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Towing 3rd Gen Dodge Ram Towing Questions


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  #1  
Old 01-15-2014, 07:59 PM
peifferwa peifferwa is offline
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Default Normal vs Tow/Haul

I have a 2005 2500 diesel 4x4 and I am trying to find out what the shifting point or speeds should be for normal mode or in the tow/haul mode. What speed should the torque converter lock up at for the the normal mode vs tow/haul. Any info would be appreciated.
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Old 01-15-2014, 08:21 PM
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Arth Arth is offline
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I will just do my best to answer this from experience.

Tow/Haul mode is used to hold the gear longer while under load. Tow haul will also try to keep you in the trucks power band when under acceleration. This prevents the transmission from abruptly shifting as you apply more throttle to climb hills.

In normal mode the transmission will shift as soon as it can based on your throttle input. I call normal mode the fuel economy mode. As soon as it can the truck will shift and try to keep the RPM's low. This is what you don't want when towing.

Hopefully that makes sense!
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Old 01-15-2014, 08:35 PM
peifferwa peifferwa is offline
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The problem I have is the torque converter locks up at 30 mph and shifts to top gear at 42-45 mph when in Tow/haul. In normal mode torque converter locks in at the same time as top gear which is at a speed of 49 mph. Best fuel mileage is when I am in Tow/haul. It looks like it is backwards. This doesn't effect mileage on highway it does when your in city.
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Old 05-19-2014, 06:36 AM
Lake O Hunter Lake O Hunter is offline
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Quote:
Originally Posted by peifferwa View Post
The problem I have is the torque converter locks up at 30 mph and shifts to top gear at 42-45 mph when in Tow/haul. In normal mode torque converter locks in at the same time as top gear which is at a speed of 49 mph. Best fuel mileage is when I am in Tow/haul. It looks like it is backwards. This doesn't effect mileage on highway it does when your in city.

So you get better gas mileage driving in town with the tow/haul button on? I have often wondered about whether that would be an improvement or not.
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