putting the belt on wrong - AS it will reverse direction of impeller.a blown head gasket-& I bought 2 NEW radiators that were BLOCKED in the middle of the RADIATOR for MY car.(they were a CHEAP BRAND)defective thermostat. most likely you have a blown had get the cylinders pressure ched are you blowing out white smoke when you excelarate if so blown gasket. Before you jump off the bridge, you may have a defective t-stat, fairly common among parts with new ones for whatever reason. You may just have an air pocket. Why did you change all those parts in the first place? IS the gauge accurate? that is is the engine temp. really hot or the gauge just indicating that? Is the cooling fan going on?
check that the thermostat was not put in upside down. also check radiator cap pressure
You have a blown head gasket.
The thermostat is located on the front bottom of the engine. You can follow the radiator water hose from the radiator to the thermostat.
On a 1990 Lincoln Town Car ( 302 cubic inch / 5.0L V8 engine ) Follow the top radiator hose to the front of the intake manifold on the top of the engine . Where the radiator hose connects to the water outlet . The engine cooling thermostat is INSIDE the housing
Remove the top water line from the radiator to the water pump. The thermostat is found there.
/ Follow the top radiator hose down to the water outlet on the engine; the thermostat is in there. Follow the top radiator hose down to the water outlet on the engine; the thermostat is in there.
The thermostat is located in the water inlet where the radiator hose connects from the radiator to the engine.
Once the thermostat has opened, the hot coolant flows from the thermostat housing on the engine into the top of radiator and out the bottom of the radiator back into the water pump.
lower radiator hose inside water outlet/ thermostat housing.
All cars that are water cooled (i.e. they have a radiator) must have a thermostat.
Follow the top radiator hose from the radiator to where it connects to the front of the engine . Your thermostat is behind the water outlet assembly
Drain the vans radiator. Remove the top radiator hose and water inlet. take the thermostat out. Put in the new thermostat and re install the inlet and hose. Refill the radiator.