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Old 02-15-2013, 10:10 AM   #1
dancin1's Avatar
Join Date: Aug 2011
Location: Kissimmee, Florida
Posts: 104
Need help with oil pressure guage.

Still a newbie here, my first Jeep, and it's lot different than my Harleys. I have this '91 YJ. The oil pressure guage is funky. When I turn the key on, it jumps to 80. When I start it it stays there, never moves a iota. then as the engine warms up it comes down to maybe 50 or 60. Think it might be the sending unit ?

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Old 02-15-2013, 10:15 AM   #2
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Location: New Jersey
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when i start my jeep the oil pressure is around 80 because the engine isn't warm. once it warms up it drops down. its nothing serious

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Old 02-15-2013, 02:03 PM   #3
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Book calls for 20-40 at idle 40-70 at high RPM. It is an electric gauge so it is close but not accurate. Like blood pressure the only bad oil pressure is ZERO!!!
89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.

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Old 02-15-2013, 02:44 PM   #4
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totally normal
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Old 02-15-2013, 06:08 PM   #5
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Thanks guys.
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