Duramax Diesels Forum Truck of the Week
Old 02-05-2017, 06:19 PM
jlawles2 jlawles2 is offline
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The only way to know what the trans temp is during normal driving is to have an external gauge. I am running scangaugeII to see the trans temps. I check it occasionally by activating the tow haul mode which makes the volt gauge go away and get replaced by the trans temp.

I did crawl around under the truck and look around. They put a small fuel cooler in front of the tank. Its about 6" tall by 10" long.
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Old 04-03-2017, 03:39 AM
Duvel Duvel is offline
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Any updates?
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Old 04-03-2017, 07:15 AM
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FROGMAN524 FROGMAN524 is offline
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What temp does the transmission have to get to before you can put your foot in it safely?

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Old 04-03-2017, 07:21 AM
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Mike L. Mike L. is offline
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Originally Posted by FROGMAN524 View Post
What temp does the transmission have to get to before you can put your foot in it safely?

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120F or higher.
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Old 04-05-2017, 01:45 PM
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beach_33 beach_33 is offline
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Originally Posted by Mike L. View Post
120F or higher.
Does this go for lml 6 speeds as well? I actually have to drive mine kinda hard to get up to 120
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