PROM - Cold Start Stall
BULLETIN NUMBER: 92-6E-155SECTION: 6E Engine Emissions
NUMBER: 3
CORPORATE REFERENCE NUMBER: 376503
DATE: April 1993
SUBJECT:
COLD START STALL (INSTALL NEW PROM)
MODELS:
1992 C/K TRUCKS AND G VANS WITH 5.0L ENGINE (VIN H-RPO L03)
CONDITION
Some owners of 1992 model year C/K trucks and G vans with 5.0 liter V8 engines (VIN H) may comment of engine cold start stall. The potential stall generally occurs when the throttle is slightly opened.
CAUSE
Initial cold start stalling was due to lean fueling during cold start operation.
CORRECTION
If normal diagnostics and service procedures do not correct the above condition, a revised calibration PROM should be installed (see illustration).
SERVICE PARTS INFORMATION
WARRANTY INFORMATION
Labor
Operation Model Labor Time
T0500 C/K 0.6 hr.
T0500 G 0.5 hr.