99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Iam planning on ordering a Hayden cooler for my 99SD. I have seen a couple of install articles showing a optiona fan. Is this needed? My trans only heats up when towing in stop and go driving or steep grades.
If you don't have the upgraded radiator with the tranny oil to water (OTW) cooler in the bottom, I'd recommend a cooler with fan to handle those stop and go and slow speed hill climb situations. I do not have the OTW cooler on mine and even with the large True Cool Max aux cooler I get uncomfortable in the situations you describe.
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Early 99 F250 PSD (XLE4) XLT, Extended Cab, Short Bed, 4X2, BTS Trans/TC, 3.73 Limited Slip, Transfer Flow 48 Gal. Mid-Ship Tank
Western WA - Member since August 2001
Look into finding one of the Torqueshift Coolers! Richter69 put one on my unit listed below and it went from 220 to 230 hauling my camper to I could not make it go over 180 on a HOT Oklahoma afternoon with air temp of about 103 and pavement temps of about 135. Hot enough that you stand on it with your tennis shoes they start to feel soft!
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96 Ford Powerstroke, Centarus Converson CC, 4.10, Long bed DRW, 4 pos TWildman chip, SD HPOP, 6.0 Intercooler, 3.0 downpipe and Bully Dog 4.0 exhaust, AFE intake system, pyro (pre turbo),trans gage (located in test port), Custom Fabion Motosports Torque Converter, pump mods, Tugger trans kit, Torqueshift tranny cooler, Firestone air bags, Rancho RX 9000 adjustable shocks, and baby SWAMPS!!
Pulling a 2000 American Star, 34RLCK bedroom and living room slides, w/d stack ,12,640 lbs.
Total weight 19,300. New addition 20ft VIP Bowrider boat towed behind 5th wheel, total length 74 ft, 24,000 lbs!
Old_machinist,
No flames intended, the issue with the early '99s is that unlike on your '96, Ford did not use a tranny cooler in the bottom of the radiator, just an oil to air cooler sandwiched between the other heat exchangers. In traffic and slow speed hill climbs with the torque converter unlocked, the air flow over the coolers is just too little to keep things comfortably cool.
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Early 99 F250 PSD (XLE4) XLT, Extended Cab, Short Bed, 4X2, BTS Trans/TC, 3.73 Limited Slip, Transfer Flow 48 Gal. Mid-Ship Tank
Western WA - Member since August 2001
Don't worry I have flame proof undies LOL. Jon unhooked the water to oil part of the system. All I have is the huge torqueshift cooler. Mine is not a daily driver as I only use it to haul camper or take it out once a week or so to keep it limbered up and to get my "fix"
Grant
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96 Ford Powerstroke, Centarus Converson CC, 4.10, Long bed DRW, 4 pos TWildman chip, SD HPOP, 6.0 Intercooler, 3.0 downpipe and Bully Dog 4.0 exhaust, AFE intake system, pyro (pre turbo),trans gage (located in test port), Custom Fabion Motosports Torque Converter, pump mods, Tugger trans kit, Torqueshift tranny cooler, Firestone air bags, Rancho RX 9000 adjustable shocks, and baby SWAMPS!!
Pulling a 2000 American Star, 34RLCK bedroom and living room slides, w/d stack ,12,640 lbs.
Total weight 19,300. New addition 20ft VIP Bowrider boat towed behind 5th wheel, total length 74 ft, 24,000 lbs!
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