Very high idle

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Jul 24, 2014 | 09:54 PM

neuro

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Joined: May 2004

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From: Boulder, Co

Very high idle

I WENT TO START MY 93 FD this morning, and the RPM went to 4000? So I shut it down.
ANY IDEAS?

Jul 24, 2014 | 10:21 PM

IRPerformance

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From: NJ

Stuck throttle cable or big vacuum leak most likely. I've also had cruise control cables stick.

Jul 27, 2014 | 02:28 AM

Dowah

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From: Sweden

Check the throttle so that it's not stuck. Mine got a bit corroded from being stationary for a few months and would not return once opened. Hade to take it out and clean it up.

Jul 27, 2014 | 12:31 PM

cptpain

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From: Texas

Sounds like you still have the AWS working, but that takes RPM's to 3000.

Jul 27, 2014 | 12:58 PM

7speed

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From: Abbotsford, British Columbia

I'm having the same problem.

Jul 27, 2014 | 12:58 PM

hairball

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From: texas

Sounds like vacuum leak check aws hose for cracks or carb cleaner and spray it where gaskets are to find leak idle will rise if it sucks any in needs to be running to do this though

Jul 29, 2014 | 08:36 PM

Mitchocalypse

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From: Alberta, Canada

Another thing to check, make sure the dashpot is set correctly. If not it can hold the throttle open way too far. Happened to me a while ago.

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Very high idle

Very high idle

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