4jeXep4

if anyone knows or is a mechanic that can work on my jeep please let me know i live in Youngstown,OH! I'm willing to drive some distance if i have too. i have a 1999 jeep grand cherokee and having some strange problems with it. it has 115,000 miles and is all wheel drive
problems
1. grinding noise when i turn the wheel sometimes (mainly sharp turns)
2. oil pressure dropping and going back up randomly
3. when putting the car in drive the shifter isn't smooth, feels kind of loose and you have to like set it into drive or it hesitates then locks into drive

PLEASE AND THANK YOU

kjc

1. grinding noise when i turn the wheel sometimes (mainly sharp turns)
a. Check cv joints if applicable.. usually a damaged boot lets the grease out and dirt in.
b. If you're using 4wd on dry surface, don't. It will make noise that might sound like 'grinding' and can damage your transfer case.

2. oil pressure dropping and going back up randomly
a. Oil pressure drops and rises normally depending on engine speed.. If it's not just due to that, replace your oil sending unit (mopar part is usually recommended)

3. when putting the car in drive the shifter isn't smooth, feels kind of loose and you have to like set it into drive or it hesitates then locks into drive
a. That sounds like you could have loose linkage in the shifter itself. I'd check that first.

Michael4

it's kinda hard to not use 4wd when he has a quadratrac, or awd like he said. If its an awd setup, it has 4wd all time for pavement driving, and 4 lo for crawling out of something. Otherwise I feel that you are right.

SteelBlue99

Might be able to answer a few of your questions/ concerns.

1. Change your diff fluid. When you do that, make sure you add some friction modifier. Those Quadradrive systems require friction modifier, and if there's none & or not enough the diff will grind when making sharp turns.

2. Does your oil pressure gauge read within the normal limits at all times? If it drops down to 0 when you stop, and goes up when you take off, it's most likely the oil pressure sensor. That's an easy thing to change.

3. I wouldn't be too worried about the shifter, as long as the transmission shifts smoothly.

4jeXep4

thanks a lot for all your responses, i will try these out and let you know how it works out!
Merry Christmas!

kjc

oops.. I misinterpreted all wheel drive as 4 wheel drive. I blame it on death wobble