Question about 1995 Jeep Wrangler

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Have a 95 jeep wrangler. 4 cyl engine. Oil pressure gauge is reading high. What might be causing this?

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Oil pressure switch short on a 2.5 it is on the passenger side on the back of the engine block if the is oil on the switch replace it 99.9% of the time this is the problem cheep to replace and not hard to do.

Posted on Oct 06, 2009

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Posted on Jan 02, 2017

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95 jeep wrangler. 4 cyl engine. Oil gauge normal with engine idle but reads high if accelerate goes all the way up


Do you have under drive pulleys? If so, you can expect that to happen. It does not mean that something is wrong. You may have a high volume oil pump too. I have under drive pulleys on my Camaro and the oil pressure and voltage readings go up. I have never had a problem with that. I would worry when the oil pressure gauge does not move at all $$$$$$.

Aug 04, 2012 | 1995 Jeep Wrangler

1 Answer

High oil pressure 80 psi on a jeep wrangler, what could be the cause?


Possible stuck pressure relief in the pump or a defective sending unit. Try putting a container of Marvel oil in there and see if it helps. Also putting a mechanical pressure gauge on it temporarily will give you an idea if the pressure really is that high. if pressure remains that high it can cause the filter to fail and leak. Therefore if you can't find an external cause, then the pump will need to be replaced or you can loose the engine if filter fails.

Jan 01, 2010 | 1997 Jeep Wrangler

1 Answer

Oil pressure gauge not reading on my 1994 jeep wrangler. oil is full just the guage has no pressure and not alot of power


The oil pressure specification for your engine is 13 PSI at idle hot, 37 to 75 PSI at engine RPM higher than 1600. I suspect your oil pressure gauge sender unit or gauge is inaccurate. I would have a known accurate mechanical oil pressure gauge temporarily screwed into the present oil sender unit to verify actual pressure.

If you have the correct pressure I would replace the sending unit first.

Sep 23, 2009 | 1994 Jeep Wrangler

1 Answer

Describe your 1997 Jeep Wrangler 1997 jeep wrangler 4 cyl idle fluctuates 900 rpm to 400 rpm after warmup no service engine light but check guages light comes on momentarily when rpm gets low and oil press...


The check gauges light is normal because at 400 rpm it isn't running fast enough to build sufficient oil pressure. I am guessing maybe a vaccum leak???

Jul 10, 2009 | 1997 Jeep Wrangler

1 Answer

95 jeep wrangler: gauge indicates 0 oil pressure


Wire on oil sending unit may have fallen off or sensor itself may have gone bad. Check both. If engine has no tapping noises, likely it's not a pressure problem.

Jun 07, 2009 | 1998 Jeep Wrangler

1 Answer

2002 jeep wrangler oil pressure gauge drops


When the gauge is at 0, is there any noise from the engine (tick, knock etc?) I would have someone put a mechanical gauge on there and read true pressure.Your driving pressure seems OK but if the low number is "real" something is wrong!

May 30, 2009 | 2002 Jeep Wrangler

2 Answers

When the engine temperature is cold the oil pressure will climb depending on the RPM's. If I keep the RPM's below 1800, the oil pressure will remain at 3/4. If I go beyond 1800 RPM's with the engine block...


You need to have a mechanical test gauge hooked up to see if this is a false reading, this special gauge goes into the oil sender tap in the block and will let u know for sure if the pressure is to high cold, if it is the most common issues are wrong weight of oil, do u use oil heavier than 10W-30W? any other oil like 10W-40W will cause high oil pressure readings, the reason is the very tight rod and main bearing clearance's the engines now use, it is only about 1/2 the clearance of older engines, that is so the new fuel saving thin oils can be used.

May 13, 2009 | 2000 Jeep Wrangler

1 Answer

Oil gauge goes up and down.


If grounding the dash does not work, try putting a mechanical gauge on it and reading actual oil pressure. Pressure does change while driving, but should not wander. With mechanical gauge, check that running hot at idle (in gear if automatic) pressure should not drop lower than 15psi (I'd rather see 20) High reading should be around 40 -50 but no higher.Low pressure indicates a loss of supply or bad bearing on the crankshaft, high pressure may be caused by sticking pressure relief or restriction in an oil passage.

Apr 19, 2009 | 1997 Jeep Wrangler

1 Answer

1992 jeep wrangler oil pressure goes off scale while accelerating


try replacing the oil filter and oil make sure u use the right grade oil for it if it still does it u need yo go to mechanic or if u have one connect a external oil pressure gauge to the engine to check if the car gauge is reading correctly if it is reading right then the oil pressure releif vale is stikking

if the car gauge is reading wrong change oil pressure sender

Dec 20, 2008 | 2002 Jeep Grand Cherokee

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