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Old 08-30-2009, 09:23 PM   #1
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Question Oil Pressure issues

OK, here's the deal.

94 I-6 4.0 Litre, running w/ Mobil 1 synthetic, it's got about 115,000 miles. New rear main seal, recent oil change. The oil pressure sensor is new about 2000 miles ago, yet it reads 60-70 psi @ start up. If I let it warm up it still runs about 60 psi, after warm up the low end is 40 and the high is 60 or so.
I've tried restarting it after warm up, and sometimes it returns to normal readings of 30 to 50 during the course of driving.

I need some leads to follow, has anyone run into this problem?

Cheers,

Brando

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'94 YJ 4.0 litre I-6 Mated to a 5 spd, shifted with a Guinness Tap handle; Ford 8.8" rear end sporting LSD w/ discs & 3.73 gears, 5 1/4" of altitude riding 33 x 12.50 15 GoodYear Wrangler DuraTrac's.

Everything else is O-ridge-in-AL!!!!
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Old 08-30-2009, 09:45 PM   #2
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this is 100% normal.

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Old 08-30-2009, 10:30 PM   #3
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sounds like my 94 4.0 renegade.
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1994 RENEGADE

TREAT EVERY STRESSFUL SITUATION AS A DOG WOULD.
IF YOU CAN'T EAT IT OR PLAY WITH IT,
JUST PEE ON IT AND WALK AWAY.
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Old 08-31-2009, 08:06 AM   #4
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Normal. Actually your oil pressure switch is working pretty well
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Old 08-31-2009, 04:04 PM   #5
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Must be throwing me for a loop as I replaced the pressure sensor about 2000 miles ago and was used to it reading between 30 - 50 all the time. A Jeeper friend of mine recommended I replace the sending unit as pressure was hanging out @ 60psi.

Thanks for the info.
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'94 YJ 4.0 litre I-6 Mated to a 5 spd, shifted with a Guinness Tap handle; Ford 8.8" rear end sporting LSD w/ discs & 3.73 gears, 5 1/4" of altitude riding 33 x 12.50 15 GoodYear Wrangler DuraTrac's.

Everything else is O-ridge-in-AL!!!!
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