Question about 1995 Jeep Grand Cherokee
I have a 1995 Jeep grand cherokee, 4x4, orvis edition. It has all wheel drive all the time. After I drive it for a while,.especially around 20+ miles..usually in summer when it's hot.....when I turn, the transmission starts to ****. Some say it's the differencial,...sorry I'm sure that was spelled wrong...anyone have any solutions...what is going on? This usually dosen't happen in the winter when it's cold...I live in Minnesota.
The jeeps with awd or full time 4wd have a viscous coupling in the transfer case that transmitts power to the front axle when the rear looses traction. if the tires on the jeep are mismatched or the tires are not properly inflated it can engage the awd thus forcing the front and rear axles to turn at the same speed. when turning, the front wheels must turn faster than the rear because they are following a wider arc than the rear, this causes binding in the drivetrain which is releived by the tires slipping on the pavement sporradicly. the viscous coupling is filled with fluid that, when heated by the friction of the input spinning faster than the output, locks the coupling. a mismatch in tire sizes or tire inflation can produce just enough heat to lock the coupling in summer, but not in winter. to make a long story short, these vehicles are very sensitive to diffeneces in tire diameters.
Posted on May 28, 2009
Check the u joints on the axle ends...likely they are binding and have some rust inside them. I have also found that some of the binding comes from stop bolts being too far in to be practical. The bolts limit the turn radius, but usually are set so far in that you simply can't turn the wheel that far without putting even a new joint into a bind.I replace them with a slightly longer grade 8 bolt with a solid spacer bushing to prevent them from bending. This won't get rid of all of it, but will help a lot. If yours has c/v joints this applies as well. (but they do flex better than regular joint.)
If problem feels like its in the rear, check to see if you have positraction. If so change lube and use the posi additive.(made for this)
Posted on May 23, 2009
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Posted on Jan 02, 2017
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