A pebble.
maybe a loose connection or may jus need readjusting
There can be several things that will cause your 1994 Jeep grand Cherokee to make a loud clanking noise when you drive it. The most common cause is a bad u-joint.
Bad axle maybe? Does it do it when you turn one way or another? Check to see if the cv boots are torn.
Sometimes squeaky noises can be a result of a damaged belt. When you speed up, the noise goes away. You should get your car inspected by a mechanic.
A bad resistor can cause your BCM to make a clicking sound. The clicking noise can be caused by the relays and replacing the BCM will fix the problem.
A clicking noise, when accelerating, can be caused by a worn CV joint. The CV joint can cause the axle to collapse when it breaks.
drive belts tensioner/under chassis
I hear a clicking noise coming from my jeep when I hit speeds greater then 50 MPH? any ideas on what can cause this
If it makes a clicking, grinding, rattling, or other noise when you accelerate with the steering turned it is not safe.
cv joints
dead battery
Check in with the dealer to see if there have been any recalls or technical papers sent out on it. It could be an indication of transmission issues to come.