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I have a 2004 Jeep Grand Cherokee that is well taken care of. I change the oil every 5,000 miles but recently my oil light came on. I checked the oil level and its fine. It is also running very cold. it usually runs around 210 degrees but its barely even moving over 100 now and the really weird thing is if i let it set and idle it will warm up to normal but then when i start driving it cools back down to right above 100 no matter how long i drive. I have no idea what is going on so if anyone could help…. thanks

I have a 99 explorer and have no idea what is wrong with it so i will just describe the problem and hopefully someone can help me.  I had it parked for a few wks because it started acting up. It started knocking and the oil gauge was flicking back and fourth really fast. Last night I got it started and let it run for a while. It was no longer knocking and smoke was coming out of the tailpipe but stopped after a bit. It was making a noise that sounds like when you would put the playing cards in the spokes of your bike when you were a kid. The oil gauge was steady so I drove it and the oil gauge started again and went to low and stayed there. The noise could only really be heard when I pushed the gas. Other than those things the car seemed to drive well, just like it did before. I am worried that this will be a costly repair and also that I would breakdown somewhere. I have parked it and am not driving till I find out what is wrong so any help would be greatly appreciated!

2000 Mazda MPV oil light came on…within 2 minutes motor completely locked down. Starter engages but will not start.  I am NOT car smart so….what am I looking at and what is financial damage going to be?

my 92 s-10 blazer 4.3l throttle body has the check engine light on and the oil pressure guage is reading low (at the lowest point on the guage). the oil level is at the full mark on the dipstick. as i am driving and accelerating the pressure rises slightly and the light flickers on and off.(check engine light) there is no difference in the performance of the motor and the gas mileage seems to be the same. could this reading on the guage be a problem with the pump, oil sending unit, oil pressure switch and how can I properly diagnose the problem myself? and should the vehicle still be driven before diagnosis? thank you in advance for your response.

Have a jeep cherokee that is showing a low oil pressure on guage