The DTC trouble code P0008 is commonly found in the Chevy Traverse and typically indicates a timing issue related to the engine. This code suggests that the engine’s camshaft and crankshaft are not properly synchronized, which can lead to performance problems.
In some cases, however, the P0008 code may also appear due to a software glitch. Before performing any major repairs, it’s recommended to try resetting the code to see if it returns.
Definition of P0008 Chevy Traverse
P0008 Code Definition: (Engine Positions System Performance Bank 1)
What does P0008 Chevrolet Traverse mean?
P0008 is a specific DTC code that indicates misalignment timing in bank 1 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 Chevrolet Traverse diagnostic trouble code refers to a problem with the engine’s timing chain or camshaft phaser, which causes 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 and affect performance, fuel efficiency and emissions.
In the Chevrolet Traverse, bank 1 is cylinder 1 of the engine, and the P0008 code is usually caused by problems with the timing chain or camshaft phaser on the bank 1 side of the engine. Which causes the engine valves to be unable to open and close at the correct time. The most common cause is a stretch of the timing chain or a failure of the camshaft phaser.
P0008 Code Chevy Traverse Symptoms
The symptoms of the P0008 Chevy Traverse code are check engine light, poor engine performance, rough idle, engine roughness, reduced fuel efficiency, abnormal engine noises, or difficult engine starting.
Let’s look at the symptoms of the P0008 Chevy Traverse code in detail one by one to make it 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 check engine light lighting up on the dashboard.
Similarly, the first symptom when encountering the P0008 code is the check engine light lighting up on the dashboard, indicating that the engine management system has detected a problem.
So whenever you see the check engine light lighting up on the dashboard, you should scan the vehicle’s system with an OBD scanner.
#2. Reduced Engine Performance
Due to the P0008 code in the Chevy Traverse, you may notice a decrease in the engine power or overall performance. The engine may feel sluggish, and acceleration may be slower than usual.
This code indicates a timing misalignment problem related to the engine’s bank 1, which may cause the timing of the engine’s valves to open and close, disrupting the engine’s fuel combustion process and resulting in reduced engine performance.
#3. Rough Idling
Often, when the P0008 code displays in the Chevy Traverse, you will notice a rough idling problem in the engine. Because when the timing of the camshaft and crankshaft in the engine is disordered, the fuel combustion process may be affected as a whole.
So, the engine may run unevenly at idle, causing it to shake or vibrate more than normal.
However, there are also many other causes of engine rough idling, such as fuel system problems, ignition timing problems, or mechanical problems of the engine itself.
#4. Engine Misfire
The P0008 code in the Chevy Traverse refers to the misalignment of the crankshaft and camshaft timing in engine bank 1, which can cause incomplete combustion of fuel in the engine’s combustion chamber, causing the engine to misfire.
If the engine cylinders do not fire the fuel correctly, it results in engine misfiring.
But there can also be many other causes of engine misfire, the causes of which should be investigated immediately. So that additional damage to the engine can be prevented.
#5. Decreased Fuel Efficiency
Often, the P0008 code can cause high fuel consumption in vehicles. This code indicates a 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 the engine’s efficiency, leading to reduced gas mileage.
But it is not necessary that the timing misalignment is the cause of your engine’s decreased fuel efficiency every time; there can also be other reasons for decreased fuel efficiency such as problems in the air intake, vacuum leaks, or fuel or ignition systems.
#6. Rattling Noises From Engine
You may hear abnormal rattling or knocking noises from the engine due to timing misalignment.
These sounds may be caused by the timing chain not working properly. 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 experienced, they can make several mistakes when diagnosing a P0008 code, which can cost the vehicle owner.
- Not clearing previous codes
- Ignoring other trouble codes
- Ignoring visual inspection
- Skip wiring checks
- Not confirming sensor readings
- Ignoring timing chain
- Ignoring testing the variable valve timing system
- Rushing into the diagnosis
- Not doing a test drive
- Not double-checking the code
- Miscalculating parts and replacing them unnecessarily
FAQ’s
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.
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.
Banty Paul, owner and founder of Auto Repair Zone, brings over 14 years of hands-on experience in automotive repair and maintenance. This blog was created to share expert troubleshooting guides, repair tips, maintenance advice, and cost estimates for cars and semi-trucks.
