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Old 08-21-2017, 08:26 PM   #1
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Tranny temp

I have read many threads about tranny temp must be cooler than like 165 but my 2016 GMC sierra with the 5.3 always rides at 195 when it's warmed up . I think it's thermostatically controlled . Is this correct ? Should I think about a tranny cooler? I'm towing a brand new 2108 271RL sunset trail starting this Saturday for the first time
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Old 08-21-2017, 08:45 PM   #2
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I suggest you ask the service manager (not the salesman) at the dealership where you purchased your truck what GM has to say.

Myself, I've never owned a pickup either GM or ford that didn't run at or around the 200 degree mark when I was towing. When it was easy going, temp usually was under 200. Tough towing conditions it would run around 200 or some over. Those temps don't bother me. I think that's normal.
There, that's my 2 cents worth.
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Old 08-21-2017, 09:16 PM   #3
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Usually run around 195. Been like that since I bought it.
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Old 08-21-2017, 09:30 PM   #4
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Thank you Lord I will definitely ask the service manager
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Old 08-22-2017, 07:39 AM   #5
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Also ask him about installing an external cooler for the tranny.
Myself I think it would be a good idea if you don't have one already.
If you get into mt. towing you will notice a rise in temps on the tranny.
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Old 08-22-2017, 12:04 PM   #6
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Temps rise due to shifting, not necessarily towing.
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Old 08-22-2017, 12:22 PM   #7
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Quote:
Originally Posted by markandkim View Post
Temps rise due to shifting, not necessarily towing.

Towing creates shifting. Which in turn creates higher temps.
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Old 08-22-2017, 09:14 PM   #8
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Mine never gets hot. I posted a temperature for mine while I was towing somewhere on the forum, but I don't remember where or what it was. On my way home last night from the eclipse, I was scrolling through the driver info center while I was refueling. The tranny was 136 degrees.
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Old 08-22-2017, 11:05 PM   #9
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Quote:
Originally Posted by DavisK View Post
Mine never gets hot. I posted a temperature for mine while I was towing somewhere on the forum, but I don't remember where or what it was. On my way home last night from the eclipse, I was scrolling through the driver info center while I was refueling. The tranny was 136 degrees.
Do you have a 2016 Gmc truck with a 5.3 and were you towing? I'm trying to see if all same year or newer chevy or Gmc pickups all run the same tram temp one they warm up 195 ish and if I should be taking it in for service or get a tranny cooler installed
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Old 08-23-2017, 07:43 AM   #10
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Quote:
Originally Posted by DavisK View Post
Mine never gets hot. I posted a temperature for mine while I was towing somewhere on the forum, but I don't remember where or what it was. On my way home last night from the eclipse, I was scrolling through the driver info center while I was refueling. The tranny was 136 degrees.

Curious -- were you towing the 5er, and how long had you been stopped when you seen a 136 degrees?

Here is a good link with lots of info.
http://www.crossroadsowners.com/foru...ado-11709.html
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