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Newbie Forum: Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. Probationary Members must limit their tech posts to this forum and sub-forums.

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Old 09-28-2011, 04:03 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #1 (permalink)
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thumping in front end while driving


so today a thump started in my front end for no apparent reason. it sounds to me like its coming specifically from the front left tire. im thinking it may be a front wheel bearing as ive though that they may have been going for a while now but i went from a slight noise to a defenitally noticable noise on ecceleration. at low speeds there is a slight whooping sound that gets faster as i accelerate. i dont think its my half shafts as i just had it inspected with no sign of wear. i didnt notice any great motor shift when i surge the throttle for the engine bay. ive read on here in two different posts that the lug nuts maybe loose which is a possibility that i will look into when and if it ever decides to stop raining. Just trying to get the expert opinions as im not great at diagnosis. i think that this is quite a coincidence but i ran through i pretty big puddle today as it was pouring pretty well on my way to work and vision was limited. but i drove ###### 20-25 miles before i heard any noise. also the thumping stops when i hit the breaks. like something is putting hold down pressure to hold whatever is thumping in place. and it is definatly a thump not a click as you would be used to hearing from a half shaft. thanks in advance guys/gals (i know your out there)


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Old 09-28-2011, 04:58 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #2 (permalink)
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Quote:
Originally Posted by and1chewy View Post
so today a thump started in my front end for no apparent reason. it sounds to me like its coming specifically from the front left tire. im thinking it may be a front wheel bearing as ive though that they may have been going for a while now but i went from a slight noise to a defenitally noticable noise on ecceleration. at low speeds there is a slight whooping sound that gets faster as i accelerate. i dont think its my half shafts as i just had it inspected with no sign of wear. i didnt notice any great motor shift when i surge the throttle for the engine bay. ive read on here in two different posts that the lug nuts maybe loose which is a possibility that i will look into when and if it ever decides to stop raining. Just trying to get the expert opinions as im not great at diagnosis. i think that this is quite a coincidence but i ran through i pretty big puddle today as it was pouring pretty well on my way to work and vision was limited. but i drove ###### 20-25 miles before i heard any noise. also the thumping stops when i hit the breaks. like something is putting hold down pressure to hold whatever is thumping in place. and it is definatly a thump not a click as you would be used to hearing from a half shaft. thanks in advance guys/gals (i know your out there)
Did you check your Wheels weights to see if they're still there?
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Old 09-28-2011, 05:10 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #3 (permalink)
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I would start with checking the lugnuts like you mentioned. I had a similar problem with my Accord about 20 miles before the tire fell off at 40 mph.

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Old 09-28-2011, 06:35 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #4 (permalink)
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Check the lug nuts, what kind of shape are the tires in, check for a bulge in the sidewall. Does the steering wheel shake? Check your caliper bolts. Jack the car up and try and shake the wheel top to bottom and side to side. If there's movement, could be ball joint(top to bottom), tie rod end (side to side), or wheel bearings.

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Old 09-28-2011, 07:06 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #5 (permalink)
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there arent any wheel weights on the outside i did get a look at that not sure if there was one there to begin with. i will check the lug nuts and the tire as soon a it stops raining and i can get out there. tires arent in great shape. the ball joints are in good shape as i said i just checked/had it inspected about 3 weeks ago and havent put more than 100 miles on it since. thanks guys you confirmed what i was thinking.

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Old 09-28-2011, 07:21 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #6 (permalink)
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warped rotors and pads..
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Old 09-29-2011, 06:44 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #7 (permalink)
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Pads are at like 7-8/32 rotors are in good shape. Wouldn't warped rotors cause a shimmy when I'm braking as opposed to when I'm not? Gonna try and check the lugs when I get done work unfortunately I have a 96 jeep cherokee I'm working on for my mom and moms come first sometimes.

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Old 09-29-2011, 09:55 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #8 (permalink)
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Jack up the car and see if the wheel wiggles. Had the same noises that one day got worse quickly, thought it was my tranny but the wheel had a lot of play in it.
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Old 09-29-2011, 09:58 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #9 (permalink)
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i would start off by checking the whole front end ball joints make a thumping sound when they blow.if its only when u r turning it could be an axle i should be something to major to change...

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Old 09-29-2011, 10:04 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #10 (permalink)
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I heard a similar noise and it turned out that 3 of my lug nuts fell off my left front tire. Didn't scare me until I realized that I had been on the highway without 3 lug nuts doing well over highway speeds. :/

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Old 10-02-2011, 12:28 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #11 (permalink)
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finally got out there today and had a chance to look at it. 4 lugs on the left front tire almost off. busted out the torque wrench torqued them down no more noise.

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