95 7.3 powerstroke over heating

[95f250txstroker]

my 95 powerstroke is overheating. My dad borrowed my truck and when he was driving it the cerp. belt broke, when he replaced the belt the truck started overheating, I just replaced the water pump, thermostat, had the radiator roded out and still do not have circulation,? pulled thermostat out and still nothing, system is pressuring up but no coolant going through. can anyone give me any helpful tips or suggestions it will be appreciated. thanx!

[CaDieselGuy]

Originally Posted by 95f250txstroker

my 95 powerstroke is overheating. My dad borrowed my truck and when he was driving it the cerp. belt broke, when he replaced the belt the truck started overheating, I just replaced the water pump, thermostat, had the radiator roded out and still do not have circulation,? pulled thermostat out and still nothing, system is pressuring up but no coolant going through. can anyone give me any helpful tips or suggestions it will be appreciated. thanx!

95f250txstroker- I would be looking at why the belt broke. Also check the belt tensioner. If the belt is slipping the water pump will not turn. If everything checks out ok I would look into that water pump. Did you use a good quality part? I have seen cheaper mfg's skimp on things like impeller thickness and important things like stamping the blade on.

[Jarrod B]

i agree with cadieselguy. also did the radiator get warm from the coolant? or stay cold?

[95f250txstroker]

its a brand new water pump, is there any way to check and see if it is working correctly?

[95f250txstroker]

the coolant and radiator are staying cold but the motor is getting hot, but it pressures up. ive been told it could be a head gasket but im not losing water nor do i have water in the oil or vice versa. i dunno much about diesels but im trying to learn. ive read through this forum and from what i read, if it was a head gasket, it would be circulating but have bubbles in the resivor. is this true or false? or could it be the head gasket?

[Jarrod B]

Originally Posted by 95f250txstroker

the coolant and radiator are staying cold but the motor is getting hot, but it pressures up. ive been told it could be a head gasket but im not losing water nor do i have water in the oil or vice versa. i dunno much about diesels but im trying to learn. ive read through this forum and from what i read, if it was a head gasket, it would be circulating but have bubbles in the resivor. is this true or false? or could it be the head gasket?

and you replaced the Tstat????


if the rad and coolant is stayin cold then theres a blockage somewhere.

[95f250txstroker]

yes replaced the tstat and even pulled it out and still the same thing. oh and the belt broke from age and wear. it was the original belt.. what could be blocked though? when we had the water pump off we ran water through the block. so i dont think its the block? but i could be wrong???

[Jarrod B]

any smoke? sediment in the coolant? did you ever replace the oil cooler? i dont know if the hg are blocked or not, ... im loosing ideas. these obs 7.3 are fairly simple on the coolant passages.

[nccatfan]

Air pockets in the coolant passages? Read up on any bleeding proceedures.

[CaDieselGuy]

Make sure you have the belt routed correctly. I don't know if its possible but if your spinning the water pump the wrong way that could cause an overheat. Other than that it has to be a blockage somewhere but I've never seen a 7.3L have a coolant blockage.