Trans temp 2013 6speed

[cblack13]

Hello all,

this is my first post. I have a 2013 1500 4x4 with a 6 speed and I’m seeing 200+ degrees empty on the trans. I’ve seen posts about people staying considerably cooler even when towing. I’ve flushed the transmission at 110k and replace the trans solenoids and filters and atf 5k miles. Are these trans temps normal? Am I too paranoid? Should I replace the trans temp sensor? I’m probably going to be buying a larger camper around 5-6k lbs. let me know what y’all would do.


Thanks,

 

[Texram155]

I run around 130-150 normal at 80 degrees outside. I get to 200-220 when pulling my 30ft TT.

 

[Fast69Mopar]

Hello all,

this is my first post. I have a 2013 1500 4x4 with a 6 speed and I’m seeing 200+ degrees empty on the trans. I’ve seen posts about people staying considerably cooler even when towing. I’ve flushed the transmission at 110k and replace the trans solenoids and filters and atf 5k miles. Are these trans temps normal? Am I too paranoid? Should I replace the trans temp sensor? I’m probably going to be buying a larger camper around 5-6k lbs. let me know what y’all would do.


Thanks,

Well, if you want to replace the transmission temperature sensor you will have to replace the solenoid pack again because the PCM reads temp from a thermistor on the TRS or the Transmission Range Switch.

 

[cblack13]

Thanks for the responses, so it sounds like My trans is almost toast?

 

[HEMIMANN]

No, that temp is not normal. Way too high. I take it you didn't remove the transmission thermostat? It's probably stuck closed and your oil isn't reaching the oil cooler radiator.

Get the RevMax bypass valve block and get that thing outta there.

 

[Fast69Mopar]

No, that temp is not normal. Way too high. I take it you didn't remove the transmission thermostat? It's probably stuck closed and your oil isn't reaching the oil cooler radiator.

Get the RevMax bypass valve block and get that thing outta there.

The OP's transmission is the 65RFE so he doesn't have the ability to remove the thermostat like he could if it were an 8HP70.

 

[Fast69Mopar]

Thanks for the responses, so it sounds like My trans is almost toast?

I wouldn't say the transmission is toast yet. There are still a few other things that can be inspected before making a determination.

First, does the truck have the original transmission cooler installed? Get yourself a cheap infrared thermometer and start taking some temps. Take the truck on a test drive and monitor the trans temp in the EVIC. Once the trans temp reaches 200° take the infrared thermometer and check the temperature of the trans pan. Then, check the temp of the trans cooler lines at the inlet and outlet of the trans cooler. Checking the cooler line temps will show you if the cooler is doing a good job and working properly.

Another question I have...how is the transmission shifting under normal driving conditions? Does it shift good and firm under heavier throttle conditions?

 

[HEMIMANN]

The OP's transmission is the 65RFE so he doesn't have the ability to remove the thermostat like he could if it were an 8HP70.

I have the 66RFE and it is removable, so other members told me.

 

[caulk04]

Yours is quite different from his.

 

[Fast69Mopar]

I have the 66RFE and it is removable, so other members told me.

The 66RFE utilizes the same solenoid pack as the 65RFE with the grey connector. All RFE's receive their transmission temperature from a thermistor that is integral to the TRS or the Transmission Range Switch and it is not a replaceable part. If there is a suspected failure of the thermistor then the solenoid pack will require replacement.

 

[Bigskyroadglide]

My 11 runs 130. When towing it might get to 160 uphill, in a head wind on a 100 degree day.

I have the aluminum pan with 2 extra quarts of fluid, and change fluid every 30 k. I also run redline C+ fluid.

 

[cblack13]

I wouldn't say the transmission is toast yet. There are still a few other things that can be inspected before making a determination.

First, does the truck have the original transmission cooler installed? Get yourself a cheap infrared thermometer and start taking some temps. Take the truck on a test drive and monitor the trans temp in the EVIC. Once the trans temp reaches 200° take the infrared thermometer and check the temperature of the trans pan. Then, check the temp of the trans cooler lines at the inlet and outlet of the trans cooler. Checking the cooler line temps will show you if the cooler is doing a good job and working properly.

Another question I have...how is the transmission shifting under normal driving conditions? Does it shift good and firm under heavier throttle conditions?

I’ll get a thermometer, that’s an awesome idea. The transmission shifts good and firm. Sometimes it feels a bit clunky downshifting but I think it’s the the nature of the beast.

 

[kurek]

I don't think I've ever seen the high side of 190, towing in Arizona in summer..

 

[Fast69Mopar]

I’ll get a thermometer, that’s an awesome idea. The transmission shifts good and firm. Sometimes it feels a bit clunky downshifting but I think it’s the the nature of the beast.

Using an infrared thermometer will give you an idea about what is happening inside the cooler and inside the sump of the transmission. Let us know what you find.

 

[Burla]

Hello all,

this is my first post. I have a 2013 1500 4x4 with a 6 speed and I’m seeing 200+ degrees empty on the trans. I’ve seen posts about people staying considerably cooler even when towing. I’ve flushed the transmission at 110k and replace the trans solenoids and filters and atf 5k miles. Are these trans temps normal? Am I too paranoid? Should I replace the trans temp sensor? I’m probably going to be buying a larger camper around 5-6k lbs. let me know what y’all would do.


Thanks,

When you drop the pan and do filters, move to ester based redline c+, that fluid is mainly for warm performance, it wont break down like regular atf. But, more importantly bypass the thermo valve immediately. @AFMoulton is leading the way on this.


look up metal filter thread upgrade with synthetic filter options.

 

[Treburkulosis]

I am about to do a transmission service on my 6 speed. It runs 190-203. Mine has ran that temp for 4+ years and never a issue.

 

[HEMIMANN]

Transmission oil isn't meant to run above 140F with >10,000 mile oil change intervals, is the point. Engine oil runs @ 230F, which is one of the reasons we can't wait to change it at 50,000 miles, aside from combustion blowby contamination.

It's Russian Roulette to let these things run north of 140F oil temp and not change oil @ 30,000 miles, max. I said elsewhere what I learned at Mobil Oil about oil oxidation rates........for every 20F above 140F, oil oxidation life is cut in HALF.

 

[CaptOchs]

Mine is around 156 while towing in 86 degrees at 65mph. Camper is 7000# dry. I have seen it climb in the 160's going uphill for several miles. I'm talking engine RPM is 2500 or higher too. I have a 2016 Big Horn with 3.92 gears and 6 speed.

 

[Daw14]

It’s amazing how someone reads something,then starts preaching like it’s the Bible,it’s a FACT, I do not know anything for certain. Hell I may not even be typing this.

 

[AFMoulton]

Your thermostat in the trans lines is bad, that’s why it’s running that hot. Delete it ASAP and f
Put new fluid in also.


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