2001 Chevrolet Express 3500 5.7L Poor Idle Quality, Misfire, MIL Lamp on
Customer states the engine runs rough, lacks power, and check engine light is on. Scan for trouble codes. P0335, P1637, P1638. I scoped the CKP signal wire at the PCM. Had a square wave signal. Checked power and ground at CKP sensor. Checked out ok. Perform vo...
FIX posted 2/22/2010
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 7 Replies Received (View Replies)7 Replies Received (Hide Replies)Related Documents & MediaRelated Documents & Media |
Message Closed w/FIX
Vehicle Data2001 Chevrolet Express 3500
Trouble Codes
|
Message Closed w/FIX
Vehicle Data
2001 Chevrolet Express 3500
VIN | 1GBHG31R61 |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0335 | Crankshaft Position Sensor 1 Circuit Malfunction (No Signal) |
P1637 | TCM Internal - EEPROM Performance |
P1638 | TCM Internal - CAN 1 RAM Performance |