jpsawyer

The dealer did the tranny flash to lock-out overdrive but it is still going into over-drive. Did i miss something?

jpsawyer

I just got off the phone with the dealer & he said the flash is supposed to lock 4th out. I asked if they could do the flash so the tranny will do what the TSB said & he said that is the latest flash and they could not do anything about it. *** over

bob4x4

Doing the flash allows the option of making the tow/haul switch into a od on/off switch.It must still be enabled with the drb after the flash.take it back to the dealer,they need to make it work.

Bob

jpsawyer

the dealer told me it is what it is. I am going don south the 30th. I will find a dealer in the Ft. Stewart GA area.

BigIron70

JP, Here's the TSB so you can take with you to dealer. Don't let them give you any BS

jpsawyer

Thanks for the info. Now i can get somewhere.

Deaver

What are the advantages of having this TSB Installed

TonyB

Locking out 4th gear....helpful when towing up long hills by not allowing the trans to shift int and out of 4th gear.

Tony

newbie

This might be a dumb question but here we go. . . I have a 04.5 srw and I tow a 14k goose. I like the concept of the O/D lock out but if I am towing on flat land and the trans is not searching between 3rd and 4th is it ok to switch to non-tow/haul mode? In tow/haul doing 65 mph I am turning 2400 rpm. TIA!

no_6_oh_no

On your truck TH is OD lockout. If it will pull OK leave it in OD and save the fuel.

If it starts hunting and shifting then use TH, or, buy a Smarty and it will almost never downshift.

newbie

Thanks for the response! Sorry for the hijack.
Plans are in the mix for something along those lines Smarty or Edge w/ Attitude