Overheating

Check the water pump its not the oil pump that pumps coolant thruout the engine

Hi:
Did you flush the engine block? Based on the heat loss, is sounds like there is still a blockage. Also, is the vehicle running good other than the overheating? Have you checked to make sure the catylatic converter isn't blocked?

Let me know.

Joe

One way to test for a bad water pump is to squeeze the upper radiator hose when the engine is hot and idling. Careful, because the hose will be hot! If you do not feel much coolant circulating through the hose when you rev the engine, the pump may be bad. The other cause might be a bad thermostat that is not opening properly (remove and inspect the thermostat), or a clogged radiator.

Pull yhe rad cap let the vehicle run until it hits operating temp and fell the upper and lower hoses for heat and also the heater hoses, check for flow in the rasdiator, no flow = bad thermostat or water pump, and def check the hose behind the themostat, you are feeling for hot or cold hoses

thanks, jim

oh and if you are happy with the info please leave some feedback we all donate out time here helping people for free

Get the overheating fix 1st try replacing the thermostat and go from there-if it continues get it block and pressure tested.

Engine Cooling problem
1991 Ford Explorer 6 cyl Two Wheel Drive Manual

Replaced head gasket, water pump, fan clutch, thermostat and radiator cap. Have flushed out system. No leaks or holes in radiator. No busted hoses. No oil in water, no water in oil. Any suggestions?

All those new things on except radiator if its not clogged-up could be airlock try bleeding it if it continues to overheat get it block and pressure tested.

Check the engine oil, if it looks milky then you have head gasket issues. Also make sure radiator fan is coming on.

THERMOSTAT (EXCEPT 2001 SPORT & SPORT TRAC)
Removal & Installation
NOTE:Make sure the air cleaner outlet tube screw clamps do not interfere with the throttle body cam.

Partially drain the cooling system. Remove the bolts and the accelerator control splash shield. Remove the air cleaner outlet tube. Remove the upper radiator pipe retaining bolt. See Fig. 64 .
Disconnect the hose clamp from the pipe-to-thermostat hose at the pipe end. Remove and position hose aside. Remove the thermostat housing bolts, housing and thermostat. See Fig. 65 . Inspect the "O" ring seal. Install a new "O" ring seal if necessary.
To install, reverse the removal procedure. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
Fig. 64: Removing Upper Radiator Pipe Retaining Bolt
Courtesy of FORD MOTOR CO.
Fig. 65: Identifying Thermostat Housing Bolts
Courtesy of FORD MOTOR CO.

Minimum $600 and up

INTAKE MANIFOLDS

Removal (Upper) .Remove negative battery cable.
Remove air cleaner intake duct from throttle body.
Remove snow/ice shield to expose throttle linkage.
Remove throttle cable and bracket from throttle body.
Disconnect all vacuum hoses.
Disconnect all electrical connectors.
Relieve fuel pressure. Using Fuel Line Coupling Key (T90P-9550-A), disconnect fuel supply and return lines at fuel supply manifold..
Remove ignition coil.
Remove upper intake manifold bolts.
Remove upper intake manifold and throttle body as an assembly.

Removal (Lower)
With upper intake manifold removed, remove valve covers.
Remove manifold attaching bolts.
Remove lower intake manifold assembly and gasket.

Remove exhaust manifold.
Remove spark plugs.
Remove accessory drive belt. If removing left cylinder head, remove A/C compressor (if equipped). Remove power steering pump and bracket, and position aside.
If removing right cylinder head, remove alternator and bracket. On all cylinder heads, remove rocker arm shaft bolts evenly by loosening bolts 2 turns at a time. Remove rocker arm shaft assembly.
CAUTION :If rocker arm shafts are not loosened gradually, shafts may become bent or damaged.
Mark push rod location for installation reference, and remove push rods.
Remove and discard cylinder head bolts.
Remove cylinder head(s) and gaskets.

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Yes it could be the water pump. However the thermostat and a clogged radiator could cause that also. You need to get an infared thermometer and try and find out which component has the blockage.