Transmission drain and fill

Has anyone done this yet that would like to share? Is it the same process as the last gen? Will the paper clip in the OBD work the same?

 

The 2/2.5 gen is simple drain, fill and shift through gears.

3rd gen has couple extra steps after drain, fill and shift through gear. Air bleed oil pump and reset ATF thermal degradation estimate.

 

for what its worth i did a drain and fill on my third gen just measured what came out put back the same amount,was about 20000 miles ago all i do with my truck is tow everythings been great ymmv but drain and fill seems to be fine to me

 

Do it cold - drain the pan, measure what comes out and put that exact amount of OEM back in. Repeat once each week after for 3 weeks. All good for another 30K if you tow or 60k if not.

 

Thanks, makes sense to me if both fluids are the same temp the drain and fill with same amount can't go wrong.

 

Subscribed

 

So how does one "air bleed oil pump" and "reset ATF thermal degradation estimate"

 

The resetting the thermal degradation counter isn’t new and it’s done through TechStream. It’s only supposed to be done when you change more than half the fluid.

 

Using Techstream.

AIR BLEED OIL PUMP WITH MOTOR ASSEMBLY

NOTICE:

Bleed the oil pump with motor assembly after replacing the automatic transmission assembly or replacing the automatic transmission fluid.

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

HINT:

Do not start the engine.

(c) Turn the GTS on.

(d) Enter the following menus: Powertrain / Stop and Start / Active Test / Oil Pump.

Powertrain > Stop and Start > Active Test
TESTER DISPLAY

Oil Pump

(e) Perform the " Oil Pump" Active Test for 10 seconds or more.


ATF THERMAL DEGRADATION ESTIMATE RESET

NOTICE:

If either of the following conditions is met, perform ATF Thermal Degradation Estimate Reset.

• The ATF has been replaced.
  HINT:
  
  If 50000 or more is displayed for the Data List item "ATF Thermal Degradation Estimate", thermal degradation of the ATF is suspected. Perform ATF Thermal Degradation Estimate Reset after replacing the ATF.
  
  
• Approximately 50% or more of the ATF has been replaced during a repair of the transmission or a similar operation.

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

NOTICE:

Do not start the engine.

(c) Turn the GTS on.

(d) Enter the following menus: Powertrain / Transmission / Utility / ATF Thermal Degradation Estimate Reset.

Powertrain > Transmission > Utility
TESTER DISPLAY

ATF Thermal Degradation Estimate Reset

 

I'd just not worry about it since I knew the fluids were fresh, or pay the Stealership to do something I would not trust them to do.

 

How many quarts for drain and fill - need to make sure have enough on hand.

 

I'd say to be safe have 5 qts on hand. It won't go bad so if you buy extra it will keep until you do the next drain and fill a few weeks later. I will have to look in the book and see what it says the capacity is - usually have one more quart on hand than what the book says it needs for total - ie 12 quarts capacity at 3 drain and fill would be 4 quarts per drain and fill IF 4 quarts is the measured amount per drain. Thus have an extra quart on hand.