Car over heating,we already replaced the termistate

Check the fan motor to see if it will run. The motor might be bad. If it does, then check why there is no power going to the fan. Could be a loose or broken wire.

Please take your time and explain the whole problem. I can't understand what it is you are trying to say

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Possibly an engine timing issue

cold be termister

Have a coolant pressure test done looking for a head gasket problem. as well as the fan

This depends on what type of heat it is and what you are heating. If it is your car's heating then you have to wait for the car to warm up before hot air blows out.---------------------------------------------------------------------------------------
digiprog 3

Replace the thermostat which is located inside the lower radiator hose on the block side.

Get the Stant 195*F thermostat. As long as you replaced the engine coolant temp sensor than the t-stat is the next thing to replace. Also as a double check make sure your dial on the inside of the car is properly actuating the arm to move it to heat.

I had a problem with that in January 2008, my thermostat was fine. I took my car in to the dealer and they said the hinge that opens and closes the hot/cold air inside the dash broke. They had to remove my entire dash and replace the part. Luckily I was under warranty and didn't have to pay but the repair would have cost $3000.

possiable radiator not getting a enough flow, or you may have blown headgasket

th water pump may be out on it you cant always tell from looking. if its over heating that badly id replace the water pump before it goes all the way out on the van.