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06-23-2014, 03:10 PM
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#1
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Montana Master
Join Date: Mar 2013
Location: Frostproof, FL USA
Posts: 2,362
M.O.C. #13272
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F350 Cruise Control
Doing some 7% grades getting close to Yellowstone I noticed something weird about my cruise control. This grade was 6 miles long and restricted to 25mph so I tried 2nd gear with cruise. Cruise wouldn't work. I just thought my cruise went out. Later we had stopped at a rest area and after taking off I tried the cruise again and it worked the rest of the day. Never tried it again in 2nd gear but was wondering if it just won't work unless you are in 3rd gear or higher.
__________________
Previous: 2008 Montana 3400RL & 2014 3725RL
Current: Full Time 2022 SOB TT Toy Hauler
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06-23-2014, 03:21 PM
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#2
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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Probably speed sensitive. I have a Chevy and the cruise doesn't engage below a certain speed which I believe to be 45 mph.
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06-23-2014, 03:24 PM
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#3
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,548
M.O.C. #2283
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I think the Fords won't work below 35.
Lynwood
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06-23-2014, 03:27 PM
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#4
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Montana Master
Join Date: Mar 2013
Location: Frostproof, FL USA
Posts: 2,362
M.O.C. #13272
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Quote:
quote:Originally posted by rmthelen
Probably speed sensitive. I have a Chevy and the cruise doesn't engage below a certain speed which I believe to be 45 mph.
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You are correct. I think the 2012 Fords are speed sensitive below 30mph. I probably misquoted myself in the original post. The posted restriction was 25mph but when I tried setting the cruise I was at about 34 or 35mph.
__________________
Previous: 2008 Montana 3400RL & 2014 3725RL
Current: Full Time 2022 SOB TT Toy Hauler
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06-24-2014, 03:38 AM
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#5
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Montana Master
Join Date: Oct 2009
Location: Navarre
Posts: 1,527
M.O.C. #9765
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It's probably not good to use CC at low speeds in the mountains. It is speed limited. Use tow haul and foot power to control accel/decel.
Mike
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06-24-2014, 05:43 AM
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#6
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Montana Master
Join Date: Mar 2013
Location: Frostproof, FL USA
Posts: 2,362
M.O.C. #13272
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If I am hooked up I am always in tow/haul mode. I have found that 6% grades and less (up or down) I do much better letting cruise take over as long as I am setting it around 50mph or below. It seems that anything steeper the cruise doesn't want to hold going downhill so I don't use it.
__________________
Previous: 2008 Montana 3400RL & 2014 3725RL
Current: Full Time 2022 SOB TT Toy Hauler
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06-24-2014, 11:36 AM
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#7
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Montana Master
Join Date: Mar 2005
Location: Port Orchard
Posts: 1,153
M.O.C. #3403
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From what I have read Ford systems are designed to operate at speed from 30-125 mph.
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06-24-2014, 12:18 PM
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#8
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Montana Master
Join Date: Mar 2012
Location: Redding
Posts: 1,421
M.O.C. #12339
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I don't operate mine while towing unless long straight highways. I like the feel of controlling throttle myself. Traffic etc can cause me to loose focus, and my Ford makes mountains etc easy to climb. Not sure I would ever use cruise control at lower speeds. Just my way I guess?
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06-24-2014, 05:19 PM
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#9
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Seasoned Camper
Join Date: Jan 2009
Location: Libby
Posts: 98
M.O.C. #9080
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When going down grades at slow speed, I put the trans in 'M' which is manual shifting and use the toggle on the gear shift lever to select the appropriate gear. If you have the FX package you also have hill descent control for traveling under 20 MPH.
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06-24-2014, 06:11 PM
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#10
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Montana Master
Join Date: Jan 2009
Location: Land O Lakes
Posts: 932
M.O.C. #9053
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M? Toggle switch on gear shift?? I must be out of touch with my 08!
__________________
Walt and Carol Ashley, with fond memories of Bailey the Chesapeake! Land O Lakes, FL
2009 Big Sky 365REQ 10th Anniversary Edition
2008 Ford F350 King Ranch Super Duty
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06-25-2014, 02:32 AM
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#11
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,548
M.O.C. #2283
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We didn't get M toggle on our 08s but 120 mph with speed control. I might haft to start using that.
Lynwood
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06-25-2014, 02:41 AM
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#12
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Montana Master
Join Date: Jan 2009
Location: Land O Lakes
Posts: 932
M.O.C. #9053
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Well, I got new tires recently, so I guess I could fudge up near 120...
__________________
Walt and Carol Ashley, with fond memories of Bailey the Chesapeake! Land O Lakes, FL
2009 Big Sky 365REQ 10th Anniversary Edition
2008 Ford F350 King Ranch Super Duty
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06-25-2014, 10:28 AM
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#13
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Established Member
Join Date: Feb 2014
Location: Spring
Posts: 43
M.O.C. #14034
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on my 08 F250 6.4, cruise control is not available when Tow/Haul is enabled.
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06-25-2014, 12:32 PM
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#14
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Montana Master
Join Date: Nov 2003
Location: Santa Fe Springs
Posts: 4,189
M.O.C. #639
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On my 350 Ford and my new Dodge, CC was not able to work in speeds of less than 35 mph, which.... I never used at that slow of a speed. I like to control the RPM's an Gears when I'm going up any 6 % or higher % grade. if left in CC going up High % grades the engine can run hotter along with the transmission heat going higher. I have found that a higher RPM put less load on the transmission keeping it cooler. you might loose your mileage a bit, but that's cheaper than a transmission or engine problems.
__________________
Pulling a 2004, 2980 RL an oldie but goodie.
Tow vehicle is a 2009 RED RAM 3500 DRW.
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06-25-2014, 01:16 PM
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#15
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,359
M.O.C. #4831
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Quote:
quote:Originally posted by MrRobinGrimes
on my 08 F250 6.4, cruise control is not available when Tow/Haul is enabled.
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My 2008 F250 6.4L is long gone but I remember using cruise control and tow haul frequently. I do a commute up and down I-5 and that is my normal mode.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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06-25-2014, 02:22 PM
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#16
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,548
M.O.C. #2283
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Bad news for all of you who wonted to pull your campers at 120. I think these Ford trucks defuel at about 103. Yes I know bumer. My truck is tuned so it doesn't defuel but 120 is too fast even for me.
Lynwood
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06-25-2014, 06:07 PM
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#17
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Montana Master
Join Date: Jan 2009
Location: Land O Lakes
Posts: 932
M.O.C. #9053
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Quote:
quote:Originally posted by MrRobinGrimes
on my 08 F250 6.4, cruise control is not available when Tow/Haul is enabled.
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Wow! I have the same year and same engine, and CC always works with tow/haul. I think you need to see the dealer...
__________________
Walt and Carol Ashley, with fond memories of Bailey the Chesapeake! Land O Lakes, FL
2009 Big Sky 365REQ 10th Anniversary Edition
2008 Ford F350 King Ranch Super Duty
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06-25-2014, 06:10 PM
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#18
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Montana Master
Join Date: Jan 2009
Location: Land O Lakes
Posts: 932
M.O.C. #9053
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Quote:
quote:Originally posted by mlh
Bad news for all of you who wonted to pull your campers at 120. I think these Ford trucks defuel at about 103. Yes I know bumer. My truck is tuned so it doesn't defuel but 120 is too fast even for me.
Lynwood
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Dang! I really wanted to see if I got better mileage at speedway speeds! 
__________________
Walt and Carol Ashley, with fond memories of Bailey the Chesapeake! Land O Lakes, FL
2009 Big Sky 365REQ 10th Anniversary Edition
2008 Ford F350 King Ranch Super Duty
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06-26-2014, 03:46 AM
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#19
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,548
M.O.C. #2283
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Walt I will be happy to loan you my truck to see what type of MPG you get at race way speeds if you will give us a nice report if you survive.
Lynwood
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06-26-2014, 07:23 PM
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#20
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Montana Master
Join Date: Jan 2009
Location: Land O Lakes
Posts: 932
M.O.C. #9053
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Quote:
quote:Originally posted by mlh
Walt I will be happy to loan you my truck to see what type of MPG you get at race way speeds if you will give us a nice report if you survive.
Lynwood
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Dang! I just signed a new life insurance policy, and it won't let me go over 100! Guess I'll never know. 
__________________
Walt and Carol Ashley, with fond memories of Bailey the Chesapeake! Land O Lakes, FL
2009 Big Sky 365REQ 10th Anniversary Edition
2008 Ford F350 King Ranch Super Duty
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Linear Mode
