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Old Nov 13, 2016 | 06:12 PM
  #31  
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That makes sense. It still doesn't heat up in "rapid" fashion, I wonder if it even works! Lol
 
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Old Nov 13, 2016 | 08:29 PM
  #32  
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Originally Posted by Jace2016
That makes sense. It still doesn't heat up in "rapid" fashion, I wonder if it even works! Lol
I ordered it for mine. Hope it heats the cab in freezing weather in less than 15 miles. My 2011 F250 SD Diesel that I'm trading for a 2017 takes that long and doesn't have seat heaters. Going on week 6 since order. Think I'll have it in 4 more weeks?
 
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Old Nov 14, 2016 | 06:55 AM
  #33  
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Originally Posted by Jace2016
That makes sense. It still doesn't heat up in "rapid" fashion, I wonder if it even works! Lol
It definitely works, and works better than the previous generation. The heater consists of three heating elements running at 50A apiece, which is more amperage than the previous generation. At full 150A draw, the standard 200A alternator would not have a lot of reserve to run the actual heater blower, rear window defrost, heated seats, mirrors, steering wheel, lights, etc.

The heater does not provide "hot" heat, but rather lukewarm heat. It does provide this lukewarm heat almost instantly. You can tell the heater is working because the engine coolant temp has not even registered on the digital gauge but you have lukewarm heat. It helps remove the cold in the cabin and works to start defrosting.

No other competitor offers a supplemental heater.
 
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Old Nov 14, 2016 | 09:09 AM
  #34  
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Thanks troverman! I'll try it out this morning and pay more attention to it. It's only 48 degrees here this morning.
 
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Old Nov 14, 2016 | 11:18 AM
  #35  
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Originally Posted by Jace2016
Thanks troverman! I'll try it out this morning and pay more attention to it. It's only 48 degrees here this morning.
It was 21 degrees here this morning and I was thinking out loud that the 2017 better get her soon. The diesel is so slow to warm up anything has to help. I am getting soft in my old age. I used to drive around with the windows open through the winters here in PA.
 
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Old Nov 14, 2016 | 11:44 AM
  #36  
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Originally Posted by kab449
It was 21 degrees here this morning and I was thinking out loud that the 2017 better get her soon. The diesel is so slow to warm up anything has to help. I am getting soft in my old age. I used to drive around with the windows open through the winters here in PA.
How long since you changed the T-stat. Last time I changed to a 203 degree and it made warmup miles shorter and the heat was enough to cook a hotdog. Couldn't stand temp turned all the way up.
 
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Old Nov 14, 2016 | 12:19 PM
  #37  
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Originally Posted by troverman
It definitely works, and works better than the previous generation. The heater consists of three heating elements running at 50A apiece, ...
They are fused at 50 amps. They are likely 40 (or so) amp elements. They wouldn't make the fuse equal to the normal load. 80% is common.
 
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Old Nov 14, 2016 | 12:27 PM
  #38  
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Originally Posted by 2009kr
They are fused at 50 amps. They are likely 40 (or so) amp elements. They wouldn't make the fuse equal to the normal load. 80% is common.
True. I realized this after the fact and did not edit. Thanks for correcting.
 
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Old Nov 14, 2016 | 01:21 PM
  #39  
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Originally Posted by Rasalas
How long since you changed the T-stat. Last time I changed to a 203 degree and it made warmup miles shorter and the heat was enough to cook a hotdog. Couldn't stand temp turned all the way up.
T-Stat was never changed. Truck only has 80,000 miles. It just broke in but couldn't resist the new models. It was slow warming up from new. Not any difference now. It does get hot but slowly when cold.
 
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Old Nov 14, 2016 | 01:32 PM
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Originally Posted by kab449
T-Stat was never changed. Truck only has 80,000 miles. It just broke in but couldn't resist the new models. It was slow warming up from new. Not any difference now. It does get hot but slowly when cold.
That is about when I changed to the 203 deg. No sense in changing now but others might benefit. I guess a little research into the 6.7 to be sure it is in operating range but the 7.3 loved the hotter range. There should be a thread about it on FTE, that's where I found the 203 deg recommendation.
 
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Old Nov 15, 2016 | 10:10 PM
  #41  
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UPDATE: Rapid Heat Supplemental heater def works. Was 42 degrees here this morning and I had heat, somewhat like what troverman explained as luke warm, in about 3 min. I know water temp was still way cold so the rapid heater must be working. Great feature to have esp on the diesel which seems to take forever to heat up.
 
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Old Nov 15, 2016 | 10:36 PM
  #42  
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First time using the 4-wheel drive today. I was in a field with a customer in the rolling hills east of Bakersfield, soft ground that sheep had been in for several days with a steep climb up and over a hill. Looking back should've switched into 4x4 BEFORE I started up the hill but didn't, started to spin just a little and I switched to 4-high. Got a little bit of a loud clank but shouldn't have switched while climbing the hill without letting out of the throttle. Once at the top switched back to 2-wheel drive and got the same clank. Hoping everything is just still tight. Wasn't loud enough to make me concerned really but worth noting just in case of future issues. Will find out soon enough I'm sure. Curious if anyone else is hearing this or is it a smooth transition into 4-wheel drive & back to 2-wheel drive?
 
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Old Nov 16, 2016 | 12:22 AM
  #43  
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Originally Posted by Jace2016
First time using the 4-wheel drive today. I was in a field with a customer in the rolling hills east of Bakersfield, soft ground that sheep had been in for several days with a steep climb up and over a hill. Looking back should've switched into 4x4 BEFORE I started up the hill but didn't, started to spin just a little and I switched to 4-high. Got a little bit of a loud clank but shouldn't have switched while climbing the hill without letting out of the throttle. Once at the top switched back to 2-wheel drive and got the same clank. Hoping everything is just still tight. Wasn't loud enough to make me concerned really but worth noting just in case of future issues. Will find out soon enough I'm sure. Curious if anyone else is hearing this or is it a smooth transition into 4-wheel drive & back to 2-wheel drive?
Never Never Never shift into 4 WD under power. That's a fast way to destroying a hub. Always let up on the fuel and give them time to suck into gear. It's ok out on the highway to shift as long as the wheels aren't slipping but it is still wise to ease off the fuel for a couple of seconds.

The clank when disengaging might have been from pressure on the hubs due to axle wind up resulting from a turn. Try it a few times with little or no pressure and make sure there is no damage from the power shift. Hope you are enjoying the truck. It looks awesome!!
 
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Old Nov 16, 2016 | 12:44 AM
  #44  
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Unfortunately I know better & still did it. Was in conversation with a customer not paying attention and switched it over. Letting off the throttle at all would've ended any movement forward but that's what I should've done, just backed back down locked it in and gave it another go. My bad there for sure. I'm an avid off road rock crawling guy too, I know better, that's what makes it even worse.

Thanks on the truck. I'm enjoying it all day every day so far! 2200 miles in 6 days. Hopefully yours will be here soon. I know the wait is tough, esp long as you have been waiting, but it's worth it. What a great truck!
 
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Old Nov 16, 2016 | 05:42 AM
  #45  
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Jace, I doubt any damage was done - Ford does call this a "shift on the fly" system and doesn't explicitly say not to shift when under power. However, Rob is correct - it is much easier on the drive train to simply let off the power while it shifts.

For reference, I've used my 4x4 system on my 2017 several times now and it has been utterly silent each time. I have not shifted under power, just while either stopped or coasting. I'm impressed; the previous generation trucks (of which I had several) always made a slight clunk while engaging.

For your piece of mind, when you come to a straight piece of pavement, shift in and out and see if it is quiet or nearly quiet. If so, you're all set.

PS - I *hate* how the screen no longer reads 4x4 High or 4x4 Low but rather "4H" or "4L".
 
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