Oil pressure
10-12-2013, 10:25 PM
#1
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Join Date: May 2013
Location: Florida
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Year: 1999
Model: Cherokee
Engine: 4.0
Oil pressure
I recently noticed my oil pressure gauge fluctuating while driving and idling on my 99 Cherokee 4.0. It used to stay right at 40 while driving and when idling it would drop a little. Wondering if the sending unit is bad or something else.
10-13-2013, 08:02 AM
#4
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Year: 1998 Sport
Model: Cherokee
Engine: 4.0
How much does it fluctuate? A little is normal. If it's a real concern to you, You can verify your pressure with a mechanical pressure gauge connected to where the oil pressure sending unit is connected. While you are doing that make sure that the sending unit it's self isn't getting plugged up with sledge.
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