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Discussion Starter #1
I've been watching my trans temps on the off road pages extra gauges, it's been running about 195 degrees, which I think is a little high, anyone had their trans fluid changed? And how much did it cost?, I was towing my 11,500 lb boat with my Dodge 3500 truck the other day, and the trans temp was about 145 degrees, seams the GC is too high with no real load, any input?
 

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Well, I don’t know about your GC, but my 2012 GC (3.6 engine) transmission temp goes up to about 175 degrees and never much over that. At 100,000 miles I had the transmission flushed and the filter changed at the dealer for around $500. I’m not sure of the amount since it was a few years ago, and I also had them change the spark plugs at the same time.
 

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200 and below is normal. It is thermostat regulated similar to engine's cooling system. Even 205-210 isn't terrible.
 

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I know my '14 GC 5.7L has a "cooler bypass valve" that doesn't fully open the flow to the cooler until somewhere around 195F

In fact, I think mine is bad, and it is going in to the shop tomorrow to get looked at. Transmission temp used to stabilize around 200F, but now it gets up to 230F and beyond (with the HD cooling fan absolutely roaring) during totally boring driving.
 

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Discussion Starter #5
Thanks for the replies, I'm going to buy the trans fluid and filter pan and try an find someone to do the change for me, at 53k miles, I would like to get it done before 60k miles
 

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My '15 hemi trans temp runs 190-195 in regular driving once up to temp, and will run 210-225 when pulling my 6500# trailer
 

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They definitely run hotter than you are used to with traditional transmissions. Mine is slow is to warm up (under 180 deg after an hour of highway driving after a cold start) but a little city driving and it's at 200-205 in no time. 2020 3.6 with tow package.
 

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On my '14 GC 5.7L:
Maxcare has decided that my transmission temp in the 230F-240F range during absolutely normal driving on level ground is "normal"

So that fight is going to be going on, but I'll probably eventually end up fixing it my own damned self :mad:
 

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On my '14 GC 5.7L:
Maxcare has decided that my transmission temp in the 230F-240F range during absolutely normal driving on level ground is "normal"

So that fight is going to be going on, but I'll probably eventually end up fixing it my own damned self :mad:
I'd run it until its cooked itself. $100 for a new trans isn't so bad.

I looked into changing the fluid and pan in mine. Comes to around $300. Again, $100 if the trans ever fails is cheaper.
 
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