Could be something loose in the trunk like the jack or spare tire. It is also possible that the exhaust system is contacting something on the subframe of the car.
Could be a bad strut or shock No I have disconnected both rear shocks and knocking noise is still there whilst driving. Seems to be coming from rear. When stationary I can bounce rear of car up and down and hear noise with handbrake on but not with handbrake off. Any ideas?
The knocking that you are describing reminds me of a stuck universal joint. A bent axle usually wears tires out very fast more than making noise.
The guy in the trunk.
u knocking on it
there could be excessive clearance in the rear differential case if this is a rear wheel drive vehicle.
Typically, a knocking noise when to use your brakes in the car is caused by your brakes wearing down. This means you need to get them checked out and repaired.
loose rear caliper or drum brakes, could be loose hardware or on disc brakes, possible warped rotor
warped rotors , brake
many many things, Loose lug nuts which lets wheel make knocking noise. Engine will make a knocking noise if it is really low on oil. Some timing belts make a knocking, slapping noise just before they break.These are just a few examples . Have someone ride in car with you as you duplcate the noise and see if they can determine which part of the vehicle it is coming from.
Its hard to say... do u know where the noise is coming from?
If the noise is coming from the rear then the bushing is broken.
it could be your valves or your engine