newbie needs help!!!
06-30-2009, 06:11 PM
#1
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Year: 98
Model: Cherokee
Engine: 4.0L
newbie needs help!!!
i got a 98 jepp cherokee classic and my oil pressure gauge will run about 40-40 psi but when i get off the freeway and stop at like a light it drops to about 13 psi. so the guy at the parts store said it might be my oil pressure switch. so i bought one now i cant find where it is and need help locating it. please all you smart jeep owners help me.
06-30-2009, 06:34 PM
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Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
You oil pressure swith is the round silver thing with the wire going to it right next to your oil filter on the passenger side of the block midway back.
06-30-2009, 06:35 PM
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Year: 1987
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Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
BTW, 40 PSI while driving is a good oil pressure. I believe your motor is fine. The new oil pressure sender switch should fix your problem.
06-30-2009, 06:37 PM
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Year: 1987
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Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Oh and welcome to CF from Buck in western Washington state. If you have any other issues with your rig please post them in the Cherokee Chat or XJ/MJ Tech sections.
06-30-2009, 06:39 PM
#5
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Year: 98
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im not looking for the sending unit the new one i bought doesnt fit right there the guys at the partss store said it is a totally different thing so i dont know what they are talking about
06-30-2009, 06:45 PM
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Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Well, here's the deal. If the guy at the parts store said he sold you a "Oil Pessure Swich" and it doesn't fit in the spot by the oil filter on your Jeep 4.0 motor, then the parts guy sold you the wrong Oil Pressure Sender/Switch. The one by the oil filter is the only one on that motor. There is no other oil pressure switch anywhere on an XJ.
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06-30-2009, 06:52 PM
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Year: 1987
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Take the old part with you so you can show it to him and get the right part Barney style. Choke your parts guy's neck, then make him do his damn job and give you the right part.
06-30-2009, 06:55 PM
#10
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Year: 98
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now even if my jeep runs fine do you think that the gauge might be bad or just a crazy reading im not losing any oil at all so as far as i can tell nothing is wrong other then this weird reading
06-30-2009, 07:21 PM
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Year: 1987
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Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
It's most likely the sender. The guage lasts much better than he senders do. When the sender gets gummed up and sends bad information the guage reads bad information.
