Question about 1991 Mitsubishi Eclipse

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Oil gauge reading?????

I don't know if this a problem but I'm thinking that my oil pressure is running too high and was wondering if someone could enlighten me on how the gauge in my car reads. I'm thinking that when the needle gets to the point where its to the oil can and shows its dripping I'm too low on oil. I checked the oil and it was a little low. So my question is what temperature should the gauge be reading at a normal reading. Ok so I'm a woman and this is not something I've dealt with before. I'd appreciate any feed back. Thanks in advance

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Okay if you look at the oil pressure gauge the is a mark right below the "o" in oil. once the car is fully warmed up, at idle the gauge should read a little before that mark. at full throttle the gauge should be around the mark to the left of the "H"

Posted on Jul 10, 2008

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Posted on Jan 02, 2017

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Has 358000 miles, just had leaks repaired. Twice since my oil pressure gauge reads no pressure but not all the time? Why


1. Oil Pressure Gauge Not Working You will notice this happens when your oil pressure gauge is not reading, whether the engine is turned off, idle or running. Try to step on the gas to rev up the engine. If the oil pressure gauge still doesn't change its reading, your gauge is busted. It's best to replace it as soon as possible because you won't have any idea if your car is already overheating or not.
2. Oil Pressure Gauge Reading Too Low When your engine is idle, the oil pressure gauge will have a low reading. When the engine starts running or when you're already cruising or on the freeway, your gauge's reading should have increased. If it stays on a low reading, then you now your oil pressure gauge is broken.
3. Oil Pressure Gauge Reading Too High Another common oil pressure gauge problem is when your oil pressure gauge is reading too high when your engine is idle or when it's turned off. Rep

Oct 24, 2015 | 2001 GMC Yukon XL

1 Answer

Oil pressure gauge reads high only when engine is running,oil level is fine


that is a sign of the wrong oil grade. that truck takes 5 w 20 oil

Jan 26, 2013 | 2005 Chevrolet Silverado

1 Answer

I have a 1999 Jeep Grand Cherokee Laredo my oil pressure is reading high on thethe gauge I'm wondering is this due to a badbad o2 sensor I put in new spark plugs and changed the oil what could it be


Oil Pressure & an O2 Sensor?

You make stuff up as you go,silly

You don't even know what the oil pressure is

That is the question

Put a mechanical gauge on the motor to check oil press

Nov 25, 2012 | Cars & Trucks

2 Answers

How can i fix the oil pump


see this tips and fix it. God bless you
The oil pump supplies oil to lubricate your engine. If the oil pump is worn or is not turning, the engine will suffer a loss of oil pressure, which may result in engine damage or engine failure.
The first sign of trouble may be a low oil pressure warning light, a drop in the normal reading on you oil pressure gauge (if your car has one), or the appearance of ticking or clattering sounds from your engine.
As a rule, most engines only need about 10 PSI of oil pressure for every 1,000 RPM of engine speed. Oil pressure will read higher than normal when a cold engine is first started because the oil is thick. Oil pressure will gradually drop as the engine warms up and the oil thins out. So normal oil pressure on a warm engine cruising down the highway is typically 30 PSI up to 45 PSI.
SYMPTOMS OF OIL PUMP TROUBLE
The first thing you should do if any of these symptoms occur is to stop your car, turn off the engine, let it sit for a few minutes, then check the oil level on the dipstick. If the oil level is at or below the ADD line, add a quart of oil to bring the level back up to the full mark. Add as much oil as is needed to raise the level to the full mark. Then restart the engine. If the warning light remains on, or the oil pressure reading does not climb back up to its normal range, or the engine noise does not go away, you may have a bad oil pump.
The other possibilities include a bad oil pressure sending unit, or a problem with the oil pressure warning light circuit or oil pressure gauge.
OIL PRESSURE SENDING UNIT
If the engine is NOT making any unusual noises and seems to be running normally, and the oil level on the dipstick is FULL, but you are still getting a low oil pressure warning light or low gauge reading, the fault could be a bad oil pressure sending unit.
The oil pressure sending unit is mounted on the engine block. On some applications, there is a spring-loaded pressure-sensitive diaphragm with a switch inside the sending unit. This switch completes the circuit to the low oil pressure warning light if oil pressure drops below a certain threshold. The unit may stop working if the diaphragm inside fails, if the switch is stuck, if the small hole that allows oil to enter the sending unit becomes plugged, if there is a loose, corroded or broken wiring connector at the sending unit, or there is a fault in the wiring circuit between the sending unit and warming light.
On vehicles that have an oil pressure gauge (electronic, not mechanical), the oil pressure sending unit has a small rheostat inside that sends a variable voltage signal to the oil pressure gauge when the diaphragm moves. A worn spot on the rheostat or any of the other problems just described for the simple pressure-type oil pressure switches can cause a problem.
FORD'S FAKE OIL PRESSURE GAUGE
On many Ford vehicles that were built from 1980 through the 1990s, the oil pressure sending unit has two switches, a low pressure and a high pressure. These vehicles also have an oil pressure gauge, but the reading on the gauge is not a true indication of real oil pressure. As long as the pressure to the sending unit is between high and low, the gauge will read normal. If oil pressure drops and trips the low pressure switch, the dash gauge will now read low. Or, if oil pressure goes up and trips the high switch inside the sending unit, the dash gauge will read high. Consequently, don't rely on the oil pressure gauge for an accurate reading in these vehicles. It is only a gross indication if the oil pressure is low, normal or high.
OIL GAUGE PROBLEMS
If the engine is NOT making any unusual noises and seems to be running normally, the oil level on the dipstick is FULL, and you have replaced the oil pressure sending unit but are still getting a low oil pressure reading on the dash gauge, the fault could be in the wiring circuit between the sending unit and gauge, or the gauge itself might be bad.
Check the wiring connections on both ends as well as wiring continuity between the sending unit and gauge. If no wiring faults are found, hook up a pressure gauge directly to the oil pressure port on the engine and check oil pressure with the engine running. If the engine-mounted gauge shows normal oil pressure but the dash gauge is reading low, the problem is a bad dash gauge.
On the other hand, if the engine-mounted pressure gauge reads low and you have done all of the above, chances are the oil pump is worn, or it is not picking up enough oil because of a restriction or blockage in the pickup screen in the bottom of the crankcase.
OIL PUMP PICKUP PROBLEMS
The pickup tube has a screen on the end to prevent large chunks of anything bad that ends up in the crankcase from being sucked into the pump. But we are talking BIG chunks of debris, not normal wear particles or carbon or dust or other microscopic-sized abrasive particles that can cause pump wear over time.

Sep 28, 2012 | 1996 Toyota Tercel

1 Answer

1999 Mercury Cougar Starts and then Shuts down. In the beginning the car had a rattle in the TimingChain cover and was checked and it was fine, just that the Oil pressure was low and then the lifters...


Most engines have a low pressure shut-off OR the lifters no longer work with lack of oil.
Have someone check the REAL oil pressure with a gauge.They can thread a gauge into the Oil pressure sensor hole.
Since the oil pressure sender COULD be bad,you need this true reading.
It should run just long enough to give a reading,I hope.
I don't know if the OBD II codes would show the oil pressure.UIt doesn't on my Focus.I hope you get `er going,but the engine must have at least 25 psi oil pressure.Have you replaced the oil filter? don-ohio

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1 Answer

Oil pressure reads under the half way point and I know it had the right amount of oil,when you sit there in idle it don't read as high as it does when you are driving it?? Also does a 1997 has a key...


oil pressure gauges don't always tell you exactly what your oil pressure is (depending on the type of gauge) oil pressure is always higher when driving than when idling, as for the key you may have to check with your G M C dealer to find out if it has a chip in it or just get another key cut to see if it works,if your original key has a chip in it you will have to get another one from the G M C dealer.....hope this helps......cheers.

Jun 23, 2011 | 1997 GMC Safari

2 Answers

2.8l v6 in a s10 blazer. no head gasket problems thus far. wondering why my oil pressure gauge fluxuates? minor rpm change while oil pres guage does its thing why?


Oil pressure always changes with rpm.
At idle you should have around 10 psi, and it should max out at high rpm around 50 psi or so.
You not only can't have as much pressure at idle, but you don't need it either.

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3 Answers

2002 Jeep Grand Cherokee 6cyl 4.0 - High oil pressure


its probably the sender. there is no good way to test them without a mountain of tools. its easier to replace the sender i think its pretty cheap

Sep 14, 2009 | 2001 Jeep Grand Cherokee

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