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T/C or Tranny HELP

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Old Jun 24, 2007 | 05:17 PM
  #1  
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Benny2002
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From: Bradenton FL
Exclamation T/C or Tranny HELP

On the road this afternoon, it was HOT, my tranny was running about 190degrees, stop and go traffic. Normally when i come to a stop my idle drops to about 680rpms, today it wouldnt drop below 760, the whole way home like 20 miles, it felt like the T/C wasnt disengaging like it should. I know our weekest link is our tranny, whats going on????????
 
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Old Jun 24, 2007 | 07:33 PM
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JOE-M
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From: N. Georgia
Mine has started doing that this summer (it might have always did it, but I never noticed it until now). It only does it with the temps up around 180* or higher. At lower temps it won't do it at all. 136k on the transmission.
Joe
 
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Old Jun 24, 2007 | 08:13 PM
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Thanks joe, anyone else have exp with this???
 
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Old Jun 24, 2007 | 09:49 PM
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bump to the top...
 
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Old Jun 24, 2007 | 10:14 PM
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Maybe your fan clutch kicked in and it kept the RPMS up? Are you on stock gearing? If so your temps are going to run hotter.
 
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Old Jun 24, 2007 | 10:37 PM
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From: Bradenton FL
Ya im on stock gearing as far as i know, rpms seem to be what others are at speed with 37s, The fans not running "engaged", i just took a short trip tranny at 160deg, its still doing it im starting to get worried. Its only like 300rpm difference but my truck has never done this trick till today.
When i pull up to a light it stays at 750rpms then if i put it in neutral it drops to 680, it used to always do that on its own till today.
 
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Old Jun 26, 2007 | 01:45 AM
  #7  
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Talking Trans

When was the last complete trans flush? What I have seen is the converter goes first and you don't even feel it and the particulate contaminates the trans. Acheap test so to speak is a fluid change and I mean all the fluid. Drill and tap the converter for 1/4 pipe plug, wash out the pan and screen then refill with type "F" fluid. This doesn't have all the slip-n-slide additives. Could get you through till you find the golden egg.
 
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Old Jun 26, 2007 | 03:29 AM
  #8  
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dddenio
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How many miles on your truck? Did you check fluid for contamination, how many miles on fluid? I wouldn't worry about the idle rpms, just shifting. You say it doesn't feel like it's disengaging?

Plan to get a BTS from Brian's Truck Shop in Lead Hill, AR. I'll be the last trans you put in there. Running big tires, you'll love the new trans. The stock trans is built so poorly.
 

Last edited by dddenio; Jun 26, 2007 at 03:32 AM.
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