Transmission Coolers
Thread Starter
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Junior User
Joined: Apr 2005
Posts: 76
Likes: 0
From: San Diego
Transmission Coolers
There are three ways to hook up a transmission cooler
1. Disconnect lies from the radiator and have only the cooler
2. Run the fluid through the radiator cooler then through the additional cooler
3. Run the fluid through tht additional cooler then through the radiator
It is my understanding that the correct way is # 3.
The reason, the transmission will work fine at the temperature of the radiator and that the problem occurs when the transmission fluid cannot be cooled to that temperature. In addition, it is my understanding that using option # 2 can cause problems, especially with torque converters.
I would like other opinions...
1. Disconnect lies from the radiator and have only the cooler
2. Run the fluid through the radiator cooler then through the additional cooler
3. Run the fluid through tht additional cooler then through the radiator
It is my understanding that the correct way is # 3.
The reason, the transmission will work fine at the temperature of the radiator and that the problem occurs when the transmission fluid cannot be cooled to that temperature. In addition, it is my understanding that using option # 2 can cause problems, especially with torque converters.
I would like other opinions...
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
Option 2 with standard large cooler unless one lives in an area with extended periods of 32d F or colder wx.
If extended cold wx is an issue, then use one of the plate type coolers with internal valve thermostat control such as a "True Cool self regulating".
Put in a bottle of LubeGuard ATF protectant, I've noticed a 20d drop in fluid temp after adding LubeGuard, have inline temp gauge.
If extended cold wx is an issue, then use one of the plate type coolers with internal valve thermostat control such as a "True Cool self regulating".
Put in a bottle of LubeGuard ATF protectant, I've noticed a 20d drop in fluid temp after adding LubeGuard, have inline temp gauge.
Thread Starter
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Junior User
Joined: Apr 2005
Posts: 76
Likes: 0
From: San Diego
We live in Southern Calif also... and we have a house in Las Vegas and a house in Washinton State... so we hit all sorts of weather...
Once upon a time I worked as a line mech for Dodge, GMC and Volvo and all three would void the trans warrantee if options 1 or 2 were used...
That was way back in the '60 and 70's when cars were cars and men were men... Argh...
Once upon a time I worked as a line mech for Dodge, GMC and Volvo and all three would void the trans warrantee if options 1 or 2 were used...
That was way back in the '60 and 70's when cars were cars and men were men... Argh...
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
Both Dana/Tru Cool and DeRale recommend installing their coolers after the radiator tank cooler.
Ford installs their optional tube and fin 2 tube 5x16" after the radiator intank cooler with no thermostatic bypass directly behind the front bumper opening. Most auto manufacturers recommend against install tube and fin type aftermarket coolers because of low flow problems. The plate and fin design has a higher flow rate and is the type used by most auto manufacturers as OEM options and addons.
http://www.dana.com/Automotive_Syste...04_Website.pdf
http://www.bulkpart.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=2&Category_Cod e=cooler-info
http://www.derale.com/ftp/derale_catalog.pdf
take ur pick, mileage and m.t.b.f may vary
Ford installs their optional tube and fin 2 tube 5x16" after the radiator intank cooler with no thermostatic bypass directly behind the front bumper opening. Most auto manufacturers recommend against install tube and fin type aftermarket coolers because of low flow problems. The plate and fin design has a higher flow rate and is the type used by most auto manufacturers as OEM options and addons.
http://www.dana.com/Automotive_Syste...04_Website.pdf
http://www.bulkpart.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=2&Category_Cod e=cooler-info
http://www.derale.com/ftp/derale_catalog.pdf
take ur pick, mileage and m.t.b.f may vary
