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1993 Ford Aerostar engine idle too fast

Tiny
GLRBIRD
  • MEMBER
  • 1993 FORD AEROSTAR
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Engine idles at 2000 rpm, throtle body butterfly is closed and does not seem to have a vacuum leak. Started when I had alternator replaced at local shop. They said it was a cracked hose from the air filter to the throtle body and taped it up but still idles fast.
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Wednesday, January 27th, 2010 AT 12:11 PM

1 Reply

Tiny
DAVID07722
  • MEMBER
  • 5 POSTS
First, you never, never tape a hose up, you replace it! As for your issue, it does sound like a vacuum leak. The best way to find one is look for the area that has a loud sucking sound or spray carb cleaner all around the engine while it is running, if the idle increase then that is where your vacuum leak is.
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Wednesday, January 27th, 2010 AT 9:02 PM

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