1994 Chrysler Town and Country radiator fan not kicking in

Engine Cooling problem
1994 Chrysler Town and Country 6 cyl Two Wheel Drive Automatic

Hi,

My town and country was rear ended recently and it in turn rear ended the car in front, resulting in cracked front bumper and a cracked radiator, losing all the antifreeze. I brought it home and repaired the radiator and reinstalled with new antifreeze, no leaks. Car starts fine but the fan is not kicking in. I tested the fan and all three relays and fuses and they all checked out. I understand there is a fourth relay hidden somewhere that I can't locate. Where is it and what other TS possibilities are involved?

Also, I just put in a new transmission but when I hit the gas, the car vibrates in first and second gear, and smoothens out by the 4th or OD. Could it be the CV joint. I did bend it a lot to get it out of the wheel bearing.