Possibly a worn engine and/or gearbox mounting or exhaust mounting
the ball joint is going out mite wont to fix it befor it brakes it will tair alot up under neath
Could be many things, ball joints usually make clunking noises (usually one when turning and one when turning the wheel from turning), cv joints usually make a clicking noise and vibrate under load. Have it checked out, les schwab will do it for free (check it).
It's your upper steering shaft. Either take it off and grease or replace it.
"Under the car" covers a large area. Directly under the driver's seat you find the universal joints.
Most people will tap the brakes of a car when their car is going downhill, usually to keep the car under the speed limit. The squeaking noise could be the brake rotors or the brake pads.Ê
Make sure that under the rotor it is not draging on the rotor debree cleaner. I bent mine toward the motor and it stopped making a noise. If its the brakes dragging for sure you need to change the caliper.
engine problems not trans.
NO! Take it back to the dealer, it is under warranty.
cv joints
It can if it is really bad. Try not to drive it and have someone who is mechanically inclined check it out, it could be a number of things.
I posted this earlier. weather the van is in gear or out of gear, driving or braking, as soon as it pass 50 mph it starts to make clunking noises from under the engine. not particular to one particular place but mostly from under the passenger footwell, then under the engine itself and sometimes a quieter noise from under the driver seat area. the noises sound like a chipping of metal or a quick and short grinding noise.
The air conditioners intake it under the passenger side dash all the way in the front. Some times receipts or plastic bags can get sucked up there and cause the noise. -Gary