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Sometimes, the car thinks the runway is too short and jumps so it won't crash at the end.
Also, consider checking engine mounts, transmission mounts, cradle mounts (if FWD) and CV joints and U-joints. Engine mounts and cradle mounts would be the most common causes that I've seen.
If the car is FWD, consider lightly powerbraking in Drive with the hood open and look for excessive movement suggesting a torn or weak motor mount.
If this is a Taurus or Sable, be very gentle so as not to rip the radiator or upper radiator hose. Check the mount descriped in the next paragraph for being ripped, or having a loose mounting nut. Also pay close attention to the front two cradle mounts. These very commonly rot away and cause a lurch. If it is a Taurus or Sable, replace the radiator and upper hose after repairing the lurch to prevent overheating later on. They are both already damaged.
If this is a Cadillac with a 4.5L or 4.9L engine, expect it to be the motor mount at the right front of the subframe (left front of the engine) or a CV joint of the right axle shaft.
Other less likely suspects are damaged:
strut rod or radias arm bushings, especially on Ford vehicles
ball joints
strut towers (cracked)
upper control arms (rotted or cracked) if a GM S/T truck, expect a brake pull
upper link on Mazda Millenia front suspension
strut mounts or strut bearing plates
What else can I help you with?
What would cause a sound like an airplane is taking off at the back of your car?
It's almost always a wheel bearing that would cause that noise.
What could cause your car to jump timing?
Timing chain or belt is broken
What would cause your 2004 jetta not to start without a jump then when you stop the car it wont start again?
bad battery or loose battery cable
What would cause the ignitionstarter fuse 20 amp to constantly blow car starts but only with a larger amp fuse and a jump?
The starter is failing.
Can you jump start a car while there is lightning?
Sure, but you are taking a chance of getting struck by lighting if you are outside.
What causes vehicle to jump time?
If you have a worn timing chain that hasnt been changed before, that can cause the timing to jump and cause your car to run very rough or not run at all
Why does your car shake when it backs up?
Cause it is going to frigin blow up jump out stupid.....
What would cause a whining sound when the accelerator is press in the car?
it's the air intake taking more air and the belts moving faster
How do you jump on rowley's dad's car?
jump on the car
How high can a car jump before it would injure the driver or any passengers?
The answer depends on the car.
When was Jump in My Car created?
Jump in My Car was created in 1975.
Where would you experience accelaration?
You would experience accelartion in a roller coaster, a car, and when you bungee jump.
