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Unread 01-13-2014, 01:32 AM   #1
Relax_Jimmy24
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2001 WJ 
 
Join Date: Jan 2010
Location: Carson CA
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Does this seem right??

This is my oil pressure when warm at idle.
But while driving around the oil pressure is at 50.
Just had a rebuilt like 2months ago.

image-250047427.jpg

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Unread 01-13-2014, 02:19 AM   #2
red2black00
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Mine runs just below 40 at idle and gets up around 50 or a little higher when driving and mine was rebuilt about a year ago.
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Unread 01-13-2014, 02:27 AM   #3
Relax_Jimmy24
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Yeah mine was like a lil less then 40 at idle
Before the rebuilt. Theres no noise at all everything runs great. Its just that it slowly goes down to about 20 at idle. And 50 driving .

What oil are you running?
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Unread 01-13-2014, 02:30 AM   #4
red2black00
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I use castrol gtx 10w-30 with a wix filter. Your oil pressure sending unit may be going bad that could be the reason it is dipping so low.
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Unread 01-13-2014, 02:35 AM   #5
red2black00
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What year is your wj?
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Unread 01-13-2014, 02:41 AM   #6
Relax_Jimmy24
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The oil pressure sensor/ switch is brand new from dealer.

2001 4.7L
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Unread 01-13-2014, 02:50 AM   #7
red2black00
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I didn't realize you have the 4.7 mine is a 4.0 maybe one of the v8 guys will chime in!
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Unread 01-13-2014, 03:52 AM   #8
Skater041930
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I have a 2001 grand limited 4.7 with a rebuilt engine with 10,000 miles I put on myself...had my sending unit replaced with my old engine and my pressure is the same exact way as yours. Never dipped that low with my origional engine. Used 5w30 at first until last oil change than went to 10w30. Seems the same for the most part. No problems / noises yet.
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Unread 01-13-2014, 10:37 AM   #9
Relax_Jimmy24
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I wonder why that is
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Unread 01-13-2014, 08:22 PM   #10
Skater041930
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Maybe it's 135,000 less miles on the engine lol
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Unread 01-15-2014, 12:41 AM   #11
Teflon916
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My oil pressure goes to 40 at idle and goes up to 50 while driving. I've driven a lot of older vehicles and that looks like normal oil pressure for an idling v8. It's my jeep that doesn't seem normal at 40... Maybe yours is more accurate. I wouldn't worry until it goes way way down.
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Unread 01-15-2014, 06:56 AM   #12
BIGBADWOLF
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People getting obsessed over oil pressure drives me nuts. What your seeing is normal. There are many variables that have an effect on pressure. Pressure in itself has nothing to do with protecting an engine. As long as you have oil FLOWING throughout the engine you have adequate lubrication. An oil pressure gage is a pi$$-poor method of monitoring lubrication efficiency....A flow meter would be required for that. Ignore that gage and enjoy the ride.
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Unread 01-15-2014, 10:11 AM   #13
Merc1973
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I have gone through 2 so far and just leave it unplugged so it doesn't "chime" at me anymore.
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Unread 01-15-2014, 10:58 AM   #14
Cirruslydakota
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You guys are worrying too much...
new-bitmap-image.jpg  
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Bear - 1999 Jeep Grand Cherokee Laredo - 250,000 Miles, BDS 2" lift, Overland rock rails, Dynomax cat back exhaust, 245/75/16 Kumho KL78's, Rebuilt 4.0 @ 244,000 miles.
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Unread 01-15-2014, 11:34 AM   #15
BasuraBlanco
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Wj

Quote:
Originally Posted by Cirruslydakota View Post
You guys are worrying too much...
I love it..
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2002 WJ 4.7 H.O.

"Its people like me that make people like you need medication."
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