The P0008 code indicates an issue concerning the position of the camshaft and crankshaft. In an internal combustion engine, the timing between these two is crucial as it helps determine the efficiency of the engine. If your OBD-II scanner registers this code, you must address it immediately.
What does diagnostic code P0008 mean? What are its symptoms and causes? Read on to learn the answers to these questions and more.
What Does the P0008 Code Mean?
Diagnostic trouble code (DTC) P0008 stands for “Engine Position System Performance Bank 1.” It may get registered when the car’s primary computer, often referred to as the power control module (PCM), detects that the crankshaft and camshaft are out of sync.
The camshaft sensor sends a signal to the PCM that identifies the right time to fire the fuel injectors (and on some vehicles, fire the spark plugs). To ensure that the engine is timed properly, the PCM tests for misalignment between the camshafts on one bank of the engine and the crankshaft. The PCM may register the trouble code if the camshaft is misplaced relative to the crankshaft’s position.
This DTC could appear in a vehicle that has other related codes such as P0009, P0016, P0017, P0018, and P0019.
Vehicles that are prone to code p0008 include various models of Chevrolet (especially Chevy Traverse), GMC, Cadillac, Buick, and Suzuki.
What are the Possible Causes of the P0008 Code?
The P0008 code can stem from numerous issues that may involve the components responsible for keeping the crankshaft and camshaft in sync. Below are the most common causes for code P0008:
- Loose or stretched timing chain
- Faulty or displaced crankshaft reluctor wheel (select General Motors vehicles have a technical service bulletin for this concern)
- Timing chain tensioner or guides issues
- Low engine oil level
- Faulty variable valve timing actuator (phaser)
- Faulty variable valve timing solenoid (oil control valve)
What are the Common Symptoms of the P0008 Code?
You might experience one or more of the symptoms listed below if your OBD-II scanner logged the P0008 code. OBD P0008 shares some of its symptoms with codes like P0009, P0016, P0017, and so on. Its warning signs include:
- Rough running and poor acceleration
- Increased fuel consumption
- Diminished power
- Rattling noise from the engine
- Engine may not start
How to Diagnose the P0008 Code
The P0008 code has many possible causes, from a worn timing chain to a defective variable valve timing actuator. This can make it difficult to determine its exact cause. Let your mechanic troubleshoot the issue if you are not confident with addressing the problem yourself.
If you do decide to troubleshoot the issue yourself, you’ll need to refer to factory repair information or a repair manual to know the correct steps and procedures.
How to Fix the P0008 Code
The struggle to narrow down what triggered the P0008 code is not the only challenge DIYers must overcome to fix the issue. They must also determine the solution that addresses its exact cause that is specific to their vehicle’s make and model. Otherwise, they’ll risk worsening the problem.
Use online auto repair resources and guides to identify the confirmed fixes for the P0008 code for your vehicle. Double-check your owner’s manual before attempting any solutions.
If you are looking for more in-depth information to resolve the DTC and any other future issue, consider investing in an ALLDATA single-vehicle subscription. Don’t hesitate to ask your mechanic for help if you are uncertain of anything.
Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic.