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What can cause a 2003 Chevrolet Silverado make a thumping that can be heard and felt in the brake and accelerator pedals and how can it be fixed?


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2007-04-05 15:20:42
2007-04-05 15:20:42

If it is on;y when the brakes are applied, take the wheels off and check for something loose. Otherwise take it to a shop as it is impossible to diagnoise a noise without hearing it. I just brought my 2003 Silverado in for what sounds like a similar condition. The Tech who did the road test said it was a problem with the steering column transition joint. Don't know what that is, but apparently it's a known problem with '99-'03 Silverados. The part is in such demmand in my part of the county that it will take 6-8 weeks for delivery. GM says it's an annoyance, not a safety concern. The Tech said he could lube the part which will decrease the noise (but will not fix the problem. Funny thing is, While waiting for a courtesy shuttle ride home, I met a guy who had his truck in for the same problem. The noise could be caused by play in the intermediate steering shaft, a bulletin was issued, but not a recall. It was deemed an annoyance, not a safety hazard. Work was covered on two of my fleet vehicles under warranty. I just had this problem resolved, however I was out of warranty. It was the intermediate steering shaft. Part and 1/2 hour labor at a Chevy dealership w/tax in upstate N.Y. was $130. and change. I have the same problem and was thinking U-joints, but the mechanic told me the some lube in the joint to decrease the thumping and it worked. 10 bucks worth of lube/labor. Much better than $130 for something that is merely an annoyance!!

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They are easy to replace but hard to get at under the dash. Sinply remove the pin holding the pedals in and the rods to the cylinders and the pedals will comeout.

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The accelerator pedal on a left hand drive automobile is located on the same side of the car as the steering wheel also known as the driver position and on the floor with the other pedal or pedals. When only two pedals are present as in the case of an automatic transmission car the brake pedal is to the left of the accelerator pedal. In the case of a manual transmission auto the three pedals in order from left to right are; clutch, brake, accelerator.

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Yes, they have a brake and accelerator pedal but no clutch pedal

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vehicle wise, a clutch is to help you change gears and the accelerator is to accelerate the vehicle in the preferred direction (forwards/ Backwards). in a car the clutch is normally the foot pedal on the left and the accelerator is on the right. Both of the pedals are on either side of the break.


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