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2004 Pontiac Grand Am SE 3.4L V6

Tiny
BRANDYFLANERY
  • MEMBER
  • 2004 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 160,000 MILES
Misfire in cylinder 3
Thursday, April 7th, 2011 AT 2:49 PM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Look at plugs wires and coils first, then compression.
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Thursday, April 7th, 2011 AT 3:05 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Also check for vacuum leaks, fuel pressure low, dirty fuel filter. Your fuel pressure should be 52-59 psi
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Friday, April 8th, 2011 AT 12:35 AM
Tiny
HANDYMAN
  • MEMBER
  • 12 POSTS
Yeap! Sounds like it could be a broken wire or bad plugs, if it's bogging down and lack of power, good chance of bad wires or both. The back bank of wires are good for this, a lot of heat build up in this area along the fire wall. I had this on my 96 grand prix.(Bad wires) You might also check the fuel injector.
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Friday, April 15th, 2011 AT 1:36 AM

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