Question about 2005 Jeep Liberty

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There is a noise and vibration, almost like an engaged ABS. It pulses and has a deep vibration, it does not sound like grinding and it is only present when coasting or braking. It's completely gone when accelerating. Anyone have any ideas?

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  • Jeep Master
  • 5,546 Answers

Could be u-joints. Play goes away under Torque (accelerating) and returns when parts shift (unload) from Torque like coasting or braking.

Transmission or Torque converter not disengaging, hanging up in overdrive.

Posted on Oct 16, 2013

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Posted on Jan 02, 2017

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csmock132
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SOURCE: 95 grand cherokee has whirling noise on

Are any of the brake pads wore all the way out?

Posted on Apr 03, 2009

  • 105 Answers

SOURCE: 2002 grand cherokee laredo humming/grinding

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.

Posted on Jul 26, 2009

wracefans24
  • 1985 Answers

SOURCE: Vibration while accelerating from 30 to 45 mph Jeep GrandCherokee

Not a tune up problem,
You need to have all U-joints checked out,They will give you the vibrations only while acceleration

Posted on Dec 04, 2009

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  • 104 Answers

SOURCE: ABS LIGHTS ON AND IT ALSO AT BRAKING THE ABS UNIT

Sounds like a bad speed sensor.

Posted on Oct 09, 2010

  • 2926 Answers

SOURCE: My 1996 Jeep Grand Cherokee

Check the rear universal joint on the drive shaft for wear or evidence of rust. Take hold of the driveshaft and check for excessive play. Check for excessive play in the rear axles and look for leaks from the seals while you have the rear tire off. Hopefully the noise is not related to an internal issue with the rear differential.

Posted on Mar 26, 2011

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Brake Noise


Does the car have an anti-lock braking system? Could be that the wheel is sensing a brake lock when there is none and the pulsing is coming from the ABS motor activating, and the grinding/moaning sound is the ABS motor running. If you have never checked or used your ABS system, take your car out to a big, vacant lot or on a street where it is safe and you can get the street wet. Get going about 50 or so and, (after securing all the loose stuff in your car and trunk,) lock the brakes up. You will feel a pulsation in the brake pedal and hear a wierd, moaning noise. That is all perfectly normal. The pulsing is the ABS motor and related parts applying and releasing the brakes repeatedly at a high interval. This is what keeps the brakes from completely locking up and gives you the ability to steer and control the vehicle while jamming the brakes on fully. If your car doesn't have ABS, the caliper may be sticking in and the noise and vibration are from the pad being loose between the caliper and the rotor. Take the wheel off and watch the pads while you have someone else push the pedal. Have them push it VERY SLIGHTLY at first and see if it locks the rotor from turning by hand. If so, it is probably working correctly. If not, it should lock up before they feel much resistance in the brake pedal. Still, if not, the rotor is probably sticking because the dirt/grunge ring on the caliper piston probably isn't letting the caliper travel out far enough since the rotor was turned and the caliper has to make up for the extra space. This is probably not the issue since we are only talking about a few thousands of an inch, but still...
It is hard to diagnose using someone else's ears, but you might go by a brake shop and ask them to listen to it and see what it sounds like to them. If a brake shop can't answer your question, find another brake shop!

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