towing rpm
I have a 2004 dodge CTD with 3.73 rear end when i tow my 5ver in tow haul mode my rpm,s are runnibf 2500 rpm at 60 62 mph, sound about right? truck is a 4speed auto
Forum Discussion
2500 Grunt wrote:
The 2005 year Cummins is the only year where the tow/haul button once pressed only alters the shift points in gears 1 thru 4 or raises the rpm shift points. It will not lock out 4th gear (overdrive) unless you purchase an aftermarket OD lock out switch/box. Don't know why Dodge engineers did this but they switched back to the other way in 06? To the OP, sounds like you are running in 3rd gear at 2500 rpm's unless you are running 4.56 gearing in 4th? With stock tires with 4.56 gearing in 4th gear you should be around 2300 rpm's at 65mph +/_ (can't find the gearing chart).
Just to clarify, 06 here and the button is a three way switch. Yes push it once for tow/haul which changes shift points, twice it will lock out over drive, third push will be normal operating condition. I believe 2004.5 back they were only a two way switch which would lock out over drive.
