Exhaust brake behavior questions

[bcbender]

From what I recall that’s how my 18 worked. I generally would lightly hold the brake pedal to get a little trailer braking during EB decel.

I would only add that in TH mode it down shifts to keep the max braking from the EB,. when NOT in TH mode I have found it does not downshift by itself.

 

[AH64ID]

Yes - I have all the latest updated software. I can use my scanner to make the transmission relearn my driving style, but that just affects shift points and governor pressure - not the way it responds to deceleration command input from the brake application.
I guess I'm going to have to make a video to demonstrate what I'm talking about. Timing the deceleration speeds from 60 mph until 10 mph would also be illuminating.
Yes - I had a 2013 dually (4.10 gears) with the 68RFE before this 2016 with the Aisin and yes, the combination of the newer turbo and the Aisin transmission has almost double the deceleration power that the older setup had. Both trucks had the max tow package.

A video wouldn’t hurt, but what you are describing seems normal.

The 2013 and 2016 should have the same turbo, the HE300V.

I would only add that in TH mode it down shifts to keep the max braking from the EB,. when NOT in TH mode I have found it does not downshift by itself.

Correct, on the pre-19 P/U Aisin.

 

[GJolicoeur]

A video wouldn’t hurt, but what you are describing seems normal.

The 2013 and 2016 should have the same turbo, the HE300V.



Correct, on the pre-19 P/U Aisin.

Ah - good to know. So, with the same turbo, then the difference is in the aggressive downshifting from the Aisin that seems to make the difference I noticed between my 2 trucks.

 

[Cummins12V98]

I run TH EB all the time. Mine decelerates rapidly by simply letting off the go pedal!

 

[monovasia]

I run TH EB all the time. Mine decelerates rapidly by simply letting off the go pedal!

Same here