oil pressure on my TJ
 

Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
and just a couple of days ago it dropped to about 20 and it now varys with
rpm. It never did this before, has anybody ever seen this or is it somthing
worse that im in for? TJ with 106k miles, gonna change oil today(first
chance ive had since gauge prob) and make sure its not somthing in the
filter clogging or such. Just changed a lil over 1k agao.

Hope it clears up!

Steve

Re: oil pressure on my TJ
 

On 13 Dec 2003 01:37 PM, Steve Grammer posted the following:
> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi
> regularly and just a couple of days ago it dropped to about 20 and it
> now varys with rpm. It never did this before, has anybody ever seen
> this or is it somthing worse that im in for? TJ with 106k miles, gonna
> change oil today(first chance ive had since gauge prob) and make sure
> its not somthing in the filter clogging or such. Just changed a lil
> over 1k agao.

If the oil/filter change doesn't make any difference, try replacing the
oil pressure sending unit.

----------------------------------------------------
Del Rawlins- del@_kills_spammers_rawlinsbrothers.org
Remove _kills_spammers_ to reply via email.
Unofficial Bearhawk FAQ website:
http://www.rawlinsbrothers.org/bhfaq/

Re: oil pressure on my TJ
 

On 13 Dec 2003 01:37 PM, Steve Grammer posted the following:
> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi
> regularly and just a couple of days ago it dropped to about 20 and it
> now varys with rpm. It never did this before, has anybody ever seen
> this or is it somthing worse that im in for? TJ with 106k miles, gonna
> change oil today(first chance ive had since gauge prob) and make sure
> its not somthing in the filter clogging or such. Just changed a lil
> over 1k agao.

If the oil/filter change doesn't make any difference, try replacing the
oil pressure sending unit.

----------------------------------------------------
Del Rawlins- del@_kills_spammers_rawlinsbrothers.org
Remove _kills_spammers_ to reply via email.
Unofficial Bearhawk FAQ website:
http://www.rawlinsbrothers.org/bhfaq/

Re: oil pressure on my TJ
 

On 13 Dec 2003 01:37 PM, Steve Grammer posted the following:
> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi
> regularly and just a couple of days ago it dropped to about 20 and it
> now varys with rpm. It never did this before, has anybody ever seen
> this or is it somthing worse that im in for? TJ with 106k miles, gonna
> change oil today(first chance ive had since gauge prob) and make sure
> its not somthing in the filter clogging or such. Just changed a lil
> over 1k agao.

If the oil/filter change doesn't make any difference, try replacing the
oil pressure sending unit.

----------------------------------------------------
Del Rawlins- del@_kills_spammers_rawlinsbrothers.org
Remove _kills_spammers_ to reply via email.
Unofficial Bearhawk FAQ website:
http://www.rawlinsbrothers.org/bhfaq/

Re: oil pressure on my TJ
 

check the oil levels first, but I bet its your oil pressure sending unit going bad.
My 98 is on its 4th one already.



On Sat, 13 Dec 2003 22:37:03 GMT, "Steve Grammer" <stevncin@earthlink.net> wrote:

>>Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
>>and just a couple of days ago it dropped to about 20 and it now varys with
>>rpm. It never did this before, has anybody ever seen this or is it somthing
>>worse that im in for? TJ with 106k miles, gonna change oil today(first
>>chance ive had since gauge prob) and make sure its not somthing in the
>>filter clogging or such. Just changed a lil over 1k agao.
>>
>>Hope it clears up!
>>
>>Steve
>>

Re: oil pressure on my TJ
 

check the oil levels first, but I bet its your oil pressure sending unit going bad.
My 98 is on its 4th one already.



On Sat, 13 Dec 2003 22:37:03 GMT, "Steve Grammer" <stevncin@earthlink.net> wrote:

>>Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
>>and just a couple of days ago it dropped to about 20 and it now varys with
>>rpm. It never did this before, has anybody ever seen this or is it somthing
>>worse that im in for? TJ with 106k miles, gonna change oil today(first
>>chance ive had since gauge prob) and make sure its not somthing in the
>>filter clogging or such. Just changed a lil over 1k agao.
>>
>>Hope it clears up!
>>
>>Steve
>>

Re: oil pressure on my TJ
 

check the oil levels first, but I bet its your oil pressure sending unit going bad.
My 98 is on its 4th one already.



On Sat, 13 Dec 2003 22:37:03 GMT, "Steve Grammer" <stevncin@earthlink.net> wrote:

>>Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
>>and just a couple of days ago it dropped to about 20 and it now varys with
>>rpm. It never did this before, has anybody ever seen this or is it somthing
>>worse that im in for? TJ with 106k miles, gonna change oil today(first
>>chance ive had since gauge prob) and make sure its not somthing in the
>>filter clogging or such. Just changed a lil over 1k agao.
>>
>>Hope it clears up!
>>
>>Steve
>>

Re: oil pressure on my TJ
 

Steve,
I agree with Del's reply, to try the sending unit.
I had to replace mine a few months ago. The symptoms were a lot like you are
describing. Mine would drop so low I would get a beep and a check engine
light, but just for a second.
I got mine form AutoZone. I think it was about $35.
Be careful, They call it a pressure switch. That almost fooled me into not
going to get it from them. But it turned out to be a sending unit.

I've heard of these going bad many times.

Good luck.

Mark


"Steve Grammer" <stevncin@earthlink.net> wrote in message
news:jwMCb.1009$mC1.947@newsread1.news.atl.earthli nk.net...
> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi
regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it
somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!
>
> Steve
>
>

Re: oil pressure on my TJ
 

Steve,
I agree with Del's reply, to try the sending unit.
I had to replace mine a few months ago. The symptoms were a lot like you are
describing. Mine would drop so low I would get a beep and a check engine
light, but just for a second.
I got mine form AutoZone. I think it was about $35.
Be careful, They call it a pressure switch. That almost fooled me into not
going to get it from them. But it turned out to be a sending unit.

I've heard of these going bad many times.

Good luck.

Mark


"Steve Grammer" <stevncin@earthlink.net> wrote in message
news:jwMCb.1009$mC1.947@newsread1.news.atl.earthli nk.net...
> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi
regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it
somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!
>
> Steve
>
>

Re: oil pressure on my TJ
 

Steve,
I agree with Del's reply, to try the sending unit.
I had to replace mine a few months ago. The symptoms were a lot like you are
describing. Mine would drop so low I would get a beep and a check engine
light, but just for a second.
I got mine form AutoZone. I think it was about $35.
Be careful, They call it a pressure switch. That almost fooled me into not
going to get it from them. But it turned out to be a sending unit.

I've heard of these going bad many times.

Good luck.

Mark


"Steve Grammer" <stevncin@earthlink.net> wrote in message
news:jwMCb.1009$mC1.947@newsread1.news.atl.earthli nk.net...
> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi
regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it
somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!
>
> Steve
>
>

Re: oil pressure on my TJ
 

On Sat, 13 Dec 2003 22:37:03 UTC "Steve Grammer"
<stevncin@earthlink.net> wrote:

> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!

Check the pressure sender first - it's a common problem. That said, I
got identical sympthoms last summer when my oil pump started south on
me. It's normal for the pressure to follow RPM when the engine is
warm - on a hot day my well broken in 4.0 (160k miles) has a hot idle
(800 RPM) of 25 PSI or so, running 45-50 at highways speeds (2200 RPM
or so). After sitting for any length of time, it will start out on
the 75 PSI level then drop. When that level shifted down by at least
10PIS across the range I dropped the pan and changed the pump AFTER
confirming the pressure readout with a mechanical guage. It's a lot
more common for the sender to fail than for a pump to suddenly go bad
on you.


--
Will Honea <whonea@codenet.net>

Re: oil pressure on my TJ
 

On Sat, 13 Dec 2003 22:37:03 UTC "Steve Grammer"
<stevncin@earthlink.net> wrote:

> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!

Check the pressure sender first - it's a common problem. That said, I
got identical sympthoms last summer when my oil pump started south on
me. It's normal for the pressure to follow RPM when the engine is
warm - on a hot day my well broken in 4.0 (160k miles) has a hot idle
(800 RPM) of 25 PSI or so, running 45-50 at highways speeds (2200 RPM
or so). After sitting for any length of time, it will start out on
the 75 PSI level then drop. When that level shifted down by at least
10PIS across the range I dropped the pan and changed the pump AFTER
confirming the pressure readout with a mechanical guage. It's a lot
more common for the sender to fail than for a pump to suddenly go bad
on you.


--
Will Honea <whonea@codenet.net>

Re: oil pressure on my TJ
 

On Sat, 13 Dec 2003 22:37:03 UTC "Steve Grammer"
<stevncin@earthlink.net> wrote:

> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!

Check the pressure sender first - it's a common problem. That said, I
got identical sympthoms last summer when my oil pump started south on
me. It's normal for the pressure to follow RPM when the engine is
warm - on a hot day my well broken in 4.0 (160k miles) has a hot idle
(800 RPM) of 25 PSI or so, running 45-50 at highways speeds (2200 RPM
or so). After sitting for any length of time, it will start out on
the 75 PSI level then drop. When that level shifted down by at least
10PIS across the range I dropped the pan and changed the pump AFTER
confirming the pressure readout with a mechanical guage. It's a lot
more common for the sender to fail than for a pump to suddenly go bad
on you.


--
Will Honea <whonea@codenet.net>

Re: oil pressure on my TJ
 

spec is 10 psi+ at idle
bad sending unit????

Steve Grammer wrote:

> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!
>
> Steve

Re: oil pressure on my TJ
 

spec is 10 psi+ at idle
bad sending unit????

Steve Grammer wrote:

> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!
>
> Steve

Re: oil pressure on my TJ
 

spec is 10 psi+ at idle
bad sending unit????

Steve Grammer wrote:

> Last week my 97 TJsport oil pressure gauge showed a lil ove 40psi regularly
> and just a couple of days ago it dropped to about 20 and it now varys with
> rpm. It never did this before, has anybody ever seen this or is it somthing
> worse that im in for? TJ with 106k miles, gonna change oil today(first
> chance ive had since gauge prob) and make sure its not somthing in the
> filter clogging or such. Just changed a lil over 1k agao.
>
> Hope it clears up!
>
> Steve