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Check Engine Light

1992 Buick Regal 3.1L

engine light constantly comes on and idles up and down when you have your foot on the brake in drive

2005 ford explorer

check engine light is on…the obdII says #5 cylinder misfire…i’ve done evrything….smoke test….changed the jet…new gasket on #5…new coil pack….even the ford dealership can’t figure… Read More »2005 ford explorer