Help keep my 7.3PSD cool during towing - Ford Powerstroke Diesel Forum
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Old 04-12-2014, 04:58 PM
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Help keep my 7.3PSD cool during towing

I have a 2003 F250 SD PSD, and when I pul my 33CK it does great except when I keep on the throttle uphill the temp wants to climb rapidly at 2400 RPM. I need some ideas to help keep it cool during long hauls, the transmission temp does fine but the engine temp climbs. Any ideas?

Thanks
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Old 04-12-2014, 05:03 PM
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have you ever done a thermostat, waterpump, or cooling fan clutch? Cleaned your radiator fins? just things to check.
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Old 04-12-2014, 05:07 PM
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Put a 6.0 intercooler and trans cooler in it. Helped me with my fifth wheel


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Old 04-12-2014, 06:00 PM
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check the rad the fins are probably full off trash, get it washed and see what it dose
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Old 04-14-2014, 06:05 PM
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Take you foot out of it.

Check your fan to see if it's working properly, you might have to add an auxiliary fan and turn it on when climbing hills.
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Old 04-28-2014, 10:12 AM
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7.3 changed to 6.0 cooler

I had my stock trans cooler changed out to a 31 roll trans cooler. Big difference. The trans does not overheat. My problem is that the mechanic also disconnected the trans fluid going into the radiator. What is anyones take on this? He says it gets clogged up if not disconnected. I am thinking of reconnecting it.
Also what is the function of the bypass valve? Some say to take it out.
Thanks Ken
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Old 04-28-2014, 12:02 PM
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How hot does the engine get in degrees, water and oil. How are you measuring them?

Are you watching preturbo EGTs too (recommended)? If so, how hot are they getting?

About the tranny cooler, it is normally recommended that the oil first run through the factory radiator port then to the auxiliary cooler then back to the tranny. On the other hand, you say your tranny temps are OK as is. How hot does that get in degrees?
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Old 05-02-2014, 12:38 PM
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Quote:
Originally Posted by kenwood View Post
I had my stock trans cooler changed out to a 31 roll trans cooler. Big difference. The trans does not overheat. My problem is that the mechanic also disconnected the trans fluid going into the radiator. What is anyones take on this? He says it gets clogged up if not disconnected. I am thinking of reconnecting it.
Also what is the function of the bypass valve? Some say to take it out.
Thanks Ken

I would reconnect it to the radiator. While I suppose anything could become clogged it's no more susceptible than your OTA cooler, and I have never heard or seen a documented case where this has happened.

The bypass is there to keep fluid moving in case something does get clogged. It's a safety measure more than anything.
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