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Old 01-29-2006, 20:01   #1 (permalink)
Michel25b
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Idle Issue - 93 Ford escort

Hello, I have a 93 for escort, when I start the car cold then idle is fine,
but if the motor is warm, then the car starts rpm goes to 1000 like normal
and then drops down to below 100 and sometimes stalls, then goes back to
normal.

Also lately it started getting worce were idle while on park goes up and
down constantly but not always. If I have the car in drive then it's fine.


I had post on here in the past and was told it may be the throttle body
that needed cleaning, I tried this and it did not fix the problem.

Any help would be good!

Thanks
Michel Belanger

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Old 01-29-2006, 20:01   #2 (permalink)
Sharon K.Cooke
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Re: Idle Issue - 93 Ford escort

Michel25b wrote:
>
> Hello, I have a 93 for escort, when I start the car cold then idle is fine,
> but if the motor is warm, then the car starts rpm goes to 1000 like normal
> and then drops down to below 100 and sometimes stalls, then goes back to
> normal.
>
> Also lately it started getting worce were idle while on park goes up and
> down constantly but not always. If I have the car in drive then it's fine.
>
> I had post on here in the past and was told it may be the throttle body
> that needed cleaning, I tried this and it did not fix the problem.
>
> Any help would be good!
>
> Thanks
> Michel Belanger


IAC valve, sometimes called ISC valve, is worn.
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Old 01-30-2006, 07:01   #3 (permalink)
Ol' Duffer
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Re: Idle Issue - 93 Ford escort

In article <6b054d107cfa5497193763923eabd778
@localhost.talkaboutautos.com>, michel_annie22@hotmail.com says...
> Hello, I have a 93 for escort, when I start the car cold then idle is fine,
> but if the motor is warm, then the car starts rpm goes to 1000 like normal
> and then drops down to below 100 and sometimes stalls, then goes back to
> normal.


There are a couple of valves and sensors that can cause idle
problems. It's also not uncommon for the intake manifold
gasket to get leaky.
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Old 01-30-2006, 07:01   #4 (permalink)
scott21230@gmail.com
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Re: Idle Issue - 93 Ford escort

Have you cleaned the MAF sensor?

Have you checked for vacuum leaks? (including all devices that use
vacuum)

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