Downshifting with Predator [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Downshifting with Predator


Mezzanine
12-13-2007, 02:40 PM
I live in Southern California where I sit in traffic about 80% of the time on my way to work. I have the Predator loaded at 85hp and I will be traveling about 70mph and when I see the traffic start to get congested, I let my foot off the gas ( don't touch the brake) and it almost always downshifts isntantly and sits at 3300 rpms. If I hit hit the gas again it will go to about 3700 rpms until it shifts again. I don't understand the problem. Do you think its a Predator issue or a truck issue?


Andy

8100 Power
12-13-2007, 02:48 PM
First. I would set the truck back to stock. That will tell you if its the tuner or the truck...

Any codes?

Mezzanine
12-13-2007, 03:00 PM
No, No codes. I'm going to take it back to stock tonight and see if it continues to do it.


Andy

148CMEUPHI
12-14-2007, 08:51 PM
Maybe get the tranny reflashed? Sounds like your ally has learned some bad habits.