Does anyone happen to know what the below fault codes may refer to???
686h/1670
p0008
2137h/8503
fault codes unknown
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jimmymarsbar
- (Donor 2016)
- Posts: 139
- Joined: 04 Apr 2016, 11:45
- x 13
Re: fault codes unknown
What did you use to read the codes?
The P0008 code I haven't encountered before, but I've found this on't web;
The Engine Control Module (ECM) tests for misalignment between both camshafts on one bank of the engine & the crankshaft. The misalignment would be at an idler sprocket for either bank or at the crankshaft. Once the ECM learns the position of both camshafts on one bank of the engine, the ECM compares the learned values to a reference value. The ECM will set a DTC if both learned values for one bank of the engine are exceeding a calibrated threshold in the same direction
Potential causes of a P0008 code may include:
Stretched timing chain
Crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC)
Timing chain tensioner problem
If your vehicle is new enough that it still has powertrain warranty left, by all means let the dealer perform the fix. Generally, diagnosing and fixing this DTC will involve inspecting the timing chains and tensioners for excessive wear or misalignment, and inspecting the crank reluctor wheel for proper positioning. Then replacing parts as required. As said earlier, there are known issues with some GM engines so there may be updated or revised replacement parts. Please consult a factory service manual for more vehicle make & model specific troubleshooting steps.
Read more at: https://www.obd-codes.com/p0008
Copyright OBD-Codes.com
The P0008 code I haven't encountered before, but I've found this on't web;
The Engine Control Module (ECM) tests for misalignment between both camshafts on one bank of the engine & the crankshaft. The misalignment would be at an idler sprocket for either bank or at the crankshaft. Once the ECM learns the position of both camshafts on one bank of the engine, the ECM compares the learned values to a reference value. The ECM will set a DTC if both learned values for one bank of the engine are exceeding a calibrated threshold in the same direction
Potential causes of a P0008 code may include:
Stretched timing chain
Crankshaft reluctor wheel has moved and is no longer referenced to top dead center (TDC)
Timing chain tensioner problem
If your vehicle is new enough that it still has powertrain warranty left, by all means let the dealer perform the fix. Generally, diagnosing and fixing this DTC will involve inspecting the timing chains and tensioners for excessive wear or misalignment, and inspecting the crank reluctor wheel for proper positioning. Then replacing parts as required. As said earlier, there are known issues with some GM engines so there may be updated or revised replacement parts. Please consult a factory service manual for more vehicle make & model specific troubleshooting steps.
Read more at: https://www.obd-codes.com/p0008
Copyright OBD-Codes.com