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Van turns on but then off.

Tiny
SARA RUIZ
  • MEMBER
  • 1995 OLDSMOBILE 442
  • 6 CYL
I have to crank my oldsmobile siloutte various times and won't start then I press the gas petal and turns on but as soon as I release the gas petal it turns off. I have changed the gas pump and crankshaft sensor and it still does the same thing what can it be can it be the computer?
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Wednesday, January 12th, 2011 AT 10:36 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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Wednesday, January 12th, 2011 AT 11:06 PM

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