Question about 2007 Jeep Grand Cherokee Overland

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I have a 2007 Jeep Grand Cherokee Overland. When driving first thing in the morning. There is a grinding or rubbing noise in the front end of vehicle. It only does it when turning both ways forward and reverse. It does it for 5-6 miles then it stops. Very perplexing. Dealer said they spoke to Jeep Tech support... they said it was a characteristic of the vehicle. NO WAY!!! I rode with the mechanic... the first one to diagnose the problem. I took it back and rode with mechanic and he said that could not be a characteristic. I was too loud and it vibrated. They later told me it was the differential and transfer case and they would put and additive in to see if that stops the problem. ???? Sounds like a shot in the dark to me

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I have the same problem and the dealer changed the oil in the t case. He told me it was the wrong oil and to drive it for a couple of weeks and see what happens. It was a low growl and vibration until operating temp had been reached and only on turning. When accelerating forward the steering wheel would straighten from left or right NOW. If it was a diff gear problem it would be there all the time.

Posted on Jul 22, 2010

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Actually, it's most likely a differential problem. if the pinion or worm gear id missing a spur, it will vibrate and grind until enough oil covers them to stop the friction...usually after 10 min or so. what they will do is use a micro lubricant that seeps into the metal to keep it lubed up even when the oil has settled to the bottom of the case, this will at least quiet the grinding for those 10 min or so until the inevitable happens and the gear shatters because of vibration, wear, etc.
if its in the front, youll still be able to drive, but only in 2WD and you will hear a loud grinding/rattling, very unpleasent sound, from the front end. have them open up the case and look at the gears instead of assuming, its 10 bolts for gods sake so they need to do their job and WORK! dont let them toss you aside, tell them what you want...sometimes thats what it takes.

Posted on Apr 28, 2010

Testimonial: "I am going back to the dealer this morning and request that they look to see if anything is broken. Obviously... a lubricant is just a bandaid."


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