Question about 2002 Jeep Liberty

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2002 3.7 jeep liberty oil pressure warning light stays on.

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Hi, do not drive the car with the oil pressure light on, as this could easily cause serious damage to the engine. The first thing to check is your oil level. Make sure the level is correct. If you had to add a lot of oil, you can start the car briefly to see if the problem has resolved. If the light does not come one within a few seconds, shut the engine off again. Next, you can either check the oil pressure with a gage or buy a new sensor. I'm assuming there is not a gage in your car. I recommend you rent or borrow an oil pressure tester to test your oil pressure. You may be able to borrow a gage from autozone. Take your sending unit with you to the store to make sure you get the right fitting to go into your engine. The sending unit is next to your oil filter as shown in the picture below. Remove the connector and use a large socket or adjustable wrench to unscrew the sensor. Install the gage and have someone start the engine briefly to check the pressure. If the pressure is not steady and above 40 psi, you will probably need a new oil pump. Please get back to me with your test results before getting a new pump. Oil pump replacement is a big job. If the pressure is above 40 psi, buy a new sensor and install it. Don't screw it too tight. start the car and check for leaks. If it leaks, you can use some teflon tape on the threads to help seal it. What you don't want to do is break the threads off in the engine. Please let me know if you have any questions, and thanks for using FixYa.

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Posted on Jan 02, 2011


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SOURCE: 2002 jeep liberty check oil

there is a sensor in the bottom of the pan that checks oil leavle they get gumed up and stick next oil change you can pull it out and clean somtimes this helps if it dose not loked gumed or stuck replace it

Posted on Jan 18, 2011

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2002 jeep liberty check oil light comes on oil pressure is good and full of oil

there is a sensor in the bottom of the pan that checks oil leavle they get gumed up and stick next oil change you can pull it out and clean somtimes this helps if it dose not loked gumed or stuck replace it

Jan 18, 2011 | 2002 Jeep Liberty

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Oil light comes on at first starting shut off engine and re start and light i s off

I don't think there is anything to worry about, unless the light stays on. Think of the light as an oil pressure guage. When you first start the engine the oil pressure is very low, so the light Will be on. When the oil pressure reaches normal operating level, or a safe oil pressure, then the light will go off.

Dec 19, 2010 | 2002 Jeep Liberty

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Swhat does the little light with the drip mean on the 2002 jeep liberty sport

oil, typically oil pressure or low oil. have your oil level checked.

Dec 07, 2010 | 2002 Jeep Liberty

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Just bought our 2002 Jeep Liberty. The oil pressure light came on shortly after we bought it. Took the Liberty in for an oil change right away- pressure is fine, no leaks. The light is still coming on and...

How do you know the pressure is fine? What is the pressure? Either the engine is bad, or the oil pressure sender is lying, you need to know ASAP.

Nov 20, 2010 | 2002 Jeep Liberty

2 Answers

Oil light comes on at idle, goes off when driving, oil level full

change oil pressure switch it' should be near the oil filter

Dec 25, 2009 | 2002 Jeep Liberty

1 Answer

O 02 jeep liberty oil pressure light stays on

A couple of things could be wrong a bad oil pressure sensor, a short in the sensor wiring,low idle oil pressure. Checking this is simple on some models.

While disconnecting the sensor from its wired connector and the light stays on is a short in the wiring, if it stays off its hopefully a bad sensor. Before just replacing the sensor I would either buy a gauge to check the pressure at the engine and thus checking the sensor also. I HATE DUMMY LIGHTS!!!

Gauges are simple, easy to install and easy to see a problem before engine damage occurs. On the bad end of the spectrum of possible problems the oil pump may be worn out, or even the engine may be worn out to the point oil pressure loss at low idle or while oil is sloshing forwards at stop signs.

Hope helped with this. remember rated this help.

Nov 24, 2009 | 2002 Jeep Liberty

2 Answers

2002 V6 Jeep Liberty-Oil Pump Replacement

Yes you have to check your pressure with a mechanical gauge first. If the pressure reading is good replace the oil pressure sending unit. They are known to go bad, and oil pumps going bad is rare. 

Oct 29, 2008 | 2002 Jeep Liberty

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