High Pitch Noise in 2000 Jeep Grand Cherokee limited

Probably one of the compoents driven by the serpentine belt, or could have a vacuum leak.

Hi Charotte,your engine is not a interference engine.So your in good shape.

Whining high pitched sound from front end...left front wheel bearing or right it could be hope this helps tell me if it does

you really need to be more specific .......Moving? sitting still? engine running? what speed? braking? cold? hot? faster you go it gets worse? better? does it follow the speed of the engine? MPH? doe sit change pitch on/off the gas pedal? turning right or left. change pitch?

The noise you are hearing may be caused by a loose or worn serpentine belt and is slipping during all engine speeds while under load. It could also be a worn serpentine idler pulley that has worn out. These are just two areas for you to consider,but it is hard for me to tell without actually hearing the noise. Take the vehicle to an autoparts store and have someone check these engine components for a possible cause. They won't charge you anything.

sounds like differential input bearings, drain the rear end and check for metal shavings

May be a bad bearing on belt tensioner or idler pully

Well how short a drive is it.........to get you to go nuts. Is it a high pitched whine? If so look to your right. Is the wife sitting there? If so. That's the problem. Going 75-80 in a 25mph school zone will cause that. And where is the speed limit 75-80 anyway.


It's the radio, btw, install an inline filter to filter out the alternator noise.

sounds like you have a problem with one of your lines on your power steering or one of its components. the grinding noise could also be one of your pulleys that have gone bad too. check your steering assemby gear box.

likely pinion bearing or carrier bearings. They howl, characteristically, and the howl changes frequency with speed. Do check the u-joints first, though.