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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 5783
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Have a rattle in motor when I start driving in my 2012

Customer Question

have a rattle in motor when I start driving in my 2012 acadia. it is not like the pinging sound from low olctane fuel. Not burning oil but low end power could be better. have 50,000 km and haved had this since purchased used at 40,000 km.
Submitted: 1 year ago.
Category: GM
Expert:  Jared D replied 1 year ago.

This engine has been known to have a timing chain rattle on some models. Does the noise sound like it is coming from the front of the engine (the passenger side)?

Expert:  Jared D replied 1 year ago.

Please let me know if you need additional information.

Expert:  Jared D replied 1 year ago.

Let me know if you need additional information. I would love to help if you still need assistance.