1990 Pontiac Transport

Tiny
LUKEGENIGESKI
  • MEMBER
  • 1990 PONTIAC TRANSPORT
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 241,000 MILES
Just Replaced the engine control modual and now the car wants to hesatate when accelerating from a stop after it warms up. If I feather the gas and take off slow it seems to be ok and it only happens when taking off from a stop it is fine once it gets going.
Sunday, April 13th, 2008 AT 6:55 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
You may have a vacuum leak, get a can of spray gumout, spray the vac lines and maniflod area, when the idle changes, youve found the leak! You want the engine running and spray on the outside but do direct the stream onto the hoses, if it is a vacuum leak, the engine idle will change speed, then you have detected a leak, repair the vacuum leak and see how it runs!
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Sunday, April 13th, 2008 AT 6:56 AM

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