A miss after going about 40 miles in a 2009 cobalt Lt

Asked by fieryangel62 Jan 10, 2017 at 10:57 AM about the 2009 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

What could be causing a 2009 Chevy cobalt to
start missing alittle after getting but up to 55 n one
time it sounded like it wanted to shut off while just
sitting idling

2 Answers
34,765

lrodri911 answered 7 years ago

Check for engine codes. If no codes, check fuel pressure. If pressure is above 35lbs, clean throttle body

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221,015

Rowefast answered 7 years ago

Possible causes - Faulty spark plug (s) - Faulty ignition coil (s) - Clogged or faulty fuel injector (s) - Intake air leak - Fuel injectors harness is open or shorted - Fuel Injectors circuit poor electrical connection - Ignition coils harness is open or shorted - Ignition coils circuit poor electrical connection - Insufficient cylinders compression - Incorrect fuel pressure...

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