Which ever one or ones are making the noise, the lock actators have gone bad. The actuator comes as part of the door latch.
cv joints
The bearings are damaged.
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.
Noise reduction.
Could be one of your belts.
Bad Struts
The most likely problem is the blower motor making the noise. It may be necessary to remove the box to find the noise for sure.
Dead battery? Maybe if it makes clicking noise -dead battery
New lifters or repairing the cause of low oil pressure.
I'm not a mechanic but I had a problem with my 1999 Jeep Grand Cherokee lift gate not closing properly, seemed to move to the sound causing a noise. I replaced the lift shocks and the problem disapeared
The lock actuator has failed on whichever doors are making the noise. The actuater is serviced with the door latch.
It could be differential bearings.