why is my truck overheating????? - Ford Powerstroke Diesel Forum
 
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post #1 of 8 Old 09-22-2009, 12:54 PM Thread Starter
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why is my truck overheating?????

Would a pluged heater core or the lines going to the heater core cause my truck to overheat?
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post #2 of 8 Old 09-22-2009, 02:16 PM
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best of my knowlege, no a blocked heater core or lines will not cause your truck to overheat because it isnt in the main loop of your coolant system. What year is your truck, anything done to it? Theres plenty of really good techs on here that could help you out. Biggest thing around here or on these trucks that would cause you to overheat is due to the head studs streaching and blowing the headgasket... im sure someone will chime in. Good luck man.

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post #3 of 8 Old 09-22-2009, 02:18 PM
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oooo is the truck smoking or anything of that nature.. that would be a good place to start. If thats the case your probably looking at a head gasket issue. Other possabilities too look at, water pump or thermostat...

04' F350 PSD
4" Superlift
35" Nito Teragraplers
16" Eagle racing wheels
Home built 5" Side exit exhaust
RCD full egr delete
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post #4 of 8 Old 09-22-2009, 02:27 PM
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The biggest issue I know of causing overheating is failed EGR coolers flash boiling the coolant that runs through them.

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post #5 of 8 Old 09-22-2009, 06:26 PM
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or bad fan clutch not turning on when ecu gives the signal to do so

1999 F250 XLT 2WD 7.3, 6 spd, South Bend Con OFE, Detroit Truetrac, Tony Wildman tunes, Autometer Boost&Pyro, AFE Stage II, 4" MBRP Exhaust, 2" Daystars, 17x9 DC1 wheels wrapped in 33x12.50 MTZ's

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post #6 of 8 Old 09-22-2009, 09:40 PM Thread Starter
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i think it is the water pump because the water is not circulating,but i cant figure out how to get the damn fan and clutch off.somebody please help me,thanks.
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post #7 of 8 Old 09-28-2009, 05:29 AM
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Quote:
Originally Posted by dunecrazy View Post
i think it is the water pump because the water is not circulating,but i cant figure out how to get the damn fan and clutch off.somebody please help me,thanks.
It probably is your water pump. I just had the same exact issue you are having, my water pump wasn't circulating. The impellars are made of plastic!! Mine seperated right from the shaft.
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post #8 of 8 Old 10-04-2009, 11:27 AM
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Quote:
Originally Posted by Fastrnu2 View Post
It probably is your water pump. I just had the same exact issue you are having, my water pump wasn't circulating. The impellars are made of plastic!! Mine seperated right from the shaft.
just more evidence of that fine international enginering...

04' F350 PSD
4" Superlift
35" Nito Teragraplers
16" Eagle racing wheels
Home built 5" Side exit exhaust
RCD full egr delete
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