Diagnostic Aids
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Inspect for one of the following:
- A Crankcase overfill causing oil to be forced through the PCV system.
- An aftermarket performance kit using an external fuel source.
- An engine mechanical condition
DTC P0507
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check-Engine Controls? | Go to Step 2 | Go to Diagnostic System Check - Engine Controls |
| 2 | Are any other DTCs set? | Go to Diagnostic Trouble Code (DTC) List | Go to Step 3 |
| 3 | Attempt to start the engine. Does the engine crank? |
Go to Step 4 | Go to Engine Will Not Crank - Crankshaft Will Not Rotate in Engine Mechanical |
| 4 | Does the engine start? | Go to Diagnostic Aids | Go to Engine Cranks but Does Not Run |