Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum > Oil pressure issue

Join Wrangler Forum Today


Thread: Oil pressure issue Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
05-24-2013 11:27 AM
Missed Again
More oil pressure problems

"red "Check gauges" light was lit up. The oil pressure gauge was at 0"

1997 Jeep is new to me with 130,000 miles. Runs great except for the oil pressure dropping to 0 at idle after warm-up to operating temp. Dip stick shows the engine has oil to the "safe" mark. Replaced the oil pressure unit (with factory unit) but the problems continues. I did the instrument test and all gauges and lights work correctly.

Someone suggested changing the oil to 30 weight given the high mileage but that didn't stop the problem. Another suggested dropping the oil pan and cleaning the screen. Have not done that yet. Any other ideas/suggestions would be appreciated.
05-23-2013 01:12 PM
yoopone Absolutely spend the extra money at the dealer and buy OEM. Went hrough 3 Autozone units before I got smart and went to my dealer. Has been working correctly ever since.
05-23-2013 11:59 AM
Atthehop
Quote:
Originally Posted by Enemy View Post
Anyone got a part # for the sending unit? I found one at autozone but it's $45.99
Spend your money at the dealer for a OEM, I will only buy electrical parts from the dealer. Auto part stores sell a lot of Chinese crap.
05-23-2013 10:18 AM
All Terrain JK
Quote:
Originally Posted by Enemy View Post
Anyone got a part # for the sending unit? I found one at autozone but it's $45.99
I had the sending units fail on mine and my son's TJs. In both cases I purchased and installed an after market mechanical gauge. They are cheaper and more reliable. On my son's we put a dab of silicone under the needle of the factory gauge at 50psi to avoid the "dead" look.
05-23-2013 09:38 AM
Enemy Anyone got a part # for the sending unit? I found one at autozone but it's $45.99
04-29-2013 08:34 PM
Enemy Thanks for he input guys.
04-29-2013 07:39 PM
Jaxon1023 Mine does the samething. I need to change the sending unit but I check and change my oil religiously so I know the gauge is full of it when it does it lol.
04-29-2013 07:30 PM
jickey Mine was doing the exact same thing. I changed the sending unit and it's worked fine ever since. Not expensive at all - oil, filter, and sending unit together was exactly 100 bucks at Auto Zone.
04-29-2013 06:11 PM
kfdjason7620 I would look into a new sending unit. Its right beside the oil filter on my 2000 4.0. I picked one up from Napa about 4 years ago and its need fine ever since. If I remember correctly, it was less than $30
04-29-2013 05:28 PM
Enemy
Quote:
Originally Posted by kfdjason7620 View Post
Hold the odometer reset and turn the key to the on position. All of the gauges and lights will go through a self check. You will be able to check to see if the oil pressure needle is sticking
Went out and did this and all the gauges including the OP moved. Now it didn't go all RR way to 80 but it did make it to about 60. After I started it and watched the gauge, at idle I was at about 15-17 then slowly crept down to 10-13 Drove it around the block and it was at near 40.
04-29-2013 05:07 PM
kfdjason7620 Hold the odometer reset and turn the key to the on position. All of the gauges and lights will go through a self check. You will be able to check to see if the oil pressure needle is sticking
04-29-2013 05:02 PM
kfdjason7620 The oil pressure sending unit could be going bad. Mine did the exact opposite. It pegged high at idle and actually dropped down when the rpms increased
04-29-2013 04:59 PM
Enemy
Oil pressure issue

Driving home after work today I came to a complete stop at a red light and I heard a loud "beep". I looked down at the gauges and saw the red "Check gauges" light was lit up. The oil pressure gauge was at 0, I didn't hear any knocking or taping sounds. Light turns green and I let out the clutch and start moving, as the RPM's increased so did the OP. Now I'm crusing at 35-40mph and the OP gauge is at around 40. Come to another stop and again the sound goes off, "check gauges" lights up and OP is at 0. Since Im pretty close I decide to limp it home but again the OP gauge goes back up to 40. Just checked the oil dipstick and it's kind of low but not where I would think that it'd cause the gauge to bounce around as much.

No other gauges seem abnormal, no knocking or ticking sounds so what could it be?

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 02:43 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC