9C) for proper adjustment.
If the subject conditions still continue, refer to the Service Manual, Sections 6E2-A and B for further information.
Labor Operation Number: T1381
Labor Time : .7 Hours