That's normal range. When you consider you engine operates around 200F, it's not bad at all.

 

Really? That's reassuring.
What about towing 7000 lbs? I am told to watch the transmission temperature and not let it get above 220 F. 195 is not far from 220 or is that when the cooler kicks in?

 

and... where is the transmission sensor?
Someone told me it affect the temperature reading
I guess GM, Ford and Ram may have different temperature readings?
So if 195 on a 35 F is normal, how high is too high when towing?

 

The sensor is located inside the transmission itself and not in a line or the cooler. You're seeing 195F with an ambient temp of 35F because there is a thermostat built into the cooler, so even if it were 70F outside, you'd still see a minimum operating temp in this range. I haven't seen a published number from Chrysler regarding max fluid temp, but 220F is pushing the edge of what I would call a safe limit.

 

Since I don't know anything about transmission, I am trying to educate myself and i do appreciate your input and help
Pardon my ignorance and the stupid questions but won't towing anything bring the temps up considerably? I just worry about 195 + towing will raise temps.
The 195 I got the other day was highway driving, flat terrain and 35F
I took a drive today about same terrain, 24F, small country roads and it didn't climb up above 175, numbers were much lower.

 

Actual temp will depend on the load your towing as well as ambient conditions. As long as the trans temp warning indicator doesn't come on, you'll be fine.

 

Well, thank you for keep it simple for me
in other words, I should not worry too much about it...just keep an eye on it
thanks

Brigitte

 

My normal trans temp is around 59c however I did tow a 6000lb bay liner and on that trip my trans got up to 69c or 156f, have the numbers posted here http://www.ramforumz.com/showthread.php?t=118387

 

I only have had my truck for 2500 miles so take it for what its worth but the other day I drove 400 Miles, 200 miles one way and back in the same day and the highest I ever saw on this trip was 127 and I was monitoring bc i saw a thread with a guy asking if the 120s was to low. This was an empty truck but with about 1000lbs of people but not towing. This was however driving in the hilll of the Catskills in NY and approx 32F out. Personally I think 195 is high especially if not towing anything I would watch it but from what i've seen 160-180 is normal operating and 220 is where you begin to overheat! Hope that helps

 

^^^^ I agree that 195 seems high considering that I was towing 6,000 lbs in hills and only got up to 156f

 

The stock transmission cooler on the Hemi equipped trucks are actually pretty good for 98% driving and towing needs.

When I was out for a drive toda, the outside temperature was around 50F. During a 3 mile crawl speed in heavy stop/go traffic, the transmission temperature went to 176F which is fine.

However and ironically, once out of traffic and driving up 1.5 miles up the steepest hill in the area to get home (I live at the highest point in the area) the transmission temperature actually dropped down to 162F while going up the hill.

Just goes to show that cool clean air in front of the truck makes a world of difference with transmission temperature...

For towing with a 4,000 lb trailer, in the summer at 100F. I have seen the transmission temp only get up to 210F on a very steep grade (3500' ascent in 8 miles.)

 

Thanks for all the replies, I'll keep driving and monitoring the temps. If they stay in the high ranges for no reason, I'll bring it in the shop.

 

went for a drive this morning, did not go above 110. temps outside were 18F
Did the fluids flush and change at the Dodge dealer, I would hope they know what to put in the transmission LOL

 

Yes i forgot about that. I just remember seeing synthetic on rear diff. Didn't mean to pass on incorrect info

 

been watching transmission temps for the last few days and it averages around 123F
I don't know where I got the 195F number from.... I either made a mistake or it did read that but only the one time and that was just one day after I had a transmission flush and fluid changes at the Dodge dealer.... I'll keep an eye on it but I think we're good now.

 

If it was the day of or day after the flush I would suspect you had some entrained air in the fluid causing the heat to not be dissipated as it should. As the fluid is worked the air gets taken out, so this may explain the high temps you saw then and the now normal temps you are seeing now.

 

Sounds good may have mistakenly read coolant temp

 

but... yes, it was the day after the fluid change. Go figure.
Seems normal now
thanks for the help.

 

In regards to transmission normal operating temps, reading what the new 2013's are about, the objective is to get the engine and transmission up to normal (optimal) operating temp as quick as possible in regards to efficiency. They are talking about 190 F for the optimum running temperature for the transmission, so I think anything close to that is fine. I know concerns are that temps up to 220 F would be nasty but that's what the tranny cooler is for, keeping it in check. This is redundant info but educating is good.

 

Thanks for this thread! I also tow a trailer, and transmission is my biggest worry.

 

New Ram owner (couple months) My transmission temps run in the 180 degree area, Outside temp was 32 degrees. I haven’t seen it above190, but this is local driving, no x-way driving and never towed... the temp bar (in evic) quickly goes to just above half way mark and stays there. This seems really high to me and a concern because this Summer when I am towing, outside temps will be at or above 100 degrees.... is there a thread that discusses was to lower this temp?

 

I just saw Otterdriver’s Post ... where it was, I’ll never know... thank you Sir for your information