2002 Pontiac Montana fouled plug

Tiny
WILLIAM505
  • MEMBER
  • 2002 PONTIAC MONTANA
  • 3.4L
  • V6
  • FWD
  • AUTOMATIC
  • 150,000 MILES
The spark plug becomes fouled and starts to miss
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Wednesday, May 13th, 2015 AT 6:19 PM

3 Replies

Tiny
MHPAUTOS
  • EXPERT
First easy question, how many Kms or miles on the plugs? And is it black fuel fouling or white ash deposits?
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Thursday, May 14th, 2015 AT 3:09 AM
Tiny
WILLIAM505
  • MEMBER
All I know is the van starts misfiring after 3 days of running and acts like she is stalling at red lights
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Thursday, May 14th, 2015 AT 7:43 PM
Tiny
MHPAUTOS
  • EXPERT
Start with a compression test and new spark plugs, check air filter is not blocked.
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Friday, May 15th, 2015 AT 5:44 AM

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