Question about Jeep Liberty

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Oil light comes on but oil is full on '02 Jeep Liberty.

Any way that a bad alternator could have any impact on the oil light

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No, the oil light is completely separate from the alternator.
The two things (in my experience) that would cause this:


1. Sludge in the oil pan, which clogs up the oil pickup, therefore starving oil from the engine,


2. A bad/weak oil pump.


If it is either of those, it is important not to run the engine anymore, get it towed the nearest garage!
There is no way to tell for sure, in less it is diagnosed by a mechanic.


Hope you get to the bottom of it

Posted on Dec 02, 2012

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Could be your oil pressure switch,it's located by oil filter,screwed into block,just remove electrical connector,get wrench and remove.

Posted on Dec 02, 2012

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1 Answer

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

2 Answers

Oil pressure light cames on when rpm comes down to 1000 (2002 jeep liberty)


Get an oil change first. If this does not fix the problem then you may need to replace the oil pump.

Dec 05, 2010 | 2002 Jeep Liberty

1 Answer

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

1 Answer

2004 jeep liberty. oil light come on some times. today on tomorrow off sort of thing. checked oil and full. 2000km from last oil change. what are other reasons for oil light to come on?


other reasons:

perhaps it has too much oil in it? is it right on the fullmark, or above?

solution - drain some out by carefully undoing the sump bolt and holding it so only a dribble comes out, its usually one litre between E and F on your dipstick.

check your motor belts(fan, alternator, aircon) have any fallen off or are loose, some cars have vacuum pumps powered by the belts that maintain oil compression in the engine.

poor compression in your cylinders perhaps, symptoms of a worn motor
get a engine compression test done.

your oil pump may be getting wornout, this is a pump within the engine that pumps the oil from the bottom back upto the top so your motor is properly lubricated, no real way of testing this, try replacing this as a last resort, its usually cheaper to put a 2nd hand replacement motor in.




Mar 09, 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

Oil light in Jeep Liberty comes on after getting oil changed


oil level is low you have a leak. or they didn't add enough maybe your oil pump is going bad causing low oil pressure.

Dec 24, 2008 | 2004 Dodge Neon

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