V 1500 P/U 4WD V8-350 5.7L (1987)
2.
Low speed road load surge.
3.
Detonation and weak acceleration during warm-up.
4.
Poor cold starting at minus 20 degrees Fahrenheit.
5.
False Code 24 - Vss circuit fault when using 4 wheel drive low lock.
6.
Tip-In sags/hesitations during engine warmup.
7.
Long crank times, hot or cold.
Condition
Service Action
Driveability
On 1988 models, to determine
whether or not the revised calibration PROM was built into the vehicle, use a "Scan" tool to check to see if vehicle has a
revised calibration PROM (see chart attached). Install revised calibration PROM if vehicle is not so equipped.
Use Labor Op.
J6364
Labor Time:
.6 hr C,K,R,V .7 hr G
