rustylexus

when im coasting down the road and i press the gas pedal to accelerate a loud noise comes from under the car. i also hear it when im sitting still on the brakes and i shift the transmission from reverse to drive. anybody heard of this problem?

qewani1

http://www.google.ae/search?hl=ar&q=...&meta=&aq=f&oq=

Kaydee

what kind of noise? ticking? tapping? hissing? high-pitched? give us more info...

rustylexus

its like a hitting sound like a clunk. it sounds to me like something maybe a u-joint is loose. it doesnt make the sound if i very easily press the gas pedal to accelerate.

Lexs400

Is it a loud noise or something that you'll have to turn down the music to hear.
also is it noise or is it a thump that you "feel" when you press the accelerator ? is it comeing from the rear ?

Bali26

Motor mounts

Rocan

thats the engine going "vrooom"



xD


Seriously its probably the motor or tranny mounts

rustylexus

you can feel it when it happens even with the music up. its as if something was loose in the drivetrain somewhere. im just trying to see if its common and what it is

Rocan

must be the tranny mounts...
cheap fix, albeit time consuming, if im not mistaken

ucfjon

iTrader: (1)

it could be:

- the flex disc between the driveshaft and the transmission
- the flex disc between the driveshaft and the rear diff
- transmission mounts

inspect these rubber parts

JBrewster

Nah the transmission mount is easy, it's the motor mounts that are a pita.

python

iTrader: (4)

sitting still and u think it might be a u-joint? lmfao....problems like this are impossible to diagnose on forums, it could be something like a loose muffler or u could have ran a cat over and it squirming around under there trying to get free! take it to a shop and let someone put it on a rack and/or test drive it