Oil pressure sitting at 0 psi for a few seconds on warm start then builds pressure
10-22-2019, 05:24 PM
#1
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 inline 6
Oil pressure sitting at 0 psi for a few seconds on warm start then builds pressure
Hi so I have a 2000 Cherokee sport with the 4.0 and on warm starts my oil pressure will sit at 0 for maybe 4 seconds before it builds pressure. Then after that every thing runs fine. I was wondering what could be causing it because this is my first jeep and first car so I'm kind of a newbie with some stuff. So any advice would be great.
10-22-2019, 09:05 PM
#3
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Year: 1999
Model: Cherokee (XJ)
Engine: 4.0 L
Do you briefly get a "check gauges" light while this is happening?
It could be the anti-drain back valve (I think its called?) in your oil filter is bad. An oil filter change wouldn't be the worst idea.
It could be the anti-drain back valve (I think its called?) in your oil filter is bad. An oil filter change wouldn't be the worst idea.
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BlueRidgeMark (10-23-2019)
10-22-2019, 10:02 PM
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 inline 6
Yes I get a check gauges light and I'm using a mopar oil filter if that helps
10-23-2019, 10:26 AM
#5
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Year: 2001
Model: Cherokee
Engine: 4.0
Check to make sure the sensor is actually working by hooking up a mechanical gauge instead. Those sensors are known to have problems. I don't even have mine plugged in because it was shorting out my pcm
10-23-2019, 07:30 PM
#6
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Takes less than 10 minutes to swap it in, get a reading, and put things back the way they were.
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