TSB 10-12-4 5.4L 3V and 6R80 transmission - Delalyed/harsh downshift above 40 mph.

[MagicMtnDan]

Dealers don't want to do TSBs just because people find out about them on the internet or from friends. And I'm sure this is driven by the manufacturers. The "trick" is to go to your dealer and tell them about the problem you're having (and of course you describe it just like it's described in the TSB). The dealership's service department will write you up, take your truck and look for any TSBs and, viola! There it is - look, a TSB that addresses that exact problem :mrgreen: Funny how that works.

 

[FSM06]

dealers don't want to do tsbs just because people find out about them on the internet or from friends. And i'm sure this is driven by the manufacturers. The "trick" is to go to your dealer and tell them about the problem you're having (and of course you describe it just like it's described in the tsb). The dealership's service department will write you up, take your truck and look for any tsbs and, viola! There it is - look, a tsb that addresses that exact problem :mrgreen: Funny how that works.

b-i-n-g-o!!!!!!

Fsm

 

[FSM06]

dealers don't want to do tsbs just because people find out about them on the internet or from friends. And i'm sure this is driven by the manufacturers. The "trick" is to go to your dealer and tell them about the problem you're having (and of course you describe it just like it's described in the tsb). The dealership's service department will write you up, take your truck and look for any tsbs and, viola! There it is - look, a tsb that addresses that exact problem :mrgreen: Funny how that works.

b-i-n-g-o!!!!!!

Fsm

 

[Xjrguy]

Getting this done today.

How do I verify the reflash was actually performed?

Is there a version number I can check via the dash?

Thanks in advance.

 

[Xjrguy]

Getting this done today.

How do I verify the reflash was actually performed?

Is there a version number I can check via the dash?

Thanks in advance.

 

[Xjrguy]

Found my answer:

To verify that your PCM/TCM has had the TSB applied, a scanner needs to check for this code:

TCM_FILENAME = AL3P-7J104-BC

 

[Xjrguy]

Found my answer:

To verify that your PCM/TCM has had the TSB applied, a scanner needs to check for this code:

TCM_FILENAME = AL3P-7J104-BC