Carburetor - Over Rich Condition on Cold Start
88subaru02NUMBER 02-59-88
DATE 03-28-88
1987 FEDERAL SPECIFICATIONS 3DR, 4DR, AND STATION WAGON 4WD CARBURETOR (OPEN LOOP) VEHICLES
SUBJECT: COLD DRIVEABILITY
Should you encounter a complaint of an over rich choke condition during cold engine warm-up, the condition can be improved through the use of a modified auxiliary choke pull-off spring.
This condition is noticed as a poor driveability complaint when driving a cold engine during low ambient temperatures, especially under a heavy load as in uphill driving.
The part number for the modified spring is 16275AA020 and can be obtained through normal parts channels.
Installation of the modified spring can be claimed for those vehicles within the warranty using the following information.
Description Operation # Time Failure Code
Choke Pull Off A427-201F 0.3 DEV-48
Auxiliary Spring Replace