Problems With 94 Cherokee Sport
08-02-2003, 10:25 PM
#1
Guest
Posts: n/a
Problems With 94 Cherokee Sport
Hello, I am new the group, so any advice is very much appreciated!!
I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
the second owner of the car and it runs great most of the time!
Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
that amount, the engine with just basically kill out and drop down to
nothing or die, and then I let off of the accelerator pedal and mash it
again and it will sometimes re-fire. I have also noticed the Jeep dying
at stop lights, sometimes when rolling up and sometimes when
accelerating away. I thought I might have had dirty fuel injectors, so I
used some fuel injector cleaner and that didn't help, so I assumed maybe
I had some water or moisture in my gas so I bought a bottle of gas dryer
to remove the water, the didn't work either, so I don't know what to do,
and I was thinking about maybe taking it to a mechanic or the dealership
that might could put it on a machine and watch it and see what might be
causing it, but didn't know if there was such a machine to do that. The
Jeep runs fine most of the time though, still very strong with 150,000
miles on it, but what fools me is that there isn't any check engine
lights on at all. Go figure!
As stated before any advice is appreciated.
I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
the second owner of the car and it runs great most of the time!
Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
that amount, the engine with just basically kill out and drop down to
nothing or die, and then I let off of the accelerator pedal and mash it
again and it will sometimes re-fire. I have also noticed the Jeep dying
at stop lights, sometimes when rolling up and sometimes when
accelerating away. I thought I might have had dirty fuel injectors, so I
used some fuel injector cleaner and that didn't help, so I assumed maybe
I had some water or moisture in my gas so I bought a bottle of gas dryer
to remove the water, the didn't work either, so I don't know what to do,
and I was thinking about maybe taking it to a mechanic or the dealership
that might could put it on a machine and watch it and see what might be
causing it, but didn't know if there was such a machine to do that. The
Jeep runs fine most of the time though, still very strong with 150,000
miles on it, but what fools me is that there isn't any check engine
lights on at all. Go figure!
As stated before any advice is appreciated.
08-02-2003, 11:36 PM
#2
Guest
Posts: n/a
Re: Problems With 94 Cherokee Sport
When the Crankshaft Position Sensor starts going bad, it can cause those
symptoms. Mounted next to the flywheel on the driver's side, near the top,
the sensor produces pulses off the flywheel that is the engine's master
timing signal. It costs $70-80 to buy and about an hour's labor to install.
Tight quarters makes the installation less than a fun job though.
Jerry
--
Jerry Bransford
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
news:3F2C72AC.5030305@charter.net...
> Hello, I am new the group, so any advice is very much appreciated!!
> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
> the second owner of the car and it runs great most of the time!
> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
> that amount, the engine with just basically kill out and drop down to
> nothing or die, and then I let off of the accelerator pedal and mash it
> again and it will sometimes re-fire. I have also noticed the Jeep dying
> at stop lights, sometimes when rolling up and sometimes when
> accelerating away. I thought I might have had dirty fuel injectors, so I
> used some fuel injector cleaner and that didn't help, so I assumed maybe
> I had some water or moisture in my gas so I bought a bottle of gas dryer
> to remove the water, the didn't work either, so I don't know what to do,
> and I was thinking about maybe taking it to a mechanic or the dealership
> that might could put it on a machine and watch it and see what might be
> causing it, but didn't know if there was such a machine to do that. The
> Jeep runs fine most of the time though, still very strong with 150,000
> miles on it, but what fools me is that there isn't any check engine
> lights on at all. Go figure!
> As stated before any advice is appreciated.
>
symptoms. Mounted next to the flywheel on the driver's side, near the top,
the sensor produces pulses off the flywheel that is the engine's master
timing signal. It costs $70-80 to buy and about an hour's labor to install.
Tight quarters makes the installation less than a fun job though.
Jerry
--
Jerry Bransford
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
news:3F2C72AC.5030305@charter.net...
> Hello, I am new the group, so any advice is very much appreciated!!
> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
> the second owner of the car and it runs great most of the time!
> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
> that amount, the engine with just basically kill out and drop down to
> nothing or die, and then I let off of the accelerator pedal and mash it
> again and it will sometimes re-fire. I have also noticed the Jeep dying
> at stop lights, sometimes when rolling up and sometimes when
> accelerating away. I thought I might have had dirty fuel injectors, so I
> used some fuel injector cleaner and that didn't help, so I assumed maybe
> I had some water or moisture in my gas so I bought a bottle of gas dryer
> to remove the water, the didn't work either, so I don't know what to do,
> and I was thinking about maybe taking it to a mechanic or the dealership
> that might could put it on a machine and watch it and see what might be
> causing it, but didn't know if there was such a machine to do that. The
> Jeep runs fine most of the time though, still very strong with 150,000
> miles on it, but what fools me is that there isn't any check engine
> lights on at all. Go figure!
> As stated before any advice is appreciated.
>
08-04-2003, 03:42 AM
#3
Guest
Posts: n/a
Re: Problems With 94 Cherokee Sport
Some times a bad or sticky EGR valve could make your car stall when letting
off revs. The EGR valve on the inline six is located on the left side of
engine (middle) and sould be closed when ideling and open at high revs. If
it stays open a little to long when reving down it could cause a stall.
However this should probably not affect you at 1500 RPM's so a CPS problem
might be the cause.
Odd-Inge
"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
news:3F2C72AC.5030305@charter.net...
> Hello, I am new the group, so any advice is very much appreciated!!
> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
> the second owner of the car and it runs great most of the time!
> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
> that amount, the engine with just basically kill out and drop down to
> nothing or die, and then I let off of the accelerator pedal and mash it
> again and it will sometimes re-fire. I have also noticed the Jeep dying
> at stop lights, sometimes when rolling up and sometimes when
> accelerating away. I thought I might have had dirty fuel injectors, so I
> used some fuel injector cleaner and that didn't help, so I assumed maybe
> I had some water or moisture in my gas so I bought a bottle of gas dryer
> to remove the water, the didn't work either, so I don't know what to do,
> and I was thinking about maybe taking it to a mechanic or the dealership
> that might could put it on a machine and watch it and see what might be
> causing it, but didn't know if there was such a machine to do that. The
> Jeep runs fine most of the time though, still very strong with 150,000
> miles on it, but what fools me is that there isn't any check engine
> lights on at all. Go figure!
> As stated before any advice is appreciated.
>
off revs. The EGR valve on the inline six is located on the left side of
engine (middle) and sould be closed when ideling and open at high revs. If
it stays open a little to long when reving down it could cause a stall.
However this should probably not affect you at 1500 RPM's so a CPS problem
might be the cause.
Odd-Inge
"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
news:3F2C72AC.5030305@charter.net...
> Hello, I am new the group, so any advice is very much appreciated!!
> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
> the second owner of the car and it runs great most of the time!
> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
> that amount, the engine with just basically kill out and drop down to
> nothing or die, and then I let off of the accelerator pedal and mash it
> again and it will sometimes re-fire. I have also noticed the Jeep dying
> at stop lights, sometimes when rolling up and sometimes when
> accelerating away. I thought I might have had dirty fuel injectors, so I
> used some fuel injector cleaner and that didn't help, so I assumed maybe
> I had some water or moisture in my gas so I bought a bottle of gas dryer
> to remove the water, the didn't work either, so I don't know what to do,
> and I was thinking about maybe taking it to a mechanic or the dealership
> that might could put it on a machine and watch it and see what might be
> causing it, but didn't know if there was such a machine to do that. The
> Jeep runs fine most of the time though, still very strong with 150,000
> miles on it, but what fools me is that there isn't any check engine
> lights on at all. Go figure!
> As stated before any advice is appreciated.
>
08-04-2003, 08:50 AM
#4
Guest
Posts: n/a
Re: Problems With 94 Cherokee Sport
In article <q7oXa.11048$os2.163247@news2.e.nsc.no>,
Odd-Inge Larsen <oddinge@invenia.no> wrote:
>Some times a bad or sticky EGR valve could make your car stall when letting
>off revs. The EGR valve on the inline six is located on the left side of
>engine (middle) and sould be closed when ideling and open at high revs. If
>it stays open a little to long when reving down it could cause a stall.
>
>However this should probably not affect you at 1500 RPM's so a CPS problem
>might be the cause.
I might be wrong here since I am new to Jeeps (3 weeks now). Isn't the
1994 4.0L a multi-port fuel injection system which does not have an EGR valve.
I have a 1994 4.0L YJ and my m-p fi does not have an EGR valve.
EGR valve = carb
>
>Odd-Inge
>
>
>"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
>news:3F2C72AC.5030305@charter.net...
>> Hello, I am new the group, so any advice is very much appreciated!!
>> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
>> the second owner of the car and it runs great most of the time!
>> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
>> that amount, the engine with just basically kill out and drop down to
>> nothing or die, and then I let off of the accelerator pedal and mash it
>> again and it will sometimes re-fire. I have also noticed the Jeep dying
>> at stop lights, sometimes when rolling up and sometimes when
>> accelerating away. I thought I might have had dirty fuel injectors, so I
>> used some fuel injector cleaner and that didn't help, so I assumed maybe
>> I had some water or moisture in my gas so I bought a bottle of gas dryer
>> to remove the water, the didn't work either, so I don't know what to do,
>> and I was thinking about maybe taking it to a mechanic or the dealership
>> that might could put it on a machine and watch it and see what might be
>> causing it, but didn't know if there was such a machine to do that. The
>> Jeep runs fine most of the time though, still very strong with 150,000
>> miles on it, but what fools me is that there isn't any check engine
>> lights on at all. Go figure!
>> As stated before any advice is appreciated.
>>
>
>
--
<html><form><input type crash></form></html>
nospam@zero.com Replace nospam with jetta to reply via e-mail
Odd-Inge Larsen <oddinge@invenia.no> wrote:
>Some times a bad or sticky EGR valve could make your car stall when letting
>off revs. The EGR valve on the inline six is located on the left side of
>engine (middle) and sould be closed when ideling and open at high revs. If
>it stays open a little to long when reving down it could cause a stall.
>
>However this should probably not affect you at 1500 RPM's so a CPS problem
>might be the cause.
I might be wrong here since I am new to Jeeps (3 weeks now). Isn't the
1994 4.0L a multi-port fuel injection system which does not have an EGR valve.
I have a 1994 4.0L YJ and my m-p fi does not have an EGR valve.
EGR valve = carb
>
>Odd-Inge
>
>
>"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
>news:3F2C72AC.5030305@charter.net...
>> Hello, I am new the group, so any advice is very much appreciated!!
>> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
>> the second owner of the car and it runs great most of the time!
>> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
>> that amount, the engine with just basically kill out and drop down to
>> nothing or die, and then I let off of the accelerator pedal and mash it
>> again and it will sometimes re-fire. I have also noticed the Jeep dying
>> at stop lights, sometimes when rolling up and sometimes when
>> accelerating away. I thought I might have had dirty fuel injectors, so I
>> used some fuel injector cleaner and that didn't help, so I assumed maybe
>> I had some water or moisture in my gas so I bought a bottle of gas dryer
>> to remove the water, the didn't work either, so I don't know what to do,
>> and I was thinking about maybe taking it to a mechanic or the dealership
>> that might could put it on a machine and watch it and see what might be
>> causing it, but didn't know if there was such a machine to do that. The
>> Jeep runs fine most of the time though, still very strong with 150,000
>> miles on it, but what fools me is that there isn't any check engine
>> lights on at all. Go figure!
>> As stated before any advice is appreciated.
>>
>
>
--
<html><form><input type crash></form></html>
nospam@zero.com Replace nospam with jetta to reply via e-mail
08-04-2003, 05:32 PM
#5
Guest
Posts: n/a
Re: Problems With 94 Cherokee Sport
Ahhh. didn't know that :-) I have a 1990. Live and learn....
odd-inge
"Peter Parker" <nospam@zero.com> wrote in message
news:3f2e56ab_2@nntp2.nac.net...
> In article <q7oXa.11048$os2.163247@news2.e.nsc.no>,
> Odd-Inge Larsen <oddinge@invenia.no> wrote:
> >Some times a bad or sticky EGR valve could make your car stall when
letting
> >off revs. The EGR valve on the inline six is located on the left side of
> >engine (middle) and sould be closed when ideling and open at high revs.
If
> >it stays open a little to long when reving down it could cause a stall.
> >
> >However this should probably not affect you at 1500 RPM's so a CPS
problem
> >might be the cause.
>
> I might be wrong here since I am new to Jeeps (3 weeks now). Isn't the
> 1994 4.0L a multi-port fuel injection system which does not have an EGR
valve.
> I have a 1994 4.0L YJ and my m-p fi does not have an EGR valve.
>
> EGR valve = carb
>
>
> >
> >Odd-Inge
> >
> >
> >"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
> >news:3F2C72AC.5030305@charter.net...
> >> Hello, I am new the group, so any advice is very much appreciated!!
> >> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
> >> the second owner of the car and it runs great most of the time!
> >> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
> >> that amount, the engine with just basically kill out and drop down to
> >> nothing or die, and then I let off of the accelerator pedal and mash it
> >> again and it will sometimes re-fire. I have also noticed the Jeep dying
> >> at stop lights, sometimes when rolling up and sometimes when
> >> accelerating away. I thought I might have had dirty fuel injectors, so
I
> >> used some fuel injector cleaner and that didn't help, so I assumed
maybe
> >> I had some water or moisture in my gas so I bought a bottle of gas
dryer
> >> to remove the water, the didn't work either, so I don't know what to
do,
> >> and I was thinking about maybe taking it to a mechanic or the
dealership
> >> that might could put it on a machine and watch it and see what might be
> >> causing it, but didn't know if there was such a machine to do that.
The
> >> Jeep runs fine most of the time though, still very strong with 150,000
> >> miles on it, but what fools me is that there isn't any check engine
> >> lights on at all. Go figure!
> >> As stated before any advice is appreciated.
> >>
> >
> >
>
>
> --
> <html><form><input type crash></form></html>
> nospam@zero.com Replace nospam with jetta to reply via e-mail
odd-inge
"Peter Parker" <nospam@zero.com> wrote in message
news:3f2e56ab_2@nntp2.nac.net...
> In article <q7oXa.11048$os2.163247@news2.e.nsc.no>,
> Odd-Inge Larsen <oddinge@invenia.no> wrote:
> >Some times a bad or sticky EGR valve could make your car stall when
letting
> >off revs. The EGR valve on the inline six is located on the left side of
> >engine (middle) and sould be closed when ideling and open at high revs.
If
> >it stays open a little to long when reving down it could cause a stall.
> >
> >However this should probably not affect you at 1500 RPM's so a CPS
problem
> >might be the cause.
>
> I might be wrong here since I am new to Jeeps (3 weeks now). Isn't the
> 1994 4.0L a multi-port fuel injection system which does not have an EGR
valve.
> I have a 1994 4.0L YJ and my m-p fi does not have an EGR valve.
>
> EGR valve = carb
>
>
> >
> >Odd-Inge
> >
> >
> >"DaryRon Steffey" <dstef1605db@charter.net> wrote in message
> >news:3F2C72AC.5030305@charter.net...
> >> Hello, I am new the group, so any advice is very much appreciated!!
> >> I have a 1994 Jeep Cherokee Sport 4.0L with 150,000 miles on it, I am
> >> the second owner of the car and it runs great most of the time!
> >> Sometimes while driving the Jeep doing 1500RPM's-or somewhere around
> >> that amount, the engine with just basically kill out and drop down to
> >> nothing or die, and then I let off of the accelerator pedal and mash it
> >> again and it will sometimes re-fire. I have also noticed the Jeep dying
> >> at stop lights, sometimes when rolling up and sometimes when
> >> accelerating away. I thought I might have had dirty fuel injectors, so
I
> >> used some fuel injector cleaner and that didn't help, so I assumed
maybe
> >> I had some water or moisture in my gas so I bought a bottle of gas
dryer
> >> to remove the water, the didn't work either, so I don't know what to
do,
> >> and I was thinking about maybe taking it to a mechanic or the
dealership
> >> that might could put it on a machine and watch it and see what might be
> >> causing it, but didn't know if there was such a machine to do that.
The
> >> Jeep runs fine most of the time though, still very strong with 150,000
> >> miles on it, but what fools me is that there isn't any check engine
> >> lights on at all. Go figure!
> >> As stated before any advice is appreciated.
> >>
> >
> >
>
>
> --
> <html><form><input type crash></form></html>
> nospam@zero.com Replace nospam with jetta to reply via e-mail
08-04-2003, 09:30 PM
#6
Guest
Posts: n/a
Re: Problems With 94 Cherokee Sport
On Mon, 4 Aug 2003 12:50:51 UTC nospam@zero.com (Peter Parker) wrote:
> In article <q7oXa.11048$os2.163247@news2.e.nsc.no>,
> Odd-Inge Larsen <oddinge@invenia.no> wrote:
> >Some times a bad or sticky EGR valve could make your car stall when letting
> >off revs. The EGR valve on the inline six is located on the left side of
> >engine (middle) and sould be closed when ideling and open at high revs. If
> >it stays open a little to long when reving down it could cause a stall.
> >
> >However this should probably not affect you at 1500 RPM's so a CPS problem
> >might be the cause.
>
> I might be wrong here since I am new to Jeeps (3 weeks now). Isn't the
> 1994 4.0L a multi-port fuel injection system which does not have an EGR valve.
> I have a 1994 4.0L YJ and my m-p fi does not have an EGR valve.
>
> EGR valve = carb
Some early 4.0 MPI systems had an EGR valve stuck on them. I know for
sure that the 87-89 4.0 in the XJ/MJ did and I think they removed it
when they went to the MOPAR MPI on the HO versions of the 4.0 in what?
91?
--
Will Honea <whonea@codenet.net>
> In article <q7oXa.11048$os2.163247@news2.e.nsc.no>,
> Odd-Inge Larsen <oddinge@invenia.no> wrote:
> >Some times a bad or sticky EGR valve could make your car stall when letting
> >off revs. The EGR valve on the inline six is located on the left side of
> >engine (middle) and sould be closed when ideling and open at high revs. If
> >it stays open a little to long when reving down it could cause a stall.
> >
> >However this should probably not affect you at 1500 RPM's so a CPS problem
> >might be the cause.
>
> I might be wrong here since I am new to Jeeps (3 weeks now). Isn't the
> 1994 4.0L a multi-port fuel injection system which does not have an EGR valve.
> I have a 1994 4.0L YJ and my m-p fi does not have an EGR valve.
>
> EGR valve = carb
Some early 4.0 MPI systems had an EGR valve stuck on them. I know for
sure that the 87-89 4.0 in the XJ/MJ did and I think they removed it
when they went to the MOPAR MPI on the HO versions of the 4.0 in what?
91?
--
Will Honea <whonea@codenet.net>
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