Jeep Liberty Oil light coming on
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?
So far I have
clean ERG value or replace
oil to full
no synthetic oil
voltage on sensor / check
o2 sensor / however i am not sure what this is
pin might be in backwards
reset light sensors
th 02-03 models have sluding problems & oil pump problems
replacing computer and or parts which has not worked usually a dealer thing
blocked oil pump screen
jeep makes bad parts so use better aftermarket parts
out of all of these only fix i have seen is the wiring short so if any of you have any info please let me know so i can help my mech solve this while my warrenty is still good.
about bad sensors I put a GM sensor in and all problems went away.
But let me address some other issues here. There have been several engines put out by Chrysler than have been sludge producers including the 273, the 318, the 360, the 3.9L V-6, the 2.2 turbo from the eighties, the 2.7 L V-6, the 3.7 L V-6 to mention a few. All of these engines have internal gas and internal oil flow issues and they run quite hot inside, more so than G.M. or Ford. If you use conventional oil and change it religiously every three miles you will have an issue with sludge formation even if you drive 90% of the time on the highway. In 1993, I did my research before purchasing a Dakota pickup with the 318. After a break-in period of 3000 miles, I switched over to synthetic motor oil. In 1998 we purchased a new Chrysler Concorde with the 2.7L V-6 and kept it for fourteen years. It was treated the same way as the Dakota. The 2.7 was far worse as it use oil pressure as a means of controlling timing chain tension. Internally, the engine needed to be kept immaculate otherwise it would fail. The 3.7 has similar issues to the 2.7 and thus must be kept immaculate inside. The use of a good oil filter helps too.
I feel for those of you with these issues but unfortunately Chrysler has built a few problematic engines. If they are kept immaculate inside, then they are delightfully powerful and trouble free. If they are not well kept, you know the results based on what I have read in this blog.
not losing any oil just a sensor on it way out. was driving me nuts.
no more lights