
2001 GMC Sierra 3500 SL 8.1L MIL Lamp on
This truck does not have much info through Mitchell On Demand. Very little to no info. It is a HD 3500 service truck. I thought I'd look up a same year & comparable model Chevrolet 3500 but the diagrams & flow charts show the sensors under the intake. This... ![]()
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VIN | 1GDJC39G21 |
Engine | 8.1 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / EFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Pending After 6 Miles |
Misc. | Knock Sensor Fault |
Trouble Codes
P0327 | Knock Sensor Front Circuit Low Voltage |
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Vehicle Data
2001 GMC Sierra 3500 SL
VIN | 1GDJC39G21 |
Engine | 8.1 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / EFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Pending After 6 Miles |
Misc. | Knock Sensor Fault |
Trouble Codes
P0327 | Knock Sensor Front Circuit Low Voltage |