MY VAN IDLES ROUGH AND ENGINE LIGHT FLASHING ...

2002 Pontiac Montana

Tiny

Anonymous

March, 7, 2013 AT 3:26 PM

My van idles rough and engine light flashing with code P0304. I have swapped coil, repaced plugs and wires and no change. I have noticed in the past that the exhaust had a wierd smell I cant say it was rotten eggs and where I park in the driveway there is a black mark in the snow at tail pipe. I had a complete head gasket job a year and half ago.

FOUND 1153 RELATED QUESTIONS

1 Answer

Tiny

hmac300

March, 7, 2013 AT 3:51 PM

Check your fuelpressure shold be 52-59psi

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Replacing Head Gasket