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GMC
Acadia
Trouble Codes
P Codes (Powertrain)
P0001 - P0099
P0023
Codes P0017 and P0023
2007 GMC ACADIA
130,000 MILES
ARMANDO ORTEGA
MEMBER
6 POSTS
My engine was fixed. I believe they played with the timing chain and now I have those two codes.
Aug 18, 2021 at 1:32 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
Good afternoon,
What was repaired on the engine? Please give me the details.
Both codes are related to the timing chain.
Roy
Images (Click to enlarge)
Aug 18, 2021 at 3:06 AM
ARMANDO ORTEGA
MEMBER
6 POSTS
They replaced the valves.
Aug 18, 2021 at 5:51 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
Okay, thank you.
They have the timing chain on wrong.
Return the car to the repair shop and have them set the timing correctly.
I attached a diagram of the lower chain that is most likely the issue.
I attached a YouTube video of the procedure for you.
https://www.youtube.com/watch?v=BhDs1GcwRCs
Roy
Images (Click to enlarge)
Aug 18, 2021 at 6:14 AM
ARMANDO ORTEGA
MEMBER
6 POSTS
Because it lost compression.
Aug 18, 2021 at 6:21 AM
ARMANDO ORTEGA
MEMBER
6 POSTS
Thanks.
Aug 18, 2021 at 6:23 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
You are welcome.
Always glad to help.
Roy
Aug 18, 2021 at 6:29 AM
ARMANDO ORTEGA
MEMBER
6 POSTS
Replacing the camshaft position sensor and crankshaft position sensor could be a solution?
Aug 18, 2021 at 6:30 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
No, not at all. The timing is incorrect. The sensors just send a signal to the ECM. They have nothing to do with adjusting the timing.
Roy
Aug 18, 2021 at 6:35 AM
ARMANDO ORTEGA
MEMBER
6 POSTS
Okay, thanks.
Aug 18, 2021 at 9:27 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
You are welcome.
Always glad to help.
Roy
Aug 18, 2021 at 9:36 AM
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