Should my oil pressure be doing this?!?

Fergie · 09-19-2003, 08:49 PM

When my Jeep is warmed up, the oil pressure gauge has been working kind of funny. At idle, or no gas, the pressure is right around 40psi. When I step on the gas, it goes to around 60-80psi, depending on how hard I am accelerating. What is the deal?

The Jeep is a 1995, 4.0L, AW-4, 231. I just recently did a full gauge swap, but I don't think that changing the oil pressure sensor would have made this happen. Please help me out, as I don't know if this is serious or not. The oil level is fine, and the vehicle is running properly. Thanks in advance.

Fergie

the_iodine · 09-19-2003, 09:04 PM

i dunno, but my oil pressure guage is always maxed out.

Big Bondi · 09-19-2003, 09:17 PM

Quote:

-=- originally posted by Fergie -=-
When my Jeep is warmed up, the oil pressure gauge has been working kind of funny. At idle, or no gas, the pressure is right around 40psi. When I step on the gas, it goes to around 60-80psi, depending on how hard I am accelerating. What is the deal?

The Jeep is a 1995, 4.0L, AW-4, 231. I just recently did a full gauge swap, but I don't think that changing the oil pressure sensor would have made this happen. Please help me out, as I don't know if this is serious or not. The oil level is fine, and the vehicle is running properly. Thanks in advance.

Fergie

thats exactly how mine acts, its normal. iw ouldnt worry unless it drops under 40. that means oil leak

Quote:

-=- originally posted by the_iodine -=-
i dunno, but my oil pressure guage is always maxed out.

i dont kow what that means, but if the guage is function properly (i doubt it is) id imagine thats bad.

czb83 · 09-19-2003, 09:40 PM

my pressure is usually just above the quarter mark, when i press the gas it goes up to 40 and its not leaking oil.

3LTReilly · 09-19-2003, 10:18 PM

That oil pressure is normal for a cold engine. When you say the engine is warm, how warm is it? The oil takes longer than the water jacket to warm up. My pressure is similar to czb83's pressure, which is normal for the 4.0.

Big Bondi · 09-19-2003, 10:18 PM

ok im may be remembering my gauge wrong. mine sits around 1/4 and goes up to about 3/4. so i may just have the numbers wrong, its been a long day...

Chris in VA · 09-19-2003, 10:46 PM

People always freak out over fluctuating oil pressure. Never ceases to amaze me.

Big Bondi · 09-19-2003, 11:01 PM

from now on i just gonna say:

If its not dropping to the 1st 1/4 of the gauge dont worry. the "check guages" light will go on if thers a problom

09-19-2003, 08:49 PM	#1
Fergie Registered Join Date: Jan 2003 Location: PDR, CA Posts: 1,035 Thanks: 0 Thanked 0 Times in 0 Posts	Should my oil pressure be doing this?!? When my Jeep is warmed up, the oil pressure gauge has been working kind of funny. At idle, or no gas, the pressure is right around 40psi. When I step on the gas, it goes to around 60-80psi, depending on how hard I am accelerating. What is the deal? The Jeep is a 1995, 4.0L, AW-4, 231. I just recently did a full gauge swap, but I don't think that changing the oil pressure sensor would have made this happen. Please help me out, as I don't know if this is serious or not. The oil level is fine, and the vehicle is running properly. Thanks in advance. Fergie

09-19-2003, 10:18 PM	#5
3LTReilly Registered Join Date: Oct 2000 Location: The North Country, NY Posts: 234 Thanks: 0 Thanked 0 Times in 0 Posts	That oil pressure is normal for a cold engine. When you say the engine is warm, how warm is it? The oil takes longer than the water jacket to warm up. My pressure is similar to czb83's pressure, which is normal for the 4.0. __________________ Bernie '88 XJ 4.0 (bored .060"), 5spd, 245/70R16 Bridgestone Dueler A/Ts, Mickey Thompson Classic IIs, Old Man EMU Suspension, Crane 753901 cam, Accurate Power big valve HO head, Rusty's 2.5" exhaust, Mike Leach Headers, 24lbs FMS injectors, Double eletric fan, Open system with 3 row radiator, 3.73 gears

09-19-2003, 10:18 PM	#6
Big Bondi Registered Join Date: Aug 2002 Location: Amherst (Buffalo), NY Posts: 1,844 Thanks: 0 Thanked 0 Times in 0 Posts	ok im may be remembering my gauge wrong. mine sits around 1/4 and goes up to about 3/4. so i may just have the numbers wrong, its been a long day... __________________ -Craig [GLOW=red]i have no jeep...[/GLOW]

09-19-2003, 10:46 PM	#7
Chris in VA Registered Join Date: Oct 2001 Location: Winchester VA Posts: 6,868 Thanks: 0 Thanked 0 Times in 0 Posts	People always freak out over fluctuating oil pressure. Never ceases to amaze me. __________________ 94 XJ Country NP231 AW4, 145k miles Cooper Discoverer ST/AR767, front towhook, PIAA 40's and Hidden Hitch. 1.5" budget boost 10/08

09-19-2003, 11:01 PM	#8
Big Bondi Registered Join Date: Aug 2002 Location: Amherst (Buffalo), NY Posts: 1,844 Thanks: 0 Thanked 0 Times in 0 Posts	from now on i just gonna say: If its not dropping to the 1st 1/4 of the gauge dont worry. the "check guages" light will go on if thers a problom __________________ -Craig [GLOW=red]i have no jeep...[/GLOW]

09-19-2003, 09:04 PM	#2
the_iodine Registered Join Date: Sep 2002 Location: WA Posts: 1,643 Thanks: 0 Thanked 0 Times in 0 Posts	i dunno, but my oil pressure guage is always maxed out.

09-19-2003, 09:40 PM	#4
czb83 Registered Join Date: Mar 2003 Location: Lafayette, LA Posts: 389 Thanks: 0 Thanked 0 Times in 0 Posts	my pressure is usually just above the quarter mark, when i press the gas it goes up to 40 and its not leaking oil.

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