my 2007 cobalt the 4th cylinder is misfiring when it is idles but not when i'm driving alrady changed the sparkplugs checked the coil and change the injector but it hasn't helped any sugesstions
took it in my car to the dealership and they are going to put a new motor in it is covered under the 100,000 mile powertrane warranty there was something wrong internally with the 4th cylinder so it's all covered by gm am i ever happy about that
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