new 318 engine is running hot

i have a 1996 318 1500 laramie ive just put a new engine in it and its running hot, ive put a new radiator on, new radiator cap new hoses new clutch fan, i took the thermostat out of it to see if it would have an effect on it and it still runs hot, i dont know of anything else to do, does anyone out there know what it could be, could i have got a bad clutch fan? thanks

Water pump shot? Plugged heater core?

Does your heater work?

it also has a new water pump and the water is circulating good

Are you sure it is running hot? It may just be your temp sensor.

There is air in the cooling system still.

Is it boiling over or just indicating hot? If boiling over, I agree with wafrederick:


There is air in the cooling system still.


....this is a common thing. Park the truck on an incline, front end about a foot higher than the rear, and let it run with the radiator cap off. It will likely let out air that was caught in the system. Keep it full and after awhile the temp should come down.

Of course after doing this, if it still runs hot, check the sensor and/or the gauge.

Hopefully there isn't a blockage somewhere in the system. :uhoh:

Hopefully there isn't a blockage somewhere in the system. :uhoh:
try installing a new thermostat,,,,,,,,,,, it will slow the water and increase the time its in the radiator ,,,,,,,,,,,,, worked for me in a 74 duster