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S. Hardy
Dodge Dakota
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8/24/2003
15:19:41

Subject: Loss of oil Psi
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I bought a 99 3.9 Dakota about 3 months ago. After about a week of having it I lost Oil psi after coming to a stop.
Before I could pull over the psi came back up.
I still pulled over and check for oil leaks and oil level everything looked good.
I was only a few miles from home so I chanced it. After every stop it did the same thing. So I parked it not wanting to take any chances.
I went to my local dealer and got a new sending unit and also decided to add a manual oil gauge.
Replaced the unit and did a oil change.
Everything was good until Friday, I had just replaced the brakes and was out on a back road doing some stop an go's, when after I was done I came to my 1st stop and I lost oil pressure. Both gauges read 0, before I could stop the pressure came back up to about 10 psi.
Wasn't far from home so I drove home with low oil psi. Got home and settled down (I was mad) and after about 10 min. I started the truck and everything was fine.
I have 49k on the truck and it runs about 40 psi at highway speeds and 20 psi at idle when warmed up. I also use Mobile 10-30 in all my vehicles.
Any help on this would be greatly needed.



reesa
Dodge Dakota
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8/24/2003
15:26:48

RE: Loss of oil Psi
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I don't know if this helps...but we had a similar problem and it ended up being a oil sludge buildup in the oil pump. Had to physically scrap out sludge with a hanger. Cause it was blocking the flow of oil from circulating. It's not an expensive fix but it will take a bit of oil under the fingernails and some time. Hope this helps.



Roger
Dodge Dakota
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8/26/2003
13:33:44

RE: Loss of oil Psi
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ON my present 95 Dakota, I don't have this problem. However, with a previous Ranger I had a reverse problem to yours, the oil press would drop to 0 on the highway. I would slow down and the press would come back up. For this case, I found I had to keep the the oil level NO HIGHER than the mark on the stick. (I am used to carrying oil level about 1/2 inch high). I drained about 1/2 qt and never had the problem again. (The crank was evidentally hitting the oil surface and causing it to foam. An oil pump will not pump foam). I don't know if this has anything to do with your probem since it sounds like the reverse.

Good luck.



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