Question about 2004 Pontiac Grand Am
Just because you have fuel present at rail dosent mean its going threw injectors.there is a fuel pump in gas tank.If this pump is not putting out the right amount of pressure the fuel will not pressurise and spray out of injectors.I would do a fuel pressure check and you might find out you need a fuel pump.I would also check for clogged fuel filter.Dont rule out that this could also be an ignition problem.Check for spark.These few things should help you out.Thats why when you bring to dealer they plug car into computer and analize all the things so the dont change anything the dont have to.As a home mechanic you have to go by process of elimination.But somtimes this can get real costly,never mind very aggervating.Keep your cool and keep going,you have come this far but if i were to guess, id say its your fuel pump and filter.Good luck.
Posted on Apr 08, 2011
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Posted on Jan 02, 2017
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