1500 Conversion Van AC stays on, van overheats. Pulled the AC clutch fan relay and it fixed the overheating thus far, but really need the AC this time of the year. Please help.

have a compression test done
if the overheating is occurring at lights , high rpms with low road speeds or it stay right when travelling and it has a fan clutch ( viscous fan hub) replace the hub

Did you change the thermostat? If not opening properly or far enough, that could be the cause of your overheating.

Use heater full blast with windows open to add additional cooling till you locate the source of the problem.

Stuck Relay for electric cooling fan. Dirty connections from Fan relay to cooling fan.

Start the car and turn on the AC to max. Do either of the fans run with the AC compressor engaged? Also, there is a temp sensor for the fan circuit but I don't know exactly where it is located on that vehicle.

could be the fan temp sensor or the van but sensors cheapest

Could be different problems.
The cluster issue could be a problem in the printed circuit board inside the cluster.
The cooling fan problem could be low coolant, a blown fuse, a faulty temp sensor, fan motor, or relay.

Both of these need the serpentine belt to run. Maybe its too loose. may need replacement or tensioner

check the ac fuse and relays, check the a/c pressure switch

cOOLING fAN tURNS ON @ 210-230 dEG. tEMP sENSOR bAD & OR fAN relay cAN cAUSE THIS pROBLEM

The radiator cooling fan relay has most likely failed. It is underneath the air cleaner on the frame rail just behind the radiator. NO cooling fan = overheating. This is the first thing i would look at. Best way to tell is when the van gets hot see if the cooling fan is on. You will hear it running if it is coming on. It will set a code for the cooling fan relay also.