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Discussion Starter · #1 ·
I have a 1990 Escort LX and have been having a problem that when the car is warm but not up to full temp, it stalls and the revs drop to about 1000. Anyone Else had this problem, or know how to fix it?
 

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Mirage said:
I have a 1990 Escort LX and have been having a problem that when the car is warm but not up to full temp, it stalls and the revs drop to about 1000. Anyone Else had this problem, or know how to fix it?
its normal for the car to idle high when cold then fall to 1000 RPM when warm
but as for stalling when does it stall?
it cant rev to a 1000 if it has stalled already
unless you mean i idles so low that it sounds like it going to stall then revs up again
if so i would look for a vacume leak
 

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Discussion Starter · #3 ·
its normal for the car to idle high when cold then fall to 1000 RPM when warm
but as for stalling when does it stall?
it cant rev to a 1000 if it has stalled already
unless you mean i idles so low that it sounds like it going to stall then revs up again
if so i would look for a vacume leak[/quote]

ok, it seems to be an itermitnet problem. some times it runs fine. mostly it seems to run fine if I just jump in and run it (cold) or after I let it sit and runn up to temp, like if I let it run for 30 min..

now if it is just kinda wasm (like running for 5 min..) I Go to put the clutch in (its a stick) and as soon as I hit the gas it eater stalls or the RPMs drop below normal, like it wants to stall.

It seems that, when the car is acting up, if I hit the gas lightly, like ease it down, it will stay runing. but if I try to aply "normle" presure it stalls. the big problem is this seem to be intermint. it seemed to go away this summer and now is back to doing it sometimes now that it is cold..

any ideas?
 

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Discussion Starter · #5 ·
robynhoods said:
when was the last lime that you tuned up your car
as in plugs, wires, cap, and roter? just before the cold wether hit. a few months ago. it also has a new ignition coil, fule pump and fule filter, alternator, O2 censor and water pump, all done within the last six months. this is why I am so stumped. it sounds like a secor to me but I have swaped out and checked all the ones I can think of that would efect air fule mixture on the car (O2, MAP, EGR) are there any little known sencors that I have not mentioned that may cause this problem?
 

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Discussion Starter · #7 ·
robynhoods said:
got me, i have no clue on what could be worng. Did you change the air filter
I tryed takeing the cover off the filter and the problem doesn't go away. the filter don't look to bad. any one know any thing about semsors that control air fule mix?

thanx.
 

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Diane said:
James92Scort said:
Anything related to temperature= check your thermostat and replace it if necessary.

It sounds like it's necessary.
James, sometimes I wonder if your cars are built on a different planet than ours. ;)
well it makes sense to me.

but if thats not the root of the problem at least he knows he has a new thermostat on it.
 

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This is a 1990 LX right? CFI engine? I don't think they have an airflow meter. (At least the CFI engines I had didn't) I had trouble with 2 of them showing the same symptom, and a test of the engine electronics gave me a code for the TPS voltage being too low. It turns out the end of the throttle shaft that fits into the sensor was corroded. This made it thinner and let the tps move to far back at idle sometimes. I found a good replacement shaft and all is OK now. I think the DC Idle motor could give you the same kind of failure too. You may want to pull the engine codes before going to much further, saves replacing good parts.
 
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