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Is it really possible to "Overcool" tranny fluid??

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Old 09-19-2007, 05:07 AM
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Default Is it really possible to "Overcool" tranny fluid??

Just like the title says...I thought the cooler the better. What will happen if its to cool?
Old 09-19-2007, 06:31 AM
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From what I have read its damn near impossible to overcool an automatic transmission.
Old 09-19-2007, 08:56 AM
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Some of the northern states may have a problem with cold fluid in the winter , but that's about it ! Once your engine is up to temp your transmission is not going to be too cool !
Old 09-19-2007, 09:27 AM
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With the fliud cooler the PCM may use the cold tables alot but I dont think there would be any issue there since the trans would actually be cold. But considering there are cars in canada and alaska where the temp go to 40 ellow and it would take a very long time to warm up even with just the stock cooler. I dont see where you really could get and issue with the fliud being to cold.I have seen it at -5 degrees and it really dosent feel alot different viscosity wise even then. A freind of mine years ago thought it would get thick like oil does so we put some in a deep freeze lol.
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Old 09-19-2007, 10:05 AM
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With an external cooler in cold climates at highway speeds the fluid will gel and not circulate.
This causes a melt down because of no fluid returning to the lube circuit.
It is best to connect the coolers in series parallel.

That way you get the best of both worlds.

A good frontal cover will also help prevent freeze up.

I know.
I live in Saskatchewan Canada, where it gets colder than a titches wit.
Old 09-19-2007, 10:23 AM
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So... in front of the passenger tire, behind the lip of the air dam sound good?
Old 09-19-2007, 03:16 PM
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[QUOTE=Stuarta]....It is best to connect the coolers in series parallel.....QUOTE]


Series parallel, huh? I guess that would be the best of both worlds.
Old 09-20-2007, 12:38 AM
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So, I should have no problem in Germany bypassing stock cooler with an aftermarket one with a fan right? I don't plan on driving it around in the snow so it would'nt be running in sub zero temps.
Old 09-20-2007, 03:10 AM
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[QUOTE=JonCR96Z]
Originally Posted by Stuarta
....It is best to connect the coolers in series parallel.....QUOTE]


Series parallel, huh? I guess that would be the best of both worlds.
Yes.

To connect in this fashion you need 2 "H" fittings.

This allows both coolers to be used in high temperature conditions or only one in extreme cold conditions.
It bypasses the external cooler and still allows radiator cooler flow to provide lubrication.
Old 09-20-2007, 03:30 PM
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[QUOTE=Stuarta]
Originally Posted by JonCR96Z
Yes.

To connect in this fashion you need 2 "H" fittings.

This allows both coolers to be used in high temperature conditions or only one in extreme cold conditions.
It bypasses the external cooler and still allows radiator cooler flow to provide lubrication.
It just called parallel. And you would only need 'T' fittings.



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