My 2008 Chevy HHR sounds like a diesel engine diesel truck why is this safe

Asked by Guru5QH94 Jan 24, 2018 at 12:48 AM about the 2008 Chevrolet HHR LS FWD

Question type: Maintenance & Repair

My Chevy HHR 2008 sounds like a
diesel truck why? Is this safe?

2 Answers


If you're asking why your gasoline engine sounds like a diesel, then you should check oil level. If it's low you'll get a lot of rattling and knocking sounds (and then a motor self-destructing). If it has a bad exhaust it will also be loud. An exhaust leak at the manifold can be very loud, and also sound like a tapping noise in addition to just being a loud exhaust. Couldn't hurt to take it to a mechanic for an inspection.

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cruise does not work, replaced wheel switches

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