It is important to know the signs and symptoms of car parts going bad. A thump sound when a car is in reverse is usually made when the transmission is going bad and shifting incorrectly.?æ
A thump word can be used to add emphasis or intensity to the sentence. For example, "The car came to a sudden thump as it hit the pothole," where "thump" emphasizes the abruptness of the car hitting the pothole.
Is it a loud thump like something has hit under the car?
The sound is most likely the brakes squealing. Check the pads to make sure that the metal part isn't cutting into the rotor.
Transmission problems.
it could be a motor mount. the best way to check is to open the hood and put one foot on the brake and one on the gas with the car in reverse
check tires for seperation.
the transmition is sliping
Cheap car stereos typically have very low bass and lack the "bump and thump" of more expensive car stereos. You can purchase nice car stereos online from websites such as Amazon, Best Buy and Walmart.
it will drive but when in reverse it wont move
Transmission is going out. Reverse is always the 1st one to go.
Check your converter they are known to can out seperate That happened to me in my 1998 Ford Explorer - turned out to be the differential. It started out as a loud thump, thump, thump, then just got louder until it sounded as though something under the vehicle was being dragged and grinded. It was incredibly loud! This all happened in a matter of about 15 minutes.
There is no sound if they are in good working order.