For 1990-2009 cars only
Second Gear Starts for Chevrolet Express 1999
Checks | Cause | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Intermediate Clutch Plates (631, 632) | Seized | ||||||||
Direct Clutch Lube Feed | Blocked | ||||||||
Center Support Springs (635) | Jammed | ||||||||
Center Support Piston (636) | Jammed | ||||||||
1-2 Shift Solenoid Valve (313) |
| ||||||||
VCM/PCM | No VCM/PCM signal to the solenoid | ||||||||
Quad Driver Module | Failed | ||||||||
1-2 Shift Valve (314) | Stuck | ||||||||
Check the VCM/PCM for current DTCs | |||||||||
