Last post on Aug 06, 2013 at 5:45 PM
You are in the Jeep Liberty and Jeep Liberty Diesel
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Jeep Liberty, Diesel
#1 of 19 Oil light comming on
Dec 05, 2009 (10:30 am)
I have a 2002 Jeep liberty, 3.7 L gas engine with 99,000 miles. The oil light came on so I took it to my mechanic. I was using a semi-synthetic oil, he took it out and put the factory recommended oil in it. Light went out for about an hour then came back on. Next he changed the sensor, light went off for about 10 minutes after I got the car back. Now it comes on and blinks for a while then stays on steady. I don't know where to go from here, my mechanic is not sure either, any ideas?
#2 of 19 Re: Oil light comming on [comm1567]
Dec 27, 2009 (5:40 am)
Your post didn't specify how long you've owned the car or if you know its prior maintenance history. When I read the symptoms, my thoughts go to a sludged up engine due to lack of proper maintenance (too long between oil changes). But you could also be dealing with a failing oil pump. Either way ... you can't ignore the problem. I see your post was from week's ago, so I'd imagine you have found the issue by now anyway. Post back & let us know.
#3 of 19 Re: Oil light comming on [market525]
Dec 27, 2009 (9:05 am)
I have a 2006 Jeep Liberty 4X4, 3.7 liter engine. The oil light will come on when initially started after sitting for awhile. However, if the engine is cut off and re-started the oil light does not come on again. The oil is changed every 3,000 miles since purchasing the vehicle in February 2009. Any solutions to this little mystery.
#4 of 19 Re: Oil light comming on [market525]
Dec 27, 2009 (9:39 am)
I bought the Liberty new in 02 and have faithfully changed the oil and filter every 3,000 miles. Sometimes the oil that comes out looks as good as what is going back in. Did the manual guage thing and it has good pressure but I just can't get the light to go out and that warning noise is making me crazy. The engine sounds great but I don't know where to go from here.
#5 of 19 Re: Oil light comming on [market525] by comm1567
Jan 01, 2010 (2:05 pm)
I am currently loking into the same issue on a liberty for a friend. So far he has taken it to another shop that replaced the oil pressure sending unit. When I started looking into it I found oil in the C2 connector at the PCM. I removed the connector at the sending unit and found it to be full of oil also. I cleaned both connectors. Then I checked for the 5 volts going to the sensor which was good. I also had 5 volts coming from the pcm on the signal wire. I stopped at this point yesterday because I was going to town for the night. Will update with more as I find it.
#6 of 19 Oil light comming on
Jan 01, 2010 (4:09 pm)
I took the 2006 Jeep to my mechanic and they replaced the oil sending unit. He advised that some of the after market oil sending units will not properly function on the vehicle and will still come on peridoically. He stated that they used an oil sending unit from the dealer and the system had an error code of PO522 which was cleared. The problem has not returned. Hope this helps.
#7 of 19 Re: Oil light comming on [clueless20]
Jan 08, 2010 (11:40 am)
Thanks for the information. I checked with my mechanic and the unit he put on was from OEM and not from the dealer. I haven't had the time yet to get it back to him and try one from the dealer, it would be great if that solved the problem but the process of elimination gets expensive.
#8 of 19 Re: Oil light comming on [market525] by comm1567 [mcase]
Jan 08, 2010 (11:44 am)
Have you found anything more? or did what you do solve the problem. Any information I can get really helps.
#9 of 19 Re: Oil light comming on [comm1567]
Jul 02, 2010 (9:45 am)
Right now I am dealing more or less the same problem. It began after thermostat was remove for a treatment of water mixing with oil. I found some answers that identify this kind of problem with missing thermostat. I am going to installe an original one to see if it is part of the problem. Coincidence?
#10 of 19 Oil light coming on
Jul 11, 2010 (5:33 pm)
I have read the above comments and I have somewhat the same problem...I hope someone can help me.. I have been getting oil chages every 3000 miles but my last oil change my oil light came on. Just yesterday I had another 3000 mile oil change and ran into the same problem. My mechanic stated that I may have an oil pump problem or worse. Plese help me.