hauling question
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Senior User
Joined: Jun 2011
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From: Appling,GA
hauling question
I was wondering with my 95' powerstroke 4x4 automatic tranny ... when carrying a load when is it necessary to turn overdrive off ??????and can you turn it on while on the highway?????
Posting Guru
Joined: Jan 2004
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From: Charlestown, RI
Mine isn't a powerstroke, but...
I was told that keeping the trans out of OD when towing kept the trans fluid moving through the cooler faster. I've actually noticed lower trans fluid temps when towing with OD off.
I was told that keeping the trans out of OD when towing kept the trans fluid moving through the cooler faster. I've actually noticed lower trans fluid temps when towing with OD off.
Fleet Owner
Joined: Jul 2006
Posts: 20,347
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From: Mi'kma'ki
if you notice higher than 200F trans pan/test port temps while towing in OD,then you should suspect the aux cooler not being large enough for your loads.while in OD and towing,this means there is less load on the engine or it wouldn't have up shifted yet.since it did go into od,you have to be going faster.the faster speeds should mean lower trans temps due to more airflow through the coolers.
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