1999 Grand Am 3400 v6

  • Huchters358
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3 months 1 week ago #202857 by Huchters358
1999 Grand Am 3400 v6 was created by Huchters358
have a 1999 grand am that has a multiple miss fires I have changed coil packs and spark plugs and wires did compression test all between 150 up or down one or two psi also did upper and lower intake manifold gasket and put 6 new fuel injectors in it Can't finger out why it keeps doing multiple miss firing wondering if any of you guys might now what is cozening the multiple miss firing


Thanks Huchters358

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  • ToyotaKarl
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3 months 3 days ago #202902 by ToyotaKarl
Replied by ToyotaKarl on topic 1999 Grand Am 3400 v6
May want to check fuel pressure.

-Karl

Just because it is legal, doesn't make it right....

ASE Certified Master Tech

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