Steve

My oil pressure gage was pegged out for a long time. Then this past
summer I had a big overheat/boilover event when my crap plastic coolant
bottle developed a fracture. Anyway, after that the oil pressure gage
started to read correct again and has continued to do so since. Go figure.

Steve
http://xjeep.dyndns.org

Snow wrote:
> Go with a sensor, I had similar happen to my 93 XJ, it went to almost full
> travel when running, went two years with it like that (I slaved in an
> additional press. gauge to confirm the sending unit was bad, so wasn't in a
> rush to fix), then one day after my local garage having been working in the
> area (had them changed the valve cover gasket and filter adaptor orings with
> some additional work) the silly thing decided to work again. (could have
> been a piece of oring blocking the sensor). My 93 XJ still has me
> dumbfounded when it comes to displaying codes, it doesn't! or it doesn't
> like displaying them for me, but that's what "free code reading" shops are
> for :)
>
> Snow...
>
>
> "DougW" <post.replies@invalid.address> wrote in message
> news:W2Gef.10264$---.4005@dukeread07...
>
>>yzordderrex did pass the time by typing:
>>
>>>Doug, Will, thanks.
>>>
>>>So this morning I go outside, pop hood open, and wiggle wires around to
>>>the sensor. (I'm pretty sure it is the sensor. Just forward and above
>>>the filter) Get in and now check engine light still on but when I
>>>start I got 40 pounds of oil. Back in the house and leave a note for
>>>the kid that I'm taking her ride to work. Start the car back up and
>>>pressure goes back to 80 pounds. ----! Get to work ten minutes later
>>>and trying again to read the codes. No codes, but I notice that when I
>>>turn the key on the oil pressure gauge is at zero. Usually with key
>>>on it's pegged. So I start her up and pressure goes to about 40pounds,
>>>then about 5 seconds later it's pegged again.
>>
>>That's sounding more like a failed sensor or wiring. The sensors are
>>not too overpriced.
>>
>>--
>>DougW

Billy Ray

If you have a can of WD-40 handy try spraying all the ignition wiring,
coils, etc. If it makes a difference then you have a moisture problem.

If you stop by auto-Zone, Advanced Auto, etc they will lend you a DRB_II
code reader to see if any are showing up.

I am surprised that nothing shows on the odometer. There are apparently a
couple versions of the software that require different numbers and speeds of
cycling the ignition off-on. Did you try it 3,4,& 5 times? Did you allow
the odometer to show something briefly before the back cycle?

Can you hear or see any sparks jumping when the engine is idling and the
hood up?

Do we understand the Jeep ran fine up until it started raining?

Did she drive it through standing water? I had a Dodge Dart Sport that
would drench the distributor if I went through deep water at speed.

Have you asked the previous owner for input?


"Steve" <steve@xjeep.dyndns.org> wrote in message
news:PBKef.125104$Ph4.3835003@ursa-nb00s0.nbnet.nb.ca...
> If you fix the oil pressure sensor issue and still have rough idle, try a
> set of new ignition wires. Near as I can remember, every time I first
> noticed a set of wires had gone bad, it was always on a really wet day.
>
> Steve
> http://xjeep.dyndns.org
>
> yzordderrex@verizon.net wrote:
>> My daughter just bought a 00 Cherokee Sport with a straight six last
>> week from guy here in town. She called me from road and said her oil
>> pressure was way high. She brought it home and here is what we got.
>>
>> Oil pressure gauge is pegged up to 80 lbs with key on and motor either
>> running or not running. It runs rough at idle, and the check engine
>> light stays on. I tried the on/off on/off on/off on trick, but can't
>> get any codes out of the thing. Odometer doesn't display anything but
>> miles. No codes, no 'DONE' no nothing.
>>
>> Today was I think the first day it rained around here since she been
>> driving the thing, but I am reluctant to connect the rain to the
>> problem just yet.
>>
>> I'm kinda surprised no codes were displayed. Any ideas?
>>
>> regards,
>> Bob
>

Billy Ray

If you have a can of WD-40 handy try spraying all the ignition wiring,
coils, etc. If it makes a difference then you have a moisture problem.

If you stop by auto-Zone, Advanced Auto, etc they will lend you a DRB_II
code reader to see if any are showing up.

I am surprised that nothing shows on the odometer. There are apparently a
couple versions of the software that require different numbers and speeds of
cycling the ignition off-on. Did you try it 3,4,& 5 times? Did you allow
the odometer to show something briefly before the back cycle?

Can you hear or see any sparks jumping when the engine is idling and the
hood up?

Do we understand the Jeep ran fine up until it started raining?

Did she drive it through standing water? I had a Dodge Dart Sport that
would drench the distributor if I went through deep water at speed.

Have you asked the previous owner for input?


"Steve" <steve@xjeep.dyndns.org> wrote in message
news:PBKef.125104$Ph4.3835003@ursa-nb00s0.nbnet.nb.ca...
> If you fix the oil pressure sensor issue and still have rough idle, try a
> set of new ignition wires. Near as I can remember, every time I first
> noticed a set of wires had gone bad, it was always on a really wet day.
>
> Steve
> http://xjeep.dyndns.org
>
> yzordderrex@verizon.net wrote:
>> My daughter just bought a 00 Cherokee Sport with a straight six last
>> week from guy here in town. She called me from road and said her oil
>> pressure was way high. She brought it home and here is what we got.
>>
>> Oil pressure gauge is pegged up to 80 lbs with key on and motor either
>> running or not running. It runs rough at idle, and the check engine
>> light stays on. I tried the on/off on/off on/off on trick, but can't
>> get any codes out of the thing. Odometer doesn't display anything but
>> miles. No codes, no 'DONE' no nothing.
>>
>> Today was I think the first day it rained around here since she been
>> driving the thing, but I am reluctant to connect the rain to the
>> problem just yet.
>>
>> I'm kinda surprised no codes were displayed. Any ideas?
>>
>> regards,
>> Bob
>

Billy Ray

If you have a can of WD-40 handy try spraying all the ignition wiring,
coils, etc. If it makes a difference then you have a moisture problem.

If you stop by auto-Zone, Advanced Auto, etc they will lend you a DRB_II
code reader to see if any are showing up.

I am surprised that nothing shows on the odometer. There are apparently a
couple versions of the software that require different numbers and speeds of
cycling the ignition off-on. Did you try it 3,4,& 5 times? Did you allow
the odometer to show something briefly before the back cycle?

Can you hear or see any sparks jumping when the engine is idling and the
hood up?

Do we understand the Jeep ran fine up until it started raining?

Did she drive it through standing water? I had a Dodge Dart Sport that
would drench the distributor if I went through deep water at speed.

Have you asked the previous owner for input?


"Steve" <steve@xjeep.dyndns.org> wrote in message
news:PBKef.125104$Ph4.3835003@ursa-nb00s0.nbnet.nb.ca...
> If you fix the oil pressure sensor issue and still have rough idle, try a
> set of new ignition wires. Near as I can remember, every time I first
> noticed a set of wires had gone bad, it was always on a really wet day.
>
> Steve
> http://xjeep.dyndns.org
>
> yzordderrex@verizon.net wrote:
>> My daughter just bought a 00 Cherokee Sport with a straight six last
>> week from guy here in town. She called me from road and said her oil
>> pressure was way high. She brought it home and here is what we got.
>>
>> Oil pressure gauge is pegged up to 80 lbs with key on and motor either
>> running or not running. It runs rough at idle, and the check engine
>> light stays on. I tried the on/off on/off on/off on trick, but can't
>> get any codes out of the thing. Odometer doesn't display anything but
>> miles. No codes, no 'DONE' no nothing.
>>
>> Today was I think the first day it rained around here since she been
>> driving the thing, but I am reluctant to connect the rain to the
>> problem just yet.
>>
>> I'm kinda surprised no codes were displayed. Any ideas?
>>
>> regards,
>> Bob
>

Billy Ray

If you have a can of WD-40 handy try spraying all the ignition wiring,
coils, etc. If it makes a difference then you have a moisture problem.

Is it now in the garage or out in the rain?

If you stop by auto-Zone, Advanced Auto, etc they will lend you a DRB_II
code reader to see if any are showing up.

I am surprised that nothing shows on the odometer. There are apparently a
couple versions of the software that require different numbers and speeds of
cycling the ignition off-on. Did you try it 3,4,& 5 times? Did you allow
the odometer to show something briefly before the back cycle?

Can you hear or see any sparks jumping when the engine is idling and the
hood up?

Do we understand the Jeep ran fine up until it started raining?

Did she drive it through standing water? I had a Dodge Dart Sport that
would drench the distributor if I went through deep water at speed.

Have you asked the previous owner for input?


"Steve" <steve@xjeep.dyndns.org> wrote in message
news:PBKef.125104$Ph4.3835003@ursa-nb00s0.nbnet.nb.ca...
> If you fix the oil pressure sensor issue and still have rough idle, try a
> set of new ignition wires. Near as I can remember, every time I first
> noticed a set of wires had gone bad, it was always on a really wet day.
>
> Steve
> http://xjeep.dyndns.org
>
> yzordderrex@verizon.net wrote:
>> My daughter just bought a 00 Cherokee Sport with a straight six last
>> week from guy here in town. She called me from road and said her oil
>> pressure was way high. She brought it home and here is what we got.
>>
>> Oil pressure gauge is pegged up to 80 lbs with key on and motor either
>> running or not running. It runs rough at idle, and the check engine
>> light stays on. I tried the on/off on/off on/off on trick, but can't
>> get any codes out of the thing. Odometer doesn't display anything but
>> miles. No codes, no 'DONE' no nothing.
>>
>> Today was I think the first day it rained around here since she been
>> driving the thing, but I am reluctant to connect the rain to the
>> problem just yet.
>>
>> I'm kinda surprised no codes were displayed. Any ideas?
>>
>> regards,
>> Bob
>

Billy Ray

If you have a can of WD-40 handy try spraying all the ignition wiring,
coils, etc. If it makes a difference then you have a moisture problem.

Is it now in the garage or out in the rain?

If you stop by auto-Zone, Advanced Auto, etc they will lend you a DRB_II
code reader to see if any are showing up.

I am surprised that nothing shows on the odometer. There are apparently a
couple versions of the software that require different numbers and speeds of
cycling the ignition off-on. Did you try it 3,4,& 5 times? Did you allow
the odometer to show something briefly before the back cycle?

Can you hear or see any sparks jumping when the engine is idling and the
hood up?

Do we understand the Jeep ran fine up until it started raining?

Did she drive it through standing water? I had a Dodge Dart Sport that
would drench the distributor if I went through deep water at speed.

Have you asked the previous owner for input?


"Steve" <steve@xjeep.dyndns.org> wrote in message
news:PBKef.125104$Ph4.3835003@ursa-nb00s0.nbnet.nb.ca...
> If you fix the oil pressure sensor issue and still have rough idle, try a
> set of new ignition wires. Near as I can remember, every time I first
> noticed a set of wires had gone bad, it was always on a really wet day.
>
> Steve
> http://xjeep.dyndns.org
>
> yzordderrex@verizon.net wrote:
>> My daughter just bought a 00 Cherokee Sport with a straight six last
>> week from guy here in town. She called me from road and said her oil
>> pressure was way high. She brought it home and here is what we got.
>>
>> Oil pressure gauge is pegged up to 80 lbs with key on and motor either
>> running or not running. It runs rough at idle, and the check engine
>> light stays on. I tried the on/off on/off on/off on trick, but can't
>> get any codes out of the thing. Odometer doesn't display anything but
>> miles. No codes, no 'DONE' no nothing.
>>
>> Today was I think the first day it rained around here since she been
>> driving the thing, but I am reluctant to connect the rain to the
>> problem just yet.
>>
>> I'm kinda surprised no codes were displayed. Any ideas?
>>
>> regards,
>> Bob
>

Billy Ray

If you have a can of WD-40 handy try spraying all the ignition wiring,
coils, etc. If it makes a difference then you have a moisture problem.

Is it now in the garage or out in the rain?

If you stop by auto-Zone, Advanced Auto, etc they will lend you a DRB_II
code reader to see if any are showing up.

I am surprised that nothing shows on the odometer. There are apparently a
couple versions of the software that require different numbers and speeds of
cycling the ignition off-on. Did you try it 3,4,& 5 times? Did you allow
the odometer to show something briefly before the back cycle?

Can you hear or see any sparks jumping when the engine is idling and the
hood up?

Do we understand the Jeep ran fine up until it started raining?

Did she drive it through standing water? I had a Dodge Dart Sport that
would drench the distributor if I went through deep water at speed.

Have you asked the previous owner for input?


"Steve" <steve@xjeep.dyndns.org> wrote in message
news:PBKef.125104$Ph4.3835003@ursa-nb00s0.nbnet.nb.ca...
> If you fix the oil pressure sensor issue and still have rough idle, try a
> set of new ignition wires. Near as I can remember, every time I first
> noticed a set of wires had gone bad, it was always on a really wet day.
>
> Steve
> http://xjeep.dyndns.org
>
> yzordderrex@verizon.net wrote:
>> My daughter just bought a 00 Cherokee Sport with a straight six last
>> week from guy here in town. She called me from road and said her oil
>> pressure was way high. She brought it home and here is what we got.
>>
>> Oil pressure gauge is pegged up to 80 lbs with key on and motor either
>> running or not running. It runs rough at idle, and the check engine
>> light stays on. I tried the on/off on/off on/off on trick, but can't
>> get any codes out of the thing. Odometer doesn't display anything but
>> miles. No codes, no 'DONE' no nothing.
>>
>> Today was I think the first day it rained around here since she been
>> driving the thing, but I am reluctant to connect the rain to the
>> problem just yet.
>>
>> I'm kinda surprised no codes were displayed. Any ideas?
>>
>> regards,
>> Bob
>

yzordderrex@verizon.net

It was a broken plug that was causing the rough running and check
engine light. Not sure if the high oil pressure displayed was related
or an intermittent sensor or what. Daughter brought it back to her
mechanic and he admitted he must have broke plug somehow putting it in.
He ordered a pressure sensor but she said it's working ok no prob.

thanks,
Bob

yzordderrex@verizon.net

It was a broken plug that was causing the rough running and check
engine light. Not sure if the high oil pressure displayed was related
or an intermittent sensor or what. Daughter brought it back to her
mechanic and he admitted he must have broke plug somehow putting it in.
He ordered a pressure sensor but she said it's working ok no prob.

thanks,
Bob

yzordderrex@verizon.net

It was a broken plug that was causing the rough running and check
engine light. Not sure if the high oil pressure displayed was related
or an intermittent sensor or what. Daughter brought it back to her
mechanic and he admitted he must have broke plug somehow putting it in.
He ordered a pressure sensor but she said it's working ok no prob.

thanks,
Bob