Question about 1999 Ford Explorer

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Thumping noise in the rear of the vehicle

Every time I accelerate, I hear and feel a thumping sound coming from the back of the vehicle. The faster I go, the more frequent it becomes. At slow speeds, I have no problems at all.

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  • John May Mar 04, 2012

    It wasn't that. My vehicle is a 4 wheel drive, and the transfer case was stripped. The mechanic fixed it this past week.

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  • Contributor
  • 4 Answers

Put rear tire in front front on rear see if anything changes

Posted on Feb 25, 2012

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: cause of wobble in front end on 1992 ford taurus

what you have described is what happens when the wheel Bearing/Hub Assembly goes bad and needs to be replaced about a $80 part

Posted on Dec 10, 2008

harley9701ha
  • 424 Answers

SOURCE: 2005 expedition rear a/c makes thumping noise when transferring

Sounds like the roof/floor actuator internal gear is stripped. The only way to fix it is to replace it. Remove the cup holder in the right rear trim panel. remove the 8mm bolts holding actuator and replace.

Posted on Feb 02, 2009

  • 4 Answers

SOURCE: While accelerating,the vehicle hesitate and even jerks

Hesitation,jerking,acts as if it's not getting fuel? Have the egr/coil checked! I had same problem,thought it might be injectors,after delving deeper into it,I found the coil was defective

Posted on May 13, 2009

  • 1 Answer

SOURCE: NO heat in front of 2001 windstar van. Thumping

where is the flaaper down located at in a windstar

Posted on Dec 04, 2009

vetteman3002
  • 2299 Answers

SOURCE: 2004 ford expedition.4x4 eddie bauer.

The actuator is in the transfer case rather than in the front differential. I would say that the truck is not coming out of 4wd. This actuator is more than likely your problem. Here is a picture of the actuator. vetteman3002_6.jpg

Posted on Jan 16, 2011

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Hello. I hear a very loud thumping noise from the back of my 2014 Toyota Corolla as I slow down. I have taken it twice to the service station at the dealer and they hear the noise but cannot identify where...


Here are the only reason that can cause a thumping noise
  1. Wheel and Tire Problems
    • Wheels can become bent from striking objects, and tires can develop bulges from broken belts or wear. Both problems may cause a thumping noise. Thumping sounds caused by wheel and tire problems will typically increase in frequency at higher speeds, though the sound may not be heard at lower speeds. These problems can often be spotted by visual inspection.
    Suspension Problems
    • Worn or broken struts or strut mounts can create a thumping noise, especially when the vehicle hits a bump in the roadway. To test struts, bounce the rear of the car by forcefully pushing down on it and letting go. After letting go, the car should settle back to its original position without bouncing or noise.
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    • Loose trim pieces near or in the wheel well can flutter in the wind while a car is being driven. These trim pieces may create a thumping noise as they strike other objects. A car owner can check trim pieces for looseness to determine if that is the source of the noise.
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1998 toyota avalon mades sort of a thumping sound when driving it. Can't tell if it is a bearing. How can you tell if it is a bearing or the brakes, or even the emergency brake? It appears to be in the...


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You say you hear the noise when you "slow down". Does this mean you hear the thumping noise when you let off the gas and let the car coast to a stop or only when you are applying the brakes to decellerate?
If you only hear the noise while applying the brakes then I would assume it has something to do with your brakes. The first thing that comes to mind would be rotors that aren't true or warped which could make a thumping sound.

Do you feel any vibrations in your foot when it is applying pressure to the brake pedal? If you do feel a sort of pulsating feeling then it could very well be your brakes making the noise.

I hope I was of some assistance,
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