I recently bought a 2004 Acura TL (w/Nav) from a private owner. I notice a hard thumping noise every time i go over a slightly rough surface on the front passenger end only. Not sure what it is. Also on the highway, driving between 50MPH and 60MPH, the car vibates a little bit. The allignment seems to be perfect, doesnt pull on any side. Can anyone please tell me what it could be or any suggestions on testing it through DIY guide? Thanks in advance
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Re: 2004 TL thumping noise on the front passenger end
Sounds like worn suspension components. First, look at the tie-rods beind the wheel, If theres excessive play or real easy to move inplace, than it's bad. Also look at the bushings along the top and bottom of the independant links. Also, check the strut, its the cheapest repair and is most likely the problem.
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Probably need to see Acura dealer with serial number of radio unit and/or vehicle. If you search hidden corners of glove compartment, owners manual or console you may find the card with the number on it.
i would 1st check out the front tires to make sure that they are not defective, if tires check out ok, then i would put the jeep on a rack at a garage, and check out all of the front end components, including c. v. joints and the wheel bearings.
What you describe is consistant with a lifter not pumping up except at a little higher rpm, which would make sense. You have overhead cams, with hydrolic lifters. They pump up with oil. If you have one that is not fully "pumped", it will make a clicking noise when the camlobe moves it and it strikes the valve. This is not the only thing it could be...and maybe it is the tensioner, but if it is coming from the valve area....Also, your dealer should have a special stethescope so the mechanic can listen in spots, and move the pick-up to where the noise gets louder and make a better diagnosis.
You may not need the entire strut, just the part that serves as a shock absorber. The term strut refers to a complete assemby with coil spring and a central shock absorber.
When their seals fail completely, whether gas or fluid filled,they are just a piston in a cylinder with nothing to damp their travel so they can slam at both ends.
American made 'shocks' were once only really effective for ~20k miles but both foreign and domestic have improved a great deal but one of yours may have left the factory less than perfect.
Shop the parts before you let the car go to anyone to see if they are scalping you or only marking their cost up a little.