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Open Roads Forum  >  Dinghy Towing

 > RV Transmission Setting

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rmatteucci

US

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Posted: 05/26/12 07:42pm Link  |  Print  |  Notify Moderator

I have purchased a Roadmaster Falcon AT tow bar for my 2011 Itasca Cambria 30C which I will be towing a 2012 Ford Escape. My question is do I have to run the transmission in the tow mode all the time or only when I am in hilly areas. What does the tow selector do to the transmission. I was reading somewhere that it helps in slowing down the RV to help with breaking. Does it hurt the gas mileage or is there any speed restrictions in the tow mode. The Cambria is on a Ford E450 Chassis with a TorqShift 5 speed automatic transmission with a 6.8L V-10 Engine. Any other towing tips would be appreciated.


2015 Itasca Sunova 33c
Towing 2008 Jeep Wrangler Sahara 2D


have bible will travel

St. Joseph, MO. USA

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Posted: 05/26/12 07:58pm Link  |  Print  |  Notify Moderator

We have a 28b Cambria which has a tow haul feature on the end of the shift lever. We use this gear anytime we tow. This transmission works well on hills going up and down. Shifts down helps the braking. Have fun with your Cambria.


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rvten

Crossville,TN

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Posted: 05/26/12 08:44pm Link  |  Print  |  Notify Moderator

I only use the TH when going down hills and exiting the interstate for extra braking.
With TH on.The trans. Will hold a lower gear longer (extend the shift point).


Tom & Bonnie
Crossville, TN.
Aspect 29H 2008 Type C
Ford Flex SEL 2010
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luvlabs

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Posted: 05/27/12 07:26am Link  |  Print  |  Notify Moderator

I would only use Tow/Haul in descending (or climbing) significant grades. It's not needed for routine driving with your toad.


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rjstractor

Auburn, WA

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Posted: 05/26/12 08:36pm Link  |  Print  |  Notify Moderator

This transmission mode is actually "tow/haul" mode and can be used for any time you are moving a heavy load. A motorhome is always moving a heavy load even when it's empty, so you can use the mode any time conditions dictate, whether towing or not. The amount of weight added to your total weight moved when you tow is relatively little, so you should not notice a huge difference in performance anyway when towing.


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OH48Lt

Whitehouse, OH

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Posted: 05/26/12 08:13pm Link  |  Print  |  Notify Moderator

The tow/haul feature changes the transmission shift points. It will assist with braking by being more aggressive on downshifting when decreasing speed, and will assist when accelerating by holding the upshifts to a higher RPM. It will not damage your trans to have it in tow/haul at any time. Its a useful feature when you are towing another vehicle or trailer. It shouldn't effect your fuel mileage -may even improve it- but any change either way will be small.


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Jack&Kay

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Posted: 06/03/12 02:23pm Link  |  Print  |  Notify Moderator

Thanks for the useful information on the Tow/Haul switch. I have not really used it on this rig, but since I intend to tow our Honda, I might have to get used to it. The thing I have noticced in the past is that the tranny will downshift when to have your foot on the brake. Is that the way it's supposed to work? It seemed like the RPMs really jumped up higher than I expected.


Jack & Kay
2007 Tiffin Allegro 28DA
Ford Chassis V-10
Blue Ox Tow Bar to a 94 Honda Accord
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kyhawk

Villa Hills Ky

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Posted: 06/04/12 09:27am Link  |  Print  |  Notify Moderator

Our tranny does that too. I think it just helps the brakes slow the rig by using the engine. Nothing like a tranny that thinks for itself.


Janet & Ralph
2008 Winnebago Aspect 26A
2008 Ford Escape Hybrid

DouglasC

Summerdale, AL

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Posted: 05/27/12 02:55pm Link  |  Print  |  Notify Moderator

rvten wrote:

I only use the TH when going down hills and exiting the interstate for extra braking.
With TH on.The trans. Will hold a lower gear longer (extend the shift point).


I do the same thing, using TH mostly for making the transmission downshift to a lower gear when decelerating so to aid in braking. Leaving it in TH while accelerating seems to cause the RPMs to go too high before the tranny upshifts IMO. I have 40,000 miles on my E450 with the V-10 so far and have had no problems using this method.


Doug
2006 Jayco Greyhawk Model 27DS
Towing 2012 Ford Fusion Hybrid with Brake Buddy


rmatteucci

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Posted: 06/01/12 10:54am Link  |  Print  |  Notify Moderator

Thanks for the replies. I guess I will have to try it out on all the time while towing and see what it does and then decide on whether to use it intermittently while going up or down hill. Good point about be able to use it with or without towing I have gone up and down hills in NY and thought a lower gear on the transmission would have been in order the changed shift pattern for towing might be what I could have used. Thanks.

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