What can i do?
My 2009 HHR runs fine when cranked but while driving or stationary, it chugs like it dosn't want to keep running. i have the same battery in it since i bought it, could that be the problem? Any advice will help.
Sounds fuel related. Check fuel pressure. Fuel injector(s) codes? MAF sensor clean? Vacuum leak? Any check engine lights? Misfire codes P0300, 301, 302...
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