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2004,pont.gran am?

how to fix a misfire for a # 4 cylinder new plugs and plug wires.
Randy, October 2007
You didn`t mention what engine you had but if its a quad 4 its the coil paks and housing .....
if ts a 3300 its the fuel injector ....theses are both common problems ....24 years tech @ gm

bg, October 2007