1999 Jeep Wrangler Oil pressure

MUDPUPPY59

MEMBER
1999 JEEP WRANGLER
6 CYL
4WD
AUTOMATIC
158,000 MILES

After driving about 15 miles, if I slow down to make a turn, or stop at a traffic light, my "check gauges" light comes on, and my oil pressure goes to zero. The temperature doesn't rise, and the engine doesn't run any different. As soon as I accelerate, the oil pressure goes back to normal. Please help!

2 Replies

BLUELIGHTNIN6

MECHANIC
16,542 POSTS

Can be caused by a few different things. First to check is the engine oil level. If OK, need to check the oil pressure with a mechanical gauge. The oil pressure unit may be faulty sending a false alarm to the gauges.

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Friday, January 22nd, 2010 AT 3:14 PM

MYJEEPSUCKS

MEMBER
2 POSTS

You need to replace your oil sending unit. My wifes cherokee had the same problem, and it appears to be quite common in the jeep family. I replaced hers after checking the internet and finding the same advice from others and it fixed the problem. It is located on the passenger side of the block under the dipstick (if you have one). It coosts about $40.00. It will have a wire plugged into it. It only takes about fifteen minutes to replace it.

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Saturday, February 6th, 2010 AT 2:40 PM