Grinding/creaking noise

15

Asked by Aug 11, 2009 at 11:19 AM about the 2004 Jeep Liberty Limited 4WD

Question type: Maintenance & Repair

Hi All,
Has anyone experienced a pulsating grinding/creaking noise with a 2004 Jeep Liberty?
A pulsating grinding/creaking noise is resonating from the rear left hand side of the car. The noise can be heard at lower speeds and whether I am or am not pressing on the break. The grinding sounds is not constant, it is a pulsing sound based on the speed of the car. If traveling at 20mph, the noise is quick with little time between intervals. When slowed down to near 5mph, the noise is drawn out with moderate time between intervals.
 
The breaks have been replaced. The car has been brought to the dealer (whom blamed the breaks, incorrectly). I have also taken it to another mechanic (whom blamed the tires, incorrectly - why would rubber cause metal creaking/grinding noises? oye!)
 
Has anyone experienced this, or know what may be causing it? Please help!
 
Thank you in advance!

5 Answers

25

This sounds like a gearbox/clutch issue, and usually very expensive. Is your car manual? If so, does this noise only happen in certain gears?

15

Hi Adam, Sorry for the delay in post, I was not emailed that you replied! The Liberty is not manual, it is an automatic. Either way, the noise has only been heard at speeds of 20mph or less. Again, thank you in advance

1 out of 1 people think this is helpful.
55

You might try checking the lug nuts on the wheel. Sometimes when there is a loose nut the pulsating happens. If it is, blame the mechanics. Its their fault for not checking the nuts when they did the tires. It is also thier fault if the nuts are crossthreaded or too tight cause then you can't get them off when you need to change a tire on your own.

I think its the alternator bearing.Take a hollow tube or hose 12 inches long and while the engine is idling put one end in your ear and the other near the alternator, if the grinding is louder then replace alternator.

1,545

busted / cracked wheel bearings perhaps? does the sound become louder when you speed up? if it does, its just the bearing...

1 out of 1 people think this is helpful.

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