Wolftrk99

iTrader: (5)

Damn must be nice.... Lol

blindawg

It hits all 6 gears! Although at this point in time cruise doesn't work, nor does tow haul. So not sure what's going on there, but pretty sure it's a tune issue.

blindawg

Any suggestions Ken?

Wolftrk99

iTrader: (5)

Cruise and tow/haul if memory serves are controlled through bcm...did you have to modify your crossmember at all???

blindawg

Correct on it going through the BCM.

I did not alter the crossmember. I'm assuming you're suggesting a ground?

Thanks,
Branden

Wolftrk99

iTrader: (5)

No just curious how direct aswap it is..... Want to do thisto my 08 yukon..... Thinking you may need to have bcm reflashed to get cruise and tow haul to work

iamkeniff

iTrader: (16)

I have no issues with my cruise, tow/haul, and i have the speedo on my scanner using hptuner and efilive with no issue. Yet i used the dealer to swap in my denali OS. Rewrote the ecm and tcm as a "replacement".

As for the tcm that sucks big time man

The 4wd crossmember is direct swap due to the 6spd not changing locations from the 60/65/70e combo. On a 2wd you will need a crossmember or make/modify yours. I will be upgrading to a custom mount and cutting the oem mounting points off on mine very soon

blindawg

I got the cruise and tow haul figured out. I had a VIN for an 08 Denali, so that's what I flashed in with GM stuff. Then I took my EFILive and flashed in an 07 Denali tune because my truck is an 07. Just figured it would work better that way.

Turns out I was wrong. Lol. I flashed it back to that 08 program and everything works fantastic. Took it for a 150mile trip over the weekend and it was great! I was going 85 getting 14MPG instead of 75 getting 14MPG. So I can't complain too much! Although, at WOT it skips a gear once it hits 5700RPM. Haven't really looked at the shift points yet, just want to make sure I don't have any leaks and the shifts are nice and firm feeling.

Thanks for the help guys!
Branden

Wolftrk99

iTrader: (5)

Were you able to get the tu/td to work?? And what wires do you have to move/connect where??

motohead911

iTrader: (1)

Have you figured out the TUTD yet? And what tune are you running for the ECM?