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post #1 of 7 (permalink) Old 06-02-03, 09:42 PM
aquickquestion
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I'm having problems with my '94 Escort

My '94 escort is having some engine problems. The engine is standard transmission. It runs fine when it is cold. As it is warming up, the engine will speed up and slow down. It only does this when idling, either in gear or in neutral. While actually in motion, it runs fine. Once it has warmed up, another problem begins. Only when the a/c is on, the engine will kill if the rpm's are low--around 1000. This happens when slowing down for traffic or actually stopping. If the a/c is turned off in time, killing of the engine can be avoided. What part or parts might be affecting this? This problem has been intermitent for about a year now, but seems to be occurring more often now. I'd greatly appreciate any help you could give me.

 
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post #2 of 7 (permalink) Old 06-03-03, 12:57 AM
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Ive heard a lot of stories like this end up with the replacement of a idle control unit or something like that.
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post #3 of 7 (permalink) Old 06-03-03, 06:54 AM
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Check and or replace the "ISS" or "ICS" which ever your car may have.
Idle speed sensor
Idle control sensor

When in doubt :DON'T
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post #4 of 7 (permalink) Old 08-08-03, 06:21 PM
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yes the "idle air control valve" which is mounted right on top of the intake throttle body is most likely to blame. I just replaced mine this week.

While the car idles the engine rpms tend to drop so low that the computer tries to compensate and what you end up with is an up and down revving during idle which in later stages causes the car to stall quickly whenever your not driving.

The valve ends up getting stuck shut or stops responding and the car is effectively choked of air.

This part is about 50 bucks...I got mine at Pep Boys.
 
post #5 of 7 (permalink) Old 08-12-03, 04:39 AM
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Re: I'm having problems with my '94 Escort

err Just try small adjustments of the air intake screw that in on the Carb under the air filter case
 
post #6 of 7 (permalink) Old 08-12-03, 02:36 PM
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I dont know of any way that any air adjustments can be made to the intake outside of the idle air valve.
 
post #7 of 7 (permalink) Old 08-12-03, 03:00 PM
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Re: I'm having problems with my '94 Escort

"Eagersniper" look at the year of the car.
The throttle position sensor can be adjusted also, but it's doubtful if this is it. Try it.

When in doubt :DON'T
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