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-   -   Tranny issue on 2009 ram 1500 4.7!!! (

kitman 02-20-2011 07:07 PM

Tranny issue on 2009 ram 1500 4.7!!!
today i was pulling my boat. i had the tow/haul on. i dont know what gear it was in but i was running about 2000 rpms and all the sudden(on slight uphill) the tranny upshifted and i was at 3500 rpms. i slowed down then gave it a little gas and the rpms jumped up again, almost like the tranny was stuck. i took it off tow/haul and everything was fine after that.

the truck has 28k miles on it. i dont even know if i need the tow/haul, the truck seems to run 2000 t0 2500 all the time when it is engaged.

anyway i got a little nervous today as i just purchased the truck last week!!

anyone know what could have caused this? the tranny temp never got above 134

thanks for looking

SslagleZ28 02-20-2011 07:17 PM

I dont hear anything wrong with what you just described. It just sounds like your truck says I need more power and downshifted.

brad12kx 02-20-2011 07:25 PM

I have to agree. I don't think there is anything wrong. I t may be more a case of you getting familiar with how your truck responds under various conditions.

The 4.7 is a small engine, and if the load is enough to make it lug a little, the computer will quickly respond by telling the trans to down shift.

If you are concerned, I will recommend taking to the dealer....with the boat in tow....and have a technician take it for a drive to evaluate what it's doing under the conditions that concern you.

Either way, keep us posted as how you make out. :smileup:

jcasey10 02-21-2011 05:37 AM

Sounds like it just needed to downshift to keep the power. Tow/haul mode basically just gets rid of 5th gear so you have plenty of power in 4th gear. Sounds like the incline was steep enough it downshifted.

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