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Mis-fire

Tiny
LEOGONZO
  • MEMBER
  • 1999 PONTIAC MONTANA
  • 6 CYL
  • FWD
  • AUTOMATIC
1999 pontiac montana, code said its a mis-fire. Will a tune up fix this for this is what I was told? Seems like it will be something else.
Thursday, August 18th, 2011 AT 5:46 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
A good place to start major tune-up ansd also refer to this link: https://www.2carpros.com/articles/engine-misfires-or-runs-rough
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Thursday, August 18th, 2011 AT 8:47 PM
Tiny
LEOGONZO
  • MEMBER
  • 3 POSTS
Thank you rasmataz, I will do the tune up. Just as an addition, the reason I suspected something else is because the van isn't running any different( rough or sluggish) but fairly normal. Now once in a blue moon it will idle at a higher RPM but usually back to normal when van is turned off and restarted.
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Friday, August 19th, 2011 AT 12:26 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Clean the idle air control valve out and see what happens.
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Friday, August 19th, 2011 AT 6:28 PM
Tiny
LEOGONZO
  • MEMBER
  • 3 POSTS
Hello again, so I did the complete tune up- plugs, wires, coils(all 3 packs) and fuel filter, I even bought a new idle air control vavle and my check engine light remains on. When I had the code pulled the first time it was only for a misfire. What else could it be?
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Saturday, August 27th, 2011 AT 1:12 AM

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