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Old 03-16-2005, 10:01   #1 (permalink)
jeremyal
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1992 Escort problem

Hi,

My girlfriend's '92 Escort (engine is a '91 1.9L with about 150k)
exhibits some strange behavior after driving for about 15 minutes or more.
It idles and accelerates fine for a while and then there is an almost
complete power loss, but the car never actually stalls. It just gets worse
and worse until you can barely keep it going 5 mph. It kind of chugs and
jerks and will sometimes backfire if you give it a lot of gas. It will
continue to do this indefinitely, but if you shut the car off just for a
second, it will start right back up and run perfectly for another 15 minutes
or so and then do it again. We replaced the fuel pump a while ago and
measured good fuel pressure and the car is not throwing any codes. I'm just
guessing that the problem is something electronic since shutting the car off
sort of "resets" the problem for a short time.

Any ideas on where I should start?

Thanks,
Jeremy


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Old 03-16-2005, 11:01   #2 (permalink)
sleepdog@optonline.net
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Re: 1992 Escort problem

No codes thrown in KOEO or KOER mode? Not even a lean code? Nothing?

Maybe something is triggering your car's computer to go into "limp
home" mode.

Also worth checking that the EGR system and the IAC valve are
functioning correctly.

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Old 03-16-2005, 11:01   #3 (permalink)
pick one
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Re: 1992 Escort problem

What was the fuel pressure? Have you tested fuel pressure when the problem
happens? Install the fuel pressure gauge tape it to the windshield and drive the
car. Watch the pressure while the car is loosing power, I'll bet it drops.
"jeremyal" <jeremyalREMOVE@verizon.net> wrote in message
news:2JZZd.8878$Z07.2071@trnddc02...
> Hi,
>
> My girlfriend's '92 Escort (engine is a '91 1.9L with about 150k) exhibits
> some strange behavior after driving for about 15 minutes or more. It idles and
> accelerates fine for a while and then there is an almost complete power loss,
> but the car never actually stalls. It just gets worse and worse until you can
> barely keep it going 5 mph. It kind of chugs and jerks and will sometimes
> backfire if you give it a lot of gas. It will continue to do this
> indefinitely, but if you shut the car off just for a second, it will start
> right back up and run perfectly for another 15 minutes or so and then do it
> again. We replaced the fuel pump a while ago and measured good fuel pressure
> and the car is not throwing any codes. I'm just guessing that the problem is
> something electronic since shutting the car off sort of "resets" the problem
> for a short time.
>
> Any ideas on where I should start?
>
> Thanks,
> Jeremy
>



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Old 03-16-2005, 17:01   #4 (permalink)
pickone@kato.com
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Re: 1992 Escort problem

On 16 Mar 2005 10:17:12 -0800, sleepdog@optonline.net wrote:

>No codes thrown in KOEO or KOER mode? Not even a lean code? Nothing?
>
>Maybe something is triggering your car's computer to go into "limp
>home" mode.
>
>Also worth checking that the EGR system and the IAC valve are
>functioning correctly.


lmfao
wheres the mil lite
lmfao
better stay in usa
you wont make the cut here

hurc ast
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Old 03-17-2005, 15:01   #5 (permalink)
scott_z500@my-deja.com
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Re: 1992 Escort problem

When was the last time the MAF or IAC was cleaned?
How about checking for vacuum leaks?
How about checking the TPS?
How about doing some research first, then do some basic tests before
posting?

I'm guessing that the car has not been properly maintained and has
multiple (but probably small) problems.

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