2005 Chevy Cobalt 2'2 ecotec

Asked by Freida May 02, 2020 at 03:48 PM about the 2005 Chevrolet Cobalt LS Coupe FWD

Question type: Maintenance & Repair

  Started My Cobalt & noticed it
was running rough&rattled a little
shut it off imediatly figured it was
timing so I replaced the timing
chain & gears checked the
balance shaft chain&gears&it was
ok& timing marks were good put it    
back together & it just spins freely
like there's no compression so
pulled each plug1by1 and
checked each piston there all ok
so would it be a bent valve(???
Please can somebody help me
out with this thank you

1 Answer
18,255

munron answered 4 years ago

Do a compression test. A bent valve won't be closing properly and will be immediately evident on a compression test.

Mark helpful

Your Answer:

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