the v6 2.9 litre Ford motors cam,e with aluminum heads and after a few years of wear and tear and constant heat they tend to expand and contract until the warp or crack and no longer seal well causing them to leak or blow the motor.
Follow the top radiator hose from the radiator , where it connects to the engine is where the engine thermostat is located
Drain coolant. Remove upper radiator hose. unbolt 3 bolts on thermostat housing. take out old one. reverse to install.
Should be located in a removable housing at the engine end of the upper radiator hose Drain about 1 gallon of coolant from the radiator Remove this housing Note how thermostat is installed Clean both surfaces Replace thermostat and gasket Re-install housing Re-fill coolant slowly to prevent an air lock Start engine and look for leaks Run engine to normal operating temperature with heater on Re-check coolant level
possible clogged radiator or thermostat not opening all the way hope this helps
how to replace a thermostat on a bronco 198511
The thermostat is located in the water neck where the top radiator hose goes on. Its mounted in an O-ring, just pop it out with a screwdriver and replace it.
check your thermostat
fill up the radiator and then fill up the over flow located on the pass. side of the truck half way
WHERE THE UPPER RADIATOR HOSE CONNECTS 2 THE ENGINE THERE IS AN OUTLET(GOOSEHECK) UNBOLT THAT & THE THERMOSTAT SHOULD BE THERE & BE SURE 2 INSTALL THE NEW ONE CORRECTLY BECAUSE A BACKWARD THERMO WILL DESTROY AN ENGINE.
With the engine warmed up so the thermostat is open , squeeze the top radiator hose and then release it , as you are releasing it you should feel a surge of coolant going through the hose if the water pump is working ( carefull - watch the moving belts , fan etc - its nice to have fingers )
drain the coolant, remove the two plastic intake tubes from the throttle body an air cleaner box an then remove the top radiator hose then remove the thermostat housing(2 bolts) remove the thermostat an clean the housing both parts (where the two parts of the housing meet) make sure u get the old gasket off an both surfaces are clean an dry an then reassemble with new gasket an thermostat (the spring side goes in towards the block) put the hose back on ( this would be the time to replace the hose clamps there cheap) then put the two intake hoses back on the TB an the air cleaner box an the fill radiator. : )
A water pump is not really a water pump. It carries the fluid, antifreeze/coolant, from the the reservoir to the radiator/engine to keep it cool. It is now referred to as a "fluid pump"