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Oil pressure all over the place since replacing sensor

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Old 01-10-2017 | 07:09 AM
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FoolishDog's Avatar
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Year: 1997
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Engine: 4.0
Default Oil pressure all over the place since replacing sensor

So I did my oil a couple weeks ago and snapped the oil pressure sensor in half. I replaced it with a Durolast from AutoZone and I've been getting bad readings ever since. Some days it'll sit happily at 40 but a lot of the time it dances around 10-20. Every now and then it'll drop to zero and the light will turn on.
I don't seem to be loosing oil and there's no strange noises or anything so probably just a bad sensor?
Has anybody else had an issue like this?
Old 01-10-2017 | 07:29 AM
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From: Prescott, Az
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Probably a bad sending unit or poor connection at the unit.
Old 01-11-2017 | 01:17 PM
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For the extra few bucks I usually get the factory senders...in addition I put a 1/8 pipe tee in line with the block fitting and ran a grease gun hose to an auxiliary mechanical gauge that I tuck in by the corner of the engine bay ..always good to have a secondary confirmation of oil pressure when the gauge goes squirley
Old 01-11-2017 | 01:54 PM
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Originally Posted by bluejeep2001
For the extra few bucks I usually get the factory senders...in addition I put a 1/8 pipe tee in line with the block fitting and ran a grease gun hose to an auxiliary mechanical gauge that I tuck in by the corner of the engine bay ..always good to have a secondary confirmation of oil pressure when the gauge goes squirley
do you know who makes the factory sender? AutoZone only lists Durolast. I like the mechanical gauge idea.
Old 01-11-2017 | 02:05 PM
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Originally Posted by FoolishDog
do you know who makes the factory sender? AutoZone only lists Durolast. I like the mechanical gauge idea.

Rockauto has the Mopar OP Sending Unit.


http://www.rockauto.com/en/partsearc...ng.com+URL+%2F


Your OEM (Mopar) part number is 56031005AB. You can probably get one at a Chrysler dealer.
Old 01-11-2017 | 02:10 PM
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Its simple and cheap to build...most expensive part is a 0-80 or 0-100 gauge from Grainger maybe 10-15 bucks
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