ROUGH IDLE

  • Tiny
  • 91stealthrt
  • Dodge Stealth

Make- Dodge
Modle- Stealth R/T NA
Year- 1991
Mileage- 175,000 recent engine work, including heads.

Bought a 91 dodge stealth R/T NA last summer, ran fine for a while, then the IAC went out. I drove it for a while before I really noticed the idle problem. I replaced the IAC and now when its cold it idles around 2000 rpm and when its warmed up it idles around 600-700. It jumps slightly thought at idle, like someone is giving it a tiny bit of throttle, then it drops to 500 speeds up a little then goes back down over and over again. Also if I give it gas when its just idleing it revs up nice but when I get off the throttle right away it slows down and it almost dies, then comes back up around 600. I checked vacum lines, and the resistence on the IAC is still around 40 ohms on all pins so what else can I look for that would cause a rough idle. I also noticed that the rubber plug that goes in the idle adjustment screw was taken out so someone before me was messing with that. Does anyone know how far in or out it should be screwed at stock settings?
Thanks guys

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Monday, January 8th, 2007 AT 8:14 PM

12 Replies

  • Tiny
  • carundell
  • Member

Hey 91
There is a procedure to reset base idle, it also involves a timing check, though I can't remember the whole procedure. I will pm Service Writer with your dilemma and he can check in Alldata for ya!

Chris

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Tuesday, January 9th, 2007 AT 1:01 PM
  • Tiny
  • 91stealthrt
  • Member

Thanks alot for the reply!

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Tuesday, January 9th, 2007 AT 1:30 PM
  • Tiny
  • carundell
  • Member

Anytime! He should get back to ya sometime tonight!

Chris

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Tuesday, January 9th, 2007 AT 1:49 PM
  • Tiny
  • Service Writer
  • Expert
  • 9,254 posts

Payback is a bitch :lol:

91stealthrt,
I'll scan what I found into PDF files and send them later. Being a Service Writer, You may not be getting exactly what you need but I'll do what I can :)

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Tuesday, January 9th, 2007 AT 4:49 PM
  • Tiny
  • carundell
  • Member

Don't even go there. You gave me homework last night and this morinin' LOL

Chris

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Tuesday, January 9th, 2007 AT 5:04 PM
  • Tiny
  • Service Writer
  • Expert
  • 9,254 posts

I meant this is the payback to me :
And that's why it's a bitch :lol:

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Tuesday, January 9th, 2007 AT 5:10 PM
  • Tiny
  • 91stealthrt
  • Member

Any info yets guys? I appreciate the help

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Wednesday, January 10th, 2007 AT 1:17 PM
  • Tiny
  • Service Writer
  • Expert
  • 9,254 posts

Did you check your email buck snort? :

I sent you info yesterday and copied Chris. It didn't come back as undeliverable? He got his.

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Wednesday, January 10th, 2007 AT 3:35 PM
  • Tiny
  • 91stealthrt
  • Member

Sorry, I just checked. I didn't have anything. :S
sorry yo can try to send it again if you want

bucksnort1988@hotmail. Com

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Wednesday, January 10th, 2007 AT 6:34 PM
  • Tiny
  • Service Writer
  • Expert
  • 9,254 posts

I will re send right now. Maybe the hotmail isn't big enough?

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Wednesday, January 10th, 2007 AT 7:52 PM

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