2001 Cadillac Deville

Haven't heard of it. Has the front engine mount been checked, they are known for splitting and a consequential clunk on accel. The braking clunk I am not sure about.

Thanks for your immediate reply and honesty. They replaced the transaxle motor mount near the radiator during my initial visit. I've consulted with several techs and they never heard of it as well, even the cadillac service desk. No sensor lights were engaged. I road with the tech during the inspection and he indicated that he did not hear anything, yet est at $600. At the bottom of the estimate says " THEN CHECK FOR NOISE". Lastly, will sensor lights engage if there problems with struts/shock??? Thanks so much

You may not have any warnings if it is a mechanical type problem. If you had electrical type faults-sensors/circuits, then you may have indicators to the problem. Do you feel this noise, say in the floor or steering wheel. Is it a good solid clunk, or a light clunk/rattle.

Thanks in advance. There is a solid clump in the floor. When I accelerate there is one solid clump coming from the floor near the rear and it seems that the vehicle draws slightly backwards into a very very small dip.

The only thing I can suggest without being able to hear/feel it is loose rear subframe bolts, worn knuckle bushings, exhaust grounding out due to damage, could be shocks. If it is within your means, have a second opinion.