That happened to me one time in my Ram and my bud said check the filter
because the sending unit checked out.
I pulled the filter and cut it apart and found that the paper, yes paper
filter material had collapsed. I will never use FRAM filters again, not
even their high end ones. I guess any filter can fail.

HarryS

"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:YZAyd.7942$wi2.4504@newssvr11.news.prodigy.co m...
> Never would have thought of that.
>
> Mike Romain wrote:
>
>> I would be suspicious of a failed filter. If the filter fails
>> internally, the oil pressure spikes and the bypass valve shunts it past
>> the filter.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>>
>
> --
> __________________________________________________ _________
> tw
>
> 71 Bill Stroppe Baja Bronco
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________

 

That happened to me one time in my Ram and my bud said check the filter
because the sending unit checked out.
I pulled the filter and cut it apart and found that the paper, yes paper
filter material had collapsed. I will never use FRAM filters again, not
even their high end ones. I guess any filter can fail.

HarryS

"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:YZAyd.7942$wi2.4504@newssvr11.news.prodigy.co m...
> Never would have thought of that.
>
> Mike Romain wrote:
>
>> I would be suspicious of a failed filter. If the filter fails
>> internally, the oil pressure spikes and the bypass valve shunts it past
>> the filter.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>>
>
> --
> __________________________________________________ _________
> tw
>
> 71 Bill Stroppe Baja Bronco
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________

 

That happened to me one time in my Ram and my bud said check the filter
because the sending unit checked out.
I pulled the filter and cut it apart and found that the paper, yes paper
filter material had collapsed. I will never use FRAM filters again, not
even their high end ones. I guess any filter can fail.

HarryS

"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:YZAyd.7942$wi2.4504@newssvr11.news.prodigy.co m...
> Never would have thought of that.
>
> Mike Romain wrote:
>
>> I would be suspicious of a failed filter. If the filter fails
>> internally, the oil pressure spikes and the bypass valve shunts it past
>> the filter.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>>
>
> --
> __________________________________________________ _________
> tw
>
> 71 Bill Stroppe Baja Bronco
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________

 

I wouldn't worry if this is a single event kind of problem. It sounds like
the pressure went up because the oil was thick due to the cold. If the
pressure remains high when the weather warms, then start to look for causes.

You did not say what the temps were outside, but if they were so low as to
drive the oil pressure up, then I woulud suggest switching to 5w30 or 0w30
for winter, then back to 10w30 or 10w40 for summer.




"Tirya" <tirya@spamfree.addy> wrote in message
news:rMmdncMy_dIh-lfcRVn-3w@comcast.com...
> Quick question for y'all.
>
> '99 TJ Sahara, 128K miles, no major engine repairs yet except for the
> exhaust manifold. Last oil change was about a month ago, with synthetic
> 5W30.
>
> We got hit with the cold today, and on the drive home from my
> mother-in-law's, I saw that the oil pressure gauge was at 80. It normally
> runs the 20-60 range. The engine seemed to warm up quicker than it
usually
> did (but then it had been driven for 2 hours on the way up, and only sat
for
> about 3.5 hours before we headed home). When I took off the gas, the
> pressure gauge came down to 60. As we continued driving, it slowly crept
> down, so by the time we got home half an hour later, it was at 60 at 2000
> RPM, and 40 at idle. The engine temp stayed at 210.
>
> Some quick research showed that this is probably the oil sending unit, but
> the fact that the pressure gauge dropped over the course of the drive home
> has me wondering - if it were a bad sending unit, wouldn't it have stayed
at
> 80?
>
> Thanks for any thoughts or recommendations.
>
> Tirya
> --
> TDC Inca Jeeper
> A girl and her Jeep... it's a beautiful thing...
>
>

 

I wouldn't worry if this is a single event kind of problem. It sounds like
the pressure went up because the oil was thick due to the cold. If the
pressure remains high when the weather warms, then start to look for causes.

You did not say what the temps were outside, but if they were so low as to
drive the oil pressure up, then I woulud suggest switching to 5w30 or 0w30
for winter, then back to 10w30 or 10w40 for summer.




"Tirya" <tirya@spamfree.addy> wrote in message
news:rMmdncMy_dIh-lfcRVn-3w@comcast.com...
> Quick question for y'all.
>
> '99 TJ Sahara, 128K miles, no major engine repairs yet except for the
> exhaust manifold. Last oil change was about a month ago, with synthetic
> 5W30.
>
> We got hit with the cold today, and on the drive home from my
> mother-in-law's, I saw that the oil pressure gauge was at 80. It normally
> runs the 20-60 range. The engine seemed to warm up quicker than it
usually
> did (but then it had been driven for 2 hours on the way up, and only sat
for
> about 3.5 hours before we headed home). When I took off the gas, the
> pressure gauge came down to 60. As we continued driving, it slowly crept
> down, so by the time we got home half an hour later, it was at 60 at 2000
> RPM, and 40 at idle. The engine temp stayed at 210.
>
> Some quick research showed that this is probably the oil sending unit, but
> the fact that the pressure gauge dropped over the course of the drive home
> has me wondering - if it were a bad sending unit, wouldn't it have stayed
at
> 80?
>
> Thanks for any thoughts or recommendations.
>
> Tirya
> --
> TDC Inca Jeeper
> A girl and her Jeep... it's a beautiful thing...
>
>

 

I wouldn't worry if this is a single event kind of problem. It sounds like
the pressure went up because the oil was thick due to the cold. If the
pressure remains high when the weather warms, then start to look for causes.

You did not say what the temps were outside, but if they were so low as to
drive the oil pressure up, then I woulud suggest switching to 5w30 or 0w30
for winter, then back to 10w30 or 10w40 for summer.




"Tirya" <tirya@spamfree.addy> wrote in message
news:rMmdncMy_dIh-lfcRVn-3w@comcast.com...
> Quick question for y'all.
>
> '99 TJ Sahara, 128K miles, no major engine repairs yet except for the
> exhaust manifold. Last oil change was about a month ago, with synthetic
> 5W30.
>
> We got hit with the cold today, and on the drive home from my
> mother-in-law's, I saw that the oil pressure gauge was at 80. It normally
> runs the 20-60 range. The engine seemed to warm up quicker than it
usually
> did (but then it had been driven for 2 hours on the way up, and only sat
for
> about 3.5 hours before we headed home). When I took off the gas, the
> pressure gauge came down to 60. As we continued driving, it slowly crept
> down, so by the time we got home half an hour later, it was at 60 at 2000
> RPM, and 40 at idle. The engine temp stayed at 210.
>
> Some quick research showed that this is probably the oil sending unit, but
> the fact that the pressure gauge dropped over the course of the drive home
> has me wondering - if it were a bad sending unit, wouldn't it have stayed
at
> 80?
>
> Thanks for any thoughts or recommendations.
>
> Tirya
> --
> TDC Inca Jeeper
> A girl and her Jeep... it's a beautiful thing...
>
>

 

Hi Tirya,
I'm betting you have a short in the wire leading to your oil
sending unit. I've never heard of the unit failing, and reading high.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Tirya wrote:
>
> Quick question for y'all.
>
> '99 TJ Sahara, 128K miles, no major engine repairs yet except for the
> exhaust manifold. Last oil change was about a month ago, with synthetic
> 5W30.
>
> We got hit with the cold today, and on the drive home from my
> mother-in-law's, I saw that the oil pressure gauge was at 80. It normally
> runs the 20-60 range. The engine seemed to warm up quicker than it usually
> did (but then it had been driven for 2 hours on the way up, and only sat for
> about 3.5 hours before we headed home). When I took off the gas, the
> pressure gauge came down to 60. As we continued driving, it slowly crept
> down, so by the time we got home half an hour later, it was at 60 at 2000
> RPM, and 40 at idle. The engine temp stayed at 210.
>
> Some quick research showed that this is probably the oil sending unit, but
> the fact that the pressure gauge dropped over the course of the drive home
> has me wondering - if it were a bad sending unit, wouldn't it have stayed at
> 80?
>
> Thanks for any thoughts or recommendations.
>
> Tirya
> --
> TDC Inca Jeeper
> A girl and her Jeep... it's a beautiful thing...

 

Hi Tirya,
I'm betting you have a short in the wire leading to your oil
sending unit. I've never heard of the unit failing, and reading high.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Tirya wrote:
>
> Quick question for y'all.
>
> '99 TJ Sahara, 128K miles, no major engine repairs yet except for the
> exhaust manifold. Last oil change was about a month ago, with synthetic
> 5W30.
>
> We got hit with the cold today, and on the drive home from my
> mother-in-law's, I saw that the oil pressure gauge was at 80. It normally
> runs the 20-60 range. The engine seemed to warm up quicker than it usually
> did (but then it had been driven for 2 hours on the way up, and only sat for
> about 3.5 hours before we headed home). When I took off the gas, the
> pressure gauge came down to 60. As we continued driving, it slowly crept
> down, so by the time we got home half an hour later, it was at 60 at 2000
> RPM, and 40 at idle. The engine temp stayed at 210.
>
> Some quick research showed that this is probably the oil sending unit, but
> the fact that the pressure gauge dropped over the course of the drive home
> has me wondering - if it were a bad sending unit, wouldn't it have stayed at
> 80?
>
> Thanks for any thoughts or recommendations.
>
> Tirya
> --
> TDC Inca Jeeper
> A girl and her Jeep... it's a beautiful thing...

 

Hi Tirya,
I'm betting you have a short in the wire leading to your oil
sending unit. I've never heard of the unit failing, and reading high.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Tirya wrote:
>
> Quick question for y'all.
>
> '99 TJ Sahara, 128K miles, no major engine repairs yet except for the
> exhaust manifold. Last oil change was about a month ago, with synthetic
> 5W30.
>
> We got hit with the cold today, and on the drive home from my
> mother-in-law's, I saw that the oil pressure gauge was at 80. It normally
> runs the 20-60 range. The engine seemed to warm up quicker than it usually
> did (but then it had been driven for 2 hours on the way up, and only sat for
> about 3.5 hours before we headed home). When I took off the gas, the
> pressure gauge came down to 60. As we continued driving, it slowly crept
> down, so by the time we got home half an hour later, it was at 60 at 2000
> RPM, and 40 at idle. The engine temp stayed at 210.
>
> Some quick research showed that this is probably the oil sending unit, but
> the fact that the pressure gauge dropped over the course of the drive home
> has me wondering - if it were a bad sending unit, wouldn't it have stayed at
> 80?
>
> Thanks for any thoughts or recommendations.
>
> Tirya
> --
> TDC Inca Jeeper
> A girl and her Jeep... it's a beautiful thing...

 

> I've never heard of the unit failing, and reading high.

When our '95 Cherokee sender failed it pegged the needle reading high.