'94 Ford Escort Idleing Rough and Stalling
Gene Bequette II
Does anyone have any Ideas on this:
I have a '94 Escort LX wagon, 1.9L, SOHC, with a distributor-less ignition
and 120k miles. A couple of months ago the car started idling rough.
Nothing too bad, you could just feel it miss every once and a while.
However, the problem has gotten much worse now. The car will only maintain
an idle if the A/C is on, and a rough one at that. Otherwise in neutral,
park, or drive the car idles very rough and soon dies without the A/C on.
To date I have replaced the: spark plugs and wires, air filter, breather,
fuel filter, throttle positioning sensor, and a few other things I cant
remember. I've run gallons of injector cleaner and octane boost through it.
Changed gas stations. I disconnected the plug wires, one at a time, from
the coil pack and they threw a health 3 or 4 inch spark (felt good too, but
I had to find out). I'm guessing at this point that its something to do
with the timing electrically. But I don't know if it could be the crank
position sensor, the EDIS module, the EEC-IV processor, all of them, some of
them, none of them, or maybe one of the other engine sensors. I can't tell
because I get no error codes on the dash.
Of course, now I think I hear the water pump chirping, must be time for a
new timing belt. Or, maybe that's part of the idling problem.
I would appreciate any help that anyone could give me on this. I like to do
things myself, but for this I think that I'm going to need a $100,000 test
stand to figure it out, something I don't have.
Thanks again,
Geno
muse...@northnet.org
it has a belt rather than a chain and have you tested the compression of
each cylinder? Are the valve clearances correct, are there any vacuum
leaks anywhere? O2 sensor been checked? Just to name a few.
Reynold
Bookman...@netscape.net
Stuart & Janet
the revs up which opens the throttle a bit, smoothing the idle and the IABV
is not active then which tends to send me to look there first. It's a five
minute job, remove ( two bolts and a connector) spray carb cleaner in the
valve bore and let it soak five minutes. Reinstall and hopefully the idle
will return to normal.
I'm fighting a bit of poor idle on my '91 1.9 litre too. It also has a flat
spot chug and buck around 50 -60 miles an hour. There was a TSB on the
throttle position sensor to rev it up to a '93 part # which I did but all
that happened is the bucking moved up a few MPH! I'm starting to look
askance at the EGR valve now. I'm going to be checking a few things this
weekend and if I find anything I'll post it here. At 185,000 km I can't say
the car owes me much so I can tolerate a few idiosyncrasies! StuK
--
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Gene Bequette II <cope...@prodigy.net> wrote in message
news:8qeam7$651k$1...@newssvr05-en0.news.prodigy.com...
GM
block the passages to test it. No EGR at idle.
- Make sure you have no vacuum leaks.
- Clean idle bypass.
- Clean throttle body.
- Check timing/
- Check compression.
- Check vacuum.
Gary
no...@my-deja.com
some experience on rough idle.
1. Have you replaced the battery lately, or has it discharged
completely? If so, you must let the computer re-learn the correct
throttle position. Your owner manual tells you how, or let me know and
I can tell you.
2. Do you have a scanner and manual. They are available for your car
for about $30. My scanner has a test to check each cylinder.
3. Don't forget the ignition wires. I have had to replace my wiring
twice so far with 80,000 miles on the car. Of course, in this case, I
was getting a "CHECK ENGINE LIGHT" signal.
Hope this helps some.
Norman no...@juno.com
In article <8qeam7$651k$1...@newssvr05-en0.news.prodigy.com>,
Sent via Deja.com http://www.deja.com/
Before you buy.
chuck
<cope...@prodigy.net> wrote:
>
>Does anyone have any Ideas on this:
>
>I have a '94 Escort LX wagon, 1.9L, SOHC, with a distributor-less ignition
>and 120k miles. A couple of months ago the car started idling rough.
>FUEL PUMP!!!!
CarlK14
>Does anyone have any Ideas on this:
>
>I have a '94 Escort LX wagon, 1.9L, SOHC, with a distributor-less ignition
>and 120k miles. A couple of months ago the car started idling rough.
>Nothing too bad, you could just feel it miss every once and a while.
>However, the problem has gotten much worse now. The car will only maintain
>an idle if the A/C is on, and a rough one at that. Otherwise in neutral,
>park, or drive the car idles very rough and soon dies without the A/C on.
>
>To date I have replaced the: spark plugs and wires, air filter, breather,
>fuel filter, throttle positioning sensor, and a few other things I cant
>remember. I've run gallons of injector cleaner and octane boost through it.
>Changed gas stations. I disconnected the plug wires, one at a time, from
>the coil pack and they threw a health 3 or 4 inch spark (felt good too, but
>I had to find out). I'm guessing at this point that its something to do
>with the timing electrically. But I don't know if it could be the crank
>position sensor, the EDIS module, the EEC-IV processor, all of them, some of
>them, none of them, or maybe one of the other engine sensors. I can't tell
>because I get no error codes on the dash.
>
>Of course, now I think I hear the water pump chirping, must be time for a
>new timing belt. Or, maybe that's part of the idling problem.
>
All the suggestions so far sound good, I would like to suggest that you look at
the vacuum system, I have a 93 'scort that had similar symptoms that turned out
to be caused by a failed connector in the vacuum system. The culpret was an
elbow connector that fits into the cylinder head cover. It is spongy rubber
and with time can split. If that is the case, then covering the split with
your thumb would immediately improve the idle.
no...@my-deja.com
Norman
article <20000922071544...@ng-fn1.aol.com>,
Geno
Thank you all for your input, as of today I've tried a few of your
suggestions and things have improved a little. I cleaned the air bypass
valve and the idle improved some. I have a feeling that it is a number of
problems. Most of which I don't have a lot of time for. I will be checking
the compression and the timing (I have to change the water pump anyway,
because it's chirping now) in the next few days. I'll probably end up
getting a scanner and a fuel pressure tester too.
I found no vacuum leaks and the EGR seems to be functioning properly. I
even reset the computer, but its still idling rough unless I turn on the
A/C. So, I told the wife to drive with the A/C or defrost on for the next
few days while I run my series of diagnostics on it. As for now, its
getting her to work OK as long as she doesn't let it idle for long periods.
Thanks again for all of your ideas, if I figure it out soon, I will let you
know what the culprit was.
Geno
Geno
Just wanted to let every one know what the cure was,
The throttle Body was so caked with black crap that it was having a major
effect on the engine performance. I had to take the throttle body off (a
major ordeal) and clean it with about 8 cans of throttle body cleaner. It
runs like a champ now, even has more power than I remember. I assume that
most of the crud came from the EGR and PCV. I can't emagine why they don't
make it any easier to clean that area. You'd think that they would know
that it would build up by introducing those gasses and vapors into the
intake system.
Oh well, I guess it keeps dealer's mechanics employed. Anyway, I'm glad I
did it myself it was my first real encounter with fuel injection, just wish
I had smaller hands. Makes me want to keep my '63 F100 a little longer.
Thanks for every ones ideas and help,
Geno
Original Message:..................
Does anyone have any Ideas on this:
I have a '94 Escort LX wagon, 1.9L, SOHC, with a distributor-less ignition
and 120k miles. A couple of months ago the car started idling rough.
Nothing too bad, you could just feel it miss every once and a while.
However, the problem has gotten much worse now. The car will only maintain
an idle if the A/C is on, and a rough one at that. Otherwise in neutral,
park, or drive the car idles very rough and soon dies without the A/C on.
To date I have replaced the: spark plugs and wires, air filter, breather,
fuel filter, throttle positioning sensor, and a few other things I cant
remember. I've run gallons of injector cleaner and octane boost through it.
Changed gas stations. I disconnected the plug wires, one at a time, from
the coil pack and they threw a health 3 or 4 inch spark (felt good too, but
I had to find out). I'm guessing at this point that its something to do
with the timing electrically. But I don't know if it could be the crank
position sensor, the EDIS module, the EEC-IV processor, all of them, some of
them, none of them, or maybe one of the other engine sensors. I can't tell
because I get no error codes on the dash.
Of course, now I think I hear the water pump chirping, must be time for a
new timing belt. Or, maybe that's part of the idling problem.
I would appreciate any help that anyone could give me on this. I like to do
Mr. Music
Check to make sure the black air flow (hose), top of engine does not
have a leak in it. (It is somewhat hard flexible plastic but they
have been know to deteriorate over time and cause problems such as
this.
On Thu, 21 Sep 2000 19:50:54 -0000, "Gene Bequette II"
<cope...@prodigy.net> decided to tell the world:
>
>Does anyone have any Ideas on this:
>
>I have a '94 Escort LX wagon, 1.9L, SOHC, with a distributor-less ignition
>and 120k miles. A couple of months ago the car started idling rough.
>Nothing too bad, you could just feel it miss every once and a while.
>However, the problem has gotten much worse now. The car will only maintain
>an idle if the A/C is on, and a rough one at that. Otherwise in neutral,
>park, or drive the car idles very rough and soon dies without the A/C on.
>
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