P0008 Chevy Traverse : Meaning, Causes, Symptoms & Fixes

P0008 Chevy Traverse

The DTC trouble code P0008 is sometimes seen in a Chevy Traverse, which can have several different causes. In fact, the P0008 Chevy Traverse code is a sign of a timing problem related to the vehicle’s engine, which every Chevy Traverse user should be aware of. However, sometimes this error code can also occur due to a software error. Therefore, you should try resetting it once.

Definition of P0008 Chevy Traverse

P0008 Code Definition: (Engine Positions System Performance Bank 1)

What Does P0008 Chevy Traverse Mean?

P0008 is a specific DTC code that indicates misalignment timing in bank one of the engine, in which the ECM detects that the timing for bank 1 of the engine is misaligned with the camshaft and crankshaft.

The P0008 Chevy Traverse diagnostic trouble code refers to a problem with the engine’s timing chain or camshaft phaser, causing the ECU to not be able to correctly determine the fuel mixture and ignition timing due to incorrect data being received, causing the engine to misfire. Affects performance, fuel efficiency, and emissions.

In a Chevrolet Traverse, bank 1 is cylinder 1 of the engine, and the P0008 code is usually caused by timing chain or camshaft phaser problems on the bank 1 side of the engine. Due to which the engine valves are unable to open and close at the right time.

P0008 Code Chevy Traverse Symptoms

Symptoms of the P0008 Chevy Traverse code are a check engine light, poor engine performance, rough idle, engine roughing, reduced fuel efficiency, unusual engine noise, or difficult engine starting.

Let us go through the symptoms of the P0008 Chevy Traverse code one by one in detail so that it can be easier for you to identify these symptoms.

1. Check Engine Light On

Whenever any DTC-related problem is observed in a vehicle, the first symptom is the illumination of the check engine light on the dashboard. Similarly, the first symptom when the P0008 code is encountered is the check engine light on the dashboard illuminating, which indicates that the engine management system has detected a problem.

So whenever you see the check engine light illuminating on the dashboard, you should scan the vehicle’s systems with an OBD scanner. With the help of the scanner, you will be able to diagnose the problem related to the code and know the reason why the code is displayed.

2. Low Engine Performance

Due to the P0008 code in the Chevy Traverse, you may notice a decrease in engine power or overall performance. The engine may seem sluggish, and acceleration may be slower than normal.

This code indicates a timing misalignment problem related to Bank 1 of the engine, which can cause the engine’s valve opening and closing timing to be disrupted, disrupting the engine’s fuel combustion process and resulting in reduced engine performance. However, there are many other reasons for reduced engine performance. Therefore, if you notice a decrease in engine performance, you should scan the vehicle’s systems with an OBD scanner.

3. Rough Idling

Most often, when the P0008 code displays in a Chevy Traverse, you will notice an engine rough idling problem. Because when the timing of the camshaft and crankshaft in the engine is disorganized, the fuel combustion process can be completely affected.

Therefore, the engine may run unevenly at idle, causing it to shake or vibrate more than normal. However, there are many other causes of engine rough idling, such as fuel system problems, ignition timing issues, or engine mechanical problems. Therefore, if there is a problem with engine rough idling, its causes should be investigated in depth.

4. Engine Misfires

The P0008 code in the Chevy Traverse refers to misalignment of the crankshaft and camshaft timing in engine bank 1, which can cause incomplete combustion of the fuel in the engine’s combustion chamber, causing the engine to misfire.

If the engine cylinders do not fire fuel correctly, it results in the engine misfiring. But there can be many other reasons for engine misfires, whose causes should be investigated promptly. So that additional damage to the engine can be prevented.

5. Reduction in Fuel Efficiency

Often, the P0008 code can cause high fuel consumption in vehicles. This code indicates misalignment of the engine timing, which disrupts fuel combustion in the engine. Problems with the timing chain or camshaft phaser in the engine can affect engine efficiency, leading to reduced gas mileage.

But it is not necessary that the reason for the decrease in fuel efficiency of your engine is every time the timing is misaligned; there can be other reasons for the decrease in fuel efficiency like air intake, vacuum leaks, or problems in the fuel or ignition system.

6. Loud Engine Noises

You may hear unusual rattling or knocking noises from the engine due to timing misalignment. These noises may be caused by the timing chain not working as it should. Therefore, abnormal noises coming from the engine should never be ignored.

Causes of P0008 Code in Chevrolet

The main cause of the P0008 code in a Chevy Traverse is a worn timing chain or faulty chain actuator, which causes misalignment of the camshaft and crankshaft timing for Bank 1 of the engine.

Possible causes of this problem may include a stretched timing chain, a worn timing chain guide, a damaged timing chain tensioner, or a faulty camshaft or crankshaft sensor. Additionally, oil flow issues, such as low oil pressure or dirty oil, can also hinder proper timing chain operation.

How To Fix P0008 Code in Chevy Traverse

First of all, to fix the P0008 code in the Chevy Traverse, it is mandatory to check the cause of the underlying problem that triggered it so that the problem can be fixed.

  • Use Diagnostic Scan : Use an OBD-II scanner to check and confirm the P0008 code. The scanner tool will give you information about the P0008 code problem and help you determine what is causing the problem and whether it is a persistent problem.
  • Inspect Engine Timing Components : Often, the cause of the P0008 code is related to timing chain, camshaft, or crankshaft issues. So to properly troubleshoot this problem, inspect the timing chain, tensioner, and related components for wear, damage, or misalignment. If you notice signs of failure in any of these components, consider replacing them immediately.
  • Check the oil system : Low lubrication in the engine’s internal components can also cause this problem, so make sure the engine has the proper amount of oil and clean oil flowing at the proper pressure. Low oil pressure can affect the operation of the timing chain. Change the oil if necessary or top it off if it’s low. If oil pressure is low, check the oil pump and replace it if necessary.
  • Camshaft & Crankshaft Sensors : Many times, a failure of the camshaft or crankshaft sensors can also be responsible for triggering the P0008 code. Because a bad sensor can send incorrect data to the vehicle ECU, the ECU detects misalignment of the camshaft and crankshaft timing and triggers the code. Therefore, check the camshaft and crankshaft position sensors for damage or disconnection. Also, consider replacing the crankshaft and camshaft sensors if necessary.
  • Clear the Trouble Code : Once you’ve located and diagnosed the root cause of the P0008 code, use an OBD-II scanner to clear the P0008 code. This step should be taken immediately after diagnosing the cause of the problem. However, you can manually clear this code by disconnecting one of the battery cables for 5 to 10 minutes.
  • Take A Test Drive : After clearing the codes, take the vehicle for a test drive to make sure the problem is actually resolved. Monitor engine performance and check for any recurrence of the code.

What Mistakes Do Mechanics Make When Diagnosing The P0008 Code?

If the mechanic is not thorough or experienced, they may make various mistakes when diagnosing the P0008 code, which may cost the vehicle owner.

  • Not clearing previous codes
  • Ignore other Trouble code
  • Neglect of visual inspection
  • Skipping the wiring check
  • Not verifying sensor readings
  • Ignoring the timing chain
  • Ignoring Testing the Variable Valve Timing System
  • Haste in diagnosis
  • Don’t test drive
  • Not double-checking the code
  • Miscalculating parts and replacing them unnecessarily


Q. Is it safe to drive with the P0008 code?

No, driving with the P0008 code is not considered safe. Because driving with it for a long time can damage the internal parts of the engine, which can cause the engine to completely break down or seize up.

Q. Can timing belt cause engine light?

Yes, in modern vehicles, a timing chain or belt failure can activate the check engine light on the dashboard. Although it can be a dramatic warning sign, this light should never be ignored.

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