Why does my transmission get hot quick.. - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 02-09-2012, 07:37 AM   eBay Motors  #1 (permalink)
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Why does my transmission get hot quick..

Everytime i put a load (not too heavy) on the truck i drive a few miles and trans temp shoots to 210 and then goes into limp mode..

Or when its hot outside and i get caught in traffic trans gets hot and then goes into limp mode..without a load on it.

I check the trans oil its clean like new,changed filter,cleaned cooler.

What can it be?

Thanks
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Old 02-09-2012, 07:39 AM   eBay Motors  #2 (permalink)
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Now that's a stumper.....
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looking for more fuel and air....
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Old 02-09-2012, 07:43 AM   eBay Motors  #3 (permalink)
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it's not overfilled is it??? that'll cause issues.

Did you change the external or internal filter?

If you did only use Allison filters as knock offs do not perform as well
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Old 02-09-2012, 07:46 AM   eBay Motors  #4 (permalink)
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Stupid question, but you do have the right fluid in their right?
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Old 02-09-2012, 07:48 AM   eBay Motors  #5 (permalink)
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Whats codes are popping? Is the Torque Converter Locking?
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Old 02-09-2012, 07:56 AM   eBay Motors  #6 (permalink)
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do you have a replacement front bumper?
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Old 02-09-2012, 08:21 AM   eBay Motors  #7 (permalink)
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Quote:
Originally Posted by lddrew View Post
it's not overfilled is it??? That'll cause issues.

Did you change the external or internal filter?

If you did only use allison filters as knock offs do not perform as well
changed both,used napa filters..
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07.5 LMM crew cab LTZ,cold air intake,4" pipe from turbo back,edge programmer,pcv re-route,egr blocking plate...
88 mustang drag car,sb,ss,28s on juice!
http://i294.photobucket.com/albums/m...CE/mos-1-1.jpg:rockin
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Old 02-09-2012, 08:22 AM   eBay Motors  #8 (permalink)
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Quote:
Originally Posted by mcle6103 View Post
stupid question, but you do have the right fluid in their right?
whats the right fluid? I use mobile 1..
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07.5 LMM crew cab LTZ,cold air intake,4" pipe from turbo back,edge programmer,pcv re-route,egr blocking plate...
88 mustang drag car,sb,ss,28s on juice!
http://i294.photobucket.com/albums/m...CE/mos-1-1.jpg:rockin
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Old 02-09-2012, 08:27 AM   eBay Motors  #9 (permalink)
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Quote:
Originally Posted by jmaz268 View Post
whats codes are popping? Is the torque converter locking?
cant remmber the codes,wont go passed 2,000rpms
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07.5 LMM crew cab LTZ,cold air intake,4" pipe from turbo back,edge programmer,pcv re-route,egr blocking plate...
88 mustang drag car,sb,ss,28s on juice!
http://i294.photobucket.com/albums/m...CE/mos-1-1.jpg:rockin
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Old 02-09-2012, 08:45 AM   eBay Motors  #10 (permalink)
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X2 on the fluid...jus out of curiousness...
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