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When the oil pressure guage is in the high position, it means you have good oil pressure. As your car warms up, the pressure should drop a little. The guage will usually drop at stop signs and stop lights and then go up as you accelerate. If your guage goes to high and stays there, you could have a problem with your sending unit or you could have too much oil in the car.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoMy 89 4.0 engine had this problem every couple of years. The pressure gauge on the dash would peg out on high on the scale. It was always the oil pressure sensor located right below the distributer. Yours might be different. Not expensive. You might be able to do it your self.
Wiki User
∙ 16y agoCold oil when you first start the engine will have lots of pressure then it will settle down as the oil warms and thins out.
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On a 1996 Grand Cherokee Laredo What would cause the oil pressure gauge to fall all the way to zero when coming to a complete stop and having the check gauges light come on then returning to normal?
Your cam bearings or crank bearings are worn to the point where your oil is no longer going to pump through the journals to the top of the engine . You need new bearings. The engine needs to be over halled.
What would cause a jeep Cherokee radiator upper and lower hoses to collapse?
If they are collapsing after the engine is off, the rad cap is bad. The cap needs to allow pressure back in as the engine cools off.
What would cause the temp gauge to not work on a 93 Ford Taurus Station Wagon?
The first thing that I would check is the wiring and the temp sensor @ the engine. Sorry but I do not know where the sensor is located on the engine. Usually they are not too hard to locate. i would replace temperature sender usual located near front of engine near thermostat housing
What should the oil pressure read on a 1991 Jeep Cherokee 4.0L at idle?
On metric gauge 2.5 to 3 bar, about 40 to 45 psi. At least 15 psi, 25 psi would be better, 40 psi on a good engine.
Why would your 3800 V6 oil pressure read 129 psi all the time?
Sounds like a new pressure gauge sender is in order. That actual pressure would be virtually unattainable under normal working operation in your motor (10 psi per 1000 rpm is a good rule of thumb for proper oil pressure, a greater ratio at lower rpm is fine, the opposite, not so much), so it is definitely an improper reading of the gauge. If it is the factory dash gauge you are obtaining these readings from, it is also possible that the needle itself on the gauge cluster has simply loosened slightly, not enough to fall off, but just enough to swing into the improper location. If it is an aftermarket gauge, again, re-check the pressure sender.
Why would your oil pressure sensor register no pressure if the car is running fine?
Many sending units do not have continuity below 6-7psi. This would cause the gauge to read nothing and indicate a base engine problem. Some type of engine noise would be associated with this concern (ie. ticking, rattling). The sending unit or wire to the gauge could be open. This would be an electrical problem and have nothing to do with the engine. Along that same line would be a defective gauge.
What would cause the oil pressure gauge to turn off on a 1994 Buick Skylark?
A lack of oil in the engine./ the sensor in the oil system./ broken oil pump
Why would the temperature gauge go in the red and check engine light come on while the oil pressure gauge dropped?
mechanical engine trouble. its about to blow up.
What is the instrument that indicates engine power for an aircraft with a fixed-pitch propeller?
That would be the RPM gauge. On an aircraft with variable pitch prop it would be the manifold pressure gauge.
What would cause oil pressure to drop when idling in 2000 jeep wrangler?
Depending on mileage--could just be a sign of engine wear Remove oil sending unit and replace with mechanical gauge to determine actual pressure
Could coolant leaking from a water pump cause your engine to read cold at the gauge?
No, low coolant would cause the opposite.
Would a bad oil pump cause a car to stop running?
A bad engine oil pump could destroy the engine if allowed to continue to run. If the engine oil light stays on and or the oil pressure gauge reads "0", the engine is in serious trouble. Have it towed to a shop for diagnoses.
What is the cause for your 97 Checy Tahoe LT oil pressure gauge fluctuating constantly and idle is not staying constant Idle revs when in Neutral?
probably a leak in the intake would cause the rev in neutral and as for the oil pressure gauge i still haven't got that figured out but its not just a problem on tahoes i have a 2500 pickup which also does that ANSWER When was the last time you changed the oil engine?. Replace and check.
What would cause the rpm gauge to be erratic but the engine runs normal?
I have 2002 Aurora with the same problem.
What would cause the oil pressure gauge on your 1991 S15 jimmy not to work and how do you fix it?
Have you change the oil pressure sending unit, that's what I had to do. David
What would cause the temperature gauge not to work on your 1998 Pontiac Sunfire?
temperature gauge not working can be caused by a bad temp sensor in engine, a bad gauge in dash, or a bad fuse
On a 1996 Grand Cherokee Laredo What would cause the oil pressure gauge to fall all the way to zero when coming to a complete stop and having the check gauges light come on then returning to normal?
Your cam bearings or crank bearings are worn to the point where your oil is no longer going to pump through the journals to the top of the engine . You need new bearings. The engine needs to be over halled.
