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Fires up. Then Stalls

Tiny
SMITH839
  • MEMBER
  • FORD MUSTANG
1. 1998 Ford Mustang GT
2. Approx. 89,000
3. Stick Shift
4. No Strange sounds or smells
5. Fluid leaks- None that I know of


This happened to my about 2 months ago, but then it hasn't happened till this week and today.

So I go to fire up my car, car starts fine no problems, but then it dies right away unless I have my foot on the gas. When it happened earlier this week I gave it about an hour and went back out and it fired up fine and the idle was fine. But now, it starts and the RPMs go up then fall to zero unless I have my foot on the gas. Then it fine until I let go.

I have searched other forums and the general consensus is the IAC, but I'm not a mechanic so who knows.

Thanks for all your help.
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Friday, November 16th, 2007 AT 3:15 PM

6 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
IAC would be my guess seing when the foot is on the throttle that it is good.

Does it do it even after car is warmed up or just when cold?
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Friday, November 16th, 2007 AT 6:10 PM
Tiny
SMITH839
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I tried to keep it running today and it was still doing it after it warmed up. But it is funny, I can have the car running for 10 mins and then let go of the pedal and it dies, and when I start it back up, it is fine.

Hope that helps.

Thanks
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Saturday, November 17th, 2007 AT 12:39 AM
Tiny
BLACKOP555
  • MECHANIC
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So your saying that it dies out and then its good, no more foot ont he throttle?
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Saturday, November 17th, 2007 AT 8:57 AM
Tiny
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Yes, it's like russian roulette, sometimes it does it and sometimes it doesn't.
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Saturday, November 17th, 2007 AT 11:53 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Take off your IAC and clean it, make sure its tight and wires are properly connected.

Also clean out the throttle body.
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Saturday, November 17th, 2007 AT 9:56 PM
Tiny
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I will give that a try. Thanks for all your help.
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Sunday, November 18th, 2007 AT 12:55 PM

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