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Electrical

Tiny
61F100
  • MEMBER
  • 1989 BUICK LESABRE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
My 1989 Buick LeSabre Will fire up and run until I put my foot on the brake pedal to put it in gear, then it dies. It will try to fire agian a couple more times, but then won't even turn the starter until it rest 5-10 minutes. Then it will fire & run again until I put my foot on the brake pedal again. Where do I start looking? Fuses are OK.
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Saturday, April 30th, 2011 AT 5:23 PM

2 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Brake booster causes heavy vacuum draw if its leaking vacuum it would cause those symptoms. Try plugging off line and see if that solves running problem.
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Saturday, April 30th, 2011 AT 5:26 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Any applicable mil codes, you can check those, yourself? How long since a tune-up? Use a gage and check fuel pressure.

Are you saying it idles good without touching the throttle?

Make sure the battery has a full charge and the connections are good. The generic spec for a full charge is around 12.6 volts, use a digital multimeter across battery posts, everything off.

You can check the starter circuit?
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Saturday, April 30th, 2011 AT 5:32 PM

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