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My 2001 jeep grand cherokee laredo made a high pitched grinding noise while driving down the road, what could be wrong with it?

does it change when brakes

does it change when brakes are applyed?

when i give it gas or let off

when i give it gas or let off gas it makes a squealing noise but when i give it constant gas to maintain speed it gets quiet-er. but brakes didn't affect it. however, i thought it was the brakes at first and now the emergency brake dont work

when did noise start? noise

when did noise start? noise in front or rear?

noise is in rear

noise is in rear

today, as far as i know, its

today, as far as i know, its my wifes jeep.

check the e brake shoes, they

check the e brake shoes, they come apart some times. mws919

i looked them over today and

i looked them over today and they looked fine (all together) i did notice some lubricant coming from the front and rear of the rear diff.

pinion and plug leak but, not

pinion and plug leak but, not your noise. pos. a dry rear u joint?

thanks ill try that

thanks ill try that

let us know.

let us know.

after i looked at it further,

after i looked at it further, i now know the leak of gear lube is coming from the front of the diff. housing and maybe the side. i filled it full of gear lube and tried it, moved about 3 feet and heard a small quiet popping noise once and every time i move about the same distance, more pops. i didnt try to move it very far from fear of causing more damage but im pretty sure i need new bearings and seals. let me know ur opinion.

pull the cover off it and

pull the cover off it and check the color of fluid and look for any signs of metal filings. you'll see the ring gear, check the teeth on it for chips or very sharp edges on teeth. i repair about 2 a mo.chrysler says no problem thou. do you have any warrenty left? we're still doing 01's under warrenty so, it might be worth looking into? that's if you even have a rearend problem. let us know. mws919

no warranty so its all out of

no warranty so its all out of pocket expense, the fluid was dark like used motor oil and had a burnt smell to it like the metals got hot from lack of lube, just hope it dont cost an arm and a leg

i'd call chrysler any way,

i'd call chrysler any way, i've seen a lot of people get some help from them even out of warrenty, it can only help not hurt.

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