P0008 code?

2011 GMC ACADIA
170,000 MILES • 3.6L • 6 CYL • 4WD • AUTOMATIC
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DAVEYAUN
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New to me 2011 GMC Acadia. Motor was replaced with an 0 mile long block and has 27,000 miles on it. Now shows P0008 code. Is it reasonable to think it’s the timing chain? At 27,000 miles?! Oil was low so it was topped off. Code still persists. Motor has parts and labor covered til October 26th of 2026. Should I drive it an hour back to the shop or figure out a way to tow it there? Is there anything I can do to before driving or towing it?
Mar 26, 2026 at 11:41 AM
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STRAILER
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Hello,

Can I ask if while cold does the engine make a slight rattle noise at idle, I would listen from under the hood or you can upload a short video of the problem so I can hear it. If so this means the timing chain/components are worn out. I would make sure the engine oil is clean and full with a new filter, then clear the codes to see if the code come back and if so take it back to the shop that did the work.
Mar 27, 2026 at 9:35 AM