HI Mike! Yes it only runs hot when it's towing. I'm wondering if I should go back to the factory 203*thermostat as I dont recall it overheating stock but not a 100% sure. Best Regards, Byron

Not sure if its the precription I'm on but it definately seems to perform better.My idle even sounds better? So far good job guys...........Iron

Hi Folks !

2009 5.7 Dodge Ram Hemi 4X4
Programer U7137
9r08.crom previous/ currently updated to 9t09e today
Use 91/93 octane Diablo tunes
180* thermostat
Reduced fan settings by 20 (201* current setting on programmer)

While towing my 4500lb boat my truck will shut down due to over heating which is ...

Thanks Mike............Iron

U7137/93 performance tune
2009 Dodge Ram 1500 5.7L Hemi
Crew Cab 4X4

Guys does this look right. I installed a Stant 180* thermostat. I backed of 20 * on the cooling fan parameters (3 total) which were originally at 222.97 on the 93 canned tune. I went down to 202.97* and by default it went to 201 ...

Mike! Tried the update that sent me but still shows has out of memory.87 and 93 Programs seem to load no problem.I know this because this 09 Hemi truck goes like it never has before.Regards, Ironbyron

Mine shows out of memeroy also
U7137x
2009 Dodge Hemi Ram
Calid 68059431AB
Vin have emailed mike