Tranny cooler

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Aug 26, 2009 | 08:27 PM

axel 56

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Tranny cooler

I will be adding a trans cooler to my truck do I have to bleed it or do I just plug and play ?

Aug 26, 2009 | 08:54 PM

PLC7.3

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From: Manitoba

Instructions will be in the box usually..... what truck do you have.

Aug 27, 2009 | 12:22 AM

axel 56

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94 sc 4x4 e4od f250 355 ls

Aug 27, 2009 | 07:49 AM

WEST AUSSIE 94 250

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From: Western Australia

Generally they will self bleed if they are on the low pressure line not 100% on the e4od but would say is ok to just hook up and then start engine. Be gentle on first shift after and check for leaks regular after fitting, auto trans fluid can be sneaky and start leaking a couple of days later.

Aug 27, 2009 | 10:20 AM

axel 56

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Thanks thats good to now. the truck already has a small cooler . I just got a 16 ft covered trailer to carry the hunting stuff so I want to add another cooler.

Aug 27, 2009 | 02:14 PM

axe_handle

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From: Snohomish, WA

Quote:

Originally Posted by axel 56

Thanks thats good to now. the truck already has a small cooler . I just got a 16 ft covered trailer to carry the hunting stuff so I want to add another cooler.

You might think of putting the 2nd cooler after a thermostat to keep from over cooling the fluid in the winter.

Aug 27, 2009 | 06:02 PM

axel 56

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What temp would be to hot and whats to cold. And I think I read some were that you should not use Overdrive when towing ?

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Aug 27, 2009 | 08:24 PM

axe_handle

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From: Snohomish, WA

Quote:

Originally Posted by axel 56

What temp would be to hot and whats to cold. And I think I read some were that you should not use Overdrive when towing ?

I've been told that 160 degrees in the pan is about the ideal temperature, and behond 230 is bad on the high end, and below 110 is probably too cold to bake off any condensation that gets in the system.

Honestly my set up runs pretty cold. In the fall/winter/spring here i don't see much above 120 unless I'm flogging on the truck in deep snow with the TC unlocked. If the truck is moving I don't see beyond 190 ever, but I also have a triple disk clutch TC.

Towing in overdrive? Well I wouldn't do it without a temp gauge, and not so much up hill. It just depends on the load. I do tow up hill in OD, but I have tons of reserve cooling capacity for the transmission, a carefully watched gauge, and a beefy TC to keep things locked up. EGT is usually what brings me to shift out of OD, but that is a different discussion. Bottom line is I'll run in OD provided the trans temp is good and the EGT lets me get away with it.