The spring side goes TOWARDS the engine , and if the thermostat has a vent hole
it goes to the top if it is a vertically mounted thermostat
Begin by removing the water supply hose from the top of your 1989 Ford F1 50 thermostat housing. Remove the thermostat housing retaining bolts. Lift the old thermostat out and drop in the new thermostat.
1989 ford F250 Fuel Problems, It cranks but wont start
how to install a serpentine belt on 1989 f250 diesel 7.3l
16 in
the thermostat is located on the front side of the intake manifold easy to get at
10qts
how do you change out the distributor assembly on a 1989 ford f250
On the harmonic balancer/driverside
on top of the water pump under the intake water hose.
Do this with the engine cold. At the base of the neck of the top radiator hose there are two bolts. Take those two bolts out and the thermostat is right there. lift it out and put the new one in. Then put the radiator hose back on and check the coolant level. I just had to do this on my '89 f250.
5000 lbs mine says...its a 1990
On my 1989 f250 the oxygen sensor is in the exhaust header pipe a few inches in front of the catalytic convertor