1992 Jeep Cherokee

Tiny
RUPGRAY
  • MEMBER
  • 1992 JEEP CHEROKEE
I recently purchased a 1992 Jeep Cherokee. The brake pedal pulses when I drive and the whole car shakes when I go over 53 miles an hour. The car has 214000 mi. On it and it can go from two to four wheel drive. Any help you could give me would be appreiciated. Thank you Theresa
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Monday, August 27th, 2007 AT 5:18 PM

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Tiny
GRICHARDS
  • MEMBER
The brake pedal pulsating immediately makes me think warped disc brake rotors, or out of round brake drums. As far as the vehicle shaking, boy-oh-boy. Lots of possibilities. Can you isolate the starting point/source of the vibration even though it shakes the whole jeep? How BAD is the vibration - Annoying but noticable, or bad enough to eventually leave a trail of parts behind as you drive? (And UNSAFE if this bad!) In the interest of throwing as much info at you as I can, I'll just quote verbatim from a haynes manual, but there can be other possibilities that other mechanics may have dealt with. Respond with more specific info for us, Please!

Brakes Pulsing:
1. Wheel Bearings worn, damaged or out of adjustment.
2. Brake caliper not sliding properly due to obstructions or improper installation.
3. Warped disc brake rotor(s).
4. Out of round brake drums.
More questions:Do the brakes feel spongy or does the pedal have a lot of travel?

Shakes/vibration:
1. Tire or wheel out of balance.
2. Wheel bearings loose, worn or out of adjustment.
3. Wheel lug nuts loose.
4. Shock absorbers or shock absorber mounting bushings damaged.
5. Incorrect tire pressures.
6. Excessively worn or damaged tire(s).
7. Loose steering gear housing.
8. Loose, worn or damaged steering components. (There is a steering dampener, like a little shock absorber for the steering that folks have had problems with that will cause shaking).
9. Steering gear improperly adjusted.
10. Damaged idler arm.
11. Worn balljoint.

The vibration ONLY starts at 53MPH and above, is that correct? NO shaking at all BELOW this? Finally, when you say it can go from 2 to 4 WD, is this because YOU change it, or because it does it ON IT'S OWN while you're driving? Respomd with more details, as there are mechanics on this forum who can help you given enough good information!
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Tuesday, August 28th, 2007 AT 8:55 PM

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