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Any number of things could cause this. Start with: * Loose items in the trunk * Spare tire not fastened securely * Shocks * Worn suspension components (look for broken / split rubber components) Lastly, all suspension systems have 'limiters' that keep the wheels from traveling too far (hitting the underbody) - if you are hitting large bumps then the system is working as designed.
What else can I help you with?
What would be causing a knocking sound in your muffler?
A hole in the muffler would cause a knocking sound in your muffler. A loose exhaust pipe can also cause a knocking noise.
What would cause a knocking noise when you turn your wheel?
Power Steering?
What would cause single Knocking noise when braking or turning?
A single knocking noise when braking or turning can be caused by a faulty axle. The cost of replacement is usually around 1,000 dollars.
What would cause a knocking noise when you use your brakes in the car?
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.
What would cause a loud knocking noise in the front of the car when you accelerate?
you may have a rod knocking and you need to take it to a shop asap
What would cause a knocking sound when not stepping on the gas?
can you elaborate? engine noise? stationary/moving? ticking, tapping or a definite knocking?
What would cause a loud knocking noise in engine upon starting?
Running too lean.
Why would your car make a knocking noise when turning?
your cv boot has torn and needs replacement
What would cause a knocking noise when braking?
Normally caused by worn steering or suspension components.
What would make a knocking noise on your Honda crv sounds like its the front left?
A knocking/clicking noise when making a turn is a sign of a torn CV boot. In this case it's the driver side boot that is torn.
Why would the engine of a 1997 Chevy Cavalier make a loud knocking noise even after being told that there is nothing wrong with it?
it's probably a rod knocking
What could cause a loud knocking noise in the right rear on a 93 Taurus It's not wheel bearing shock mounts or sway bar. Does it mostly when going over bumps.?
I would check the suspension bushings, if one of them is worn it would cause a knocking noise.
