clunking noise pressing gas pedal after car start
 

I have been having some clinking/clunking noise from under the car for a while now. After starting the car and drive, no matter whether I let it sit overnight or just 15 minutes, whenever I press on the gas pedal, the noise would come on. The noise would disappear after a few minutes. If I press the gas pedal more gently, it makes less noise. The car drives fine otherwise.

my description makes any sense? Any ideas? Thanks.

Engine mounting.?

Check all the lug nuts for tightness.

If it's a single clunk, I'll guess it's the differential bushing or other mount in the drivetrain.

Does the sound happen just revving the engine? or does it only happen in gear?

U-joint?

it is not a single clunk, and it happens when revving the engine (the harder the more audible).

Time to put it up on a set of ramps and look at the exhaust for loose shields. Something that 'clunks' is usually u-joints or diff, but since the OP didn't post mileage, AT/MT or other information, I'm going to guess exhaust shields. :ugh2:






OP, as a suggestion, when asking for help, try posting more information other than what you posted. Details like milage, transmission type, any mods would help us give you a logical answer and will leave you less open to troll responses. :tiphat:

:iagree:

thanks for all the suggestions! this is an auto, 58K miles. The interesting thing is no matter whether the car is warmed up or cold, the noise always appear in the first few revs of the engine. The noise went away after < 1 minute.

Could be an oiling problem (eg, weak pump, clogged filter, etc).