Ecobooster experts, please advise!
03-09-2013, 09:40 PM
#21
Senior Member
I doubt your boat trailer has electric brakes they dont work well or last long under water. if it has brakes at all they would most likely be surge brakes. Since the truck only senses electric brakes it doesnt know or care if a trailer is conected. as for tow haul mode you realy dont need it to pull boat on flat ground, if you notice excesive down shifting go ahead and use it and just let it do its thing, if you need more control on down grades use the manual shift to drop a gear or two. the EB especialy with 3.73 gear will pull that boat most anywhere in 6th gear. when I tow I seldom down shift and rarely see 2,000 rpm the EB is perfectly happy to just chug along in high gear
03-09-2013, 09:40 PM
#22
Senior Member
Doesn't make sense, bass boats usually come with tandem trailers from the original manufacturer. Trucks are modified typically after the person buys them.
However, I was mulling this over and I think it might have to do with bass boats being launch from less then ideal ramps, or no ramp at all. Thus the tandoms might prevent the trailer from sinking in the muck. Just a theory, always had deep v or modified V boats that really need a proper ramp to launch from.
Ian
However, I was mulling this over and I think it might have to do with bass boats being launch from less then ideal ramps, or no ramp at all. Thus the tandoms might prevent the trailer from sinking in the muck. Just a theory, always had deep v or modified V boats that really need a proper ramp to launch from.
Ian
03-09-2013, 09:40 PM
#23
Senior Member
And yet having towed a lot of trailers in my time, it wouldn't surprise me in the least. Having said that, there definitely could be a software glitch. I know in more then on occasion my 2011 showed my trailer still connected long after I disconnected it. My current trailer has surge brakes, so I couldn't comment on that function of the new trucks yet. Just going with my experience, and bad grounds just seem a way of trailer life, particularly when a trailer uses a floating geound(everything grounds to the frame instead of hard wired directly to the harness).
Ian
03-09-2013, 10:41 PM
#24
My truck comes up with "trailer wiring faults" all the time. Month ago dealer said they would reflash it if the problem came back but I haven't been back yet.
I guess all I'm adding is that according to me dealer there's a reflash for trailer related problems.
I guess all I'm adding is that according to me dealer there's a reflash for trailer related problems.
03-10-2013, 03:40 AM
#25
Heat Miser
I've personally never seen a boat trailer with electric brakes. I assume it's because of the water+electricity= minor problems thing
I've owned 3, and seen I don't know how many, and they all have/had surge brakes.
I've owned 3, and seen I don't know how many, and they all have/had surge brakes.
03-10-2013, 06:33 AM
#26
Senior Member
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I've seen them on high end boat trailers. They aren't full electric brakes. They are electric over hydraulic brakes.
03-10-2013, 08:49 AM
#27
Senior Member
Thread Starter
When you get a 21ft bass boat w/250hp all bass boats are tandem axle. I like it becuase its easier to tow, is better balanced for weight support distributed over 2 axles not 1. Plus like others said if i have a tire go out i still can tow to get home. I assume my brakes are surge brakes or electric over hydraulic. So with that in mind, the brake controller is useless for my purposes?? This truck doesnt control the boat as good as my SD, it bounces the rear more, could be the shocks but it is just getting used to it i guess. I only have 2k miles on my truck so i thought i better use tow/haul mode to keep from making transmission drag. As far as shift points, even when i am just driving, if i merge on highway my trans doesnt want to switch to 6th even though the speed has leveled off at 60-65 it stays in 5th until i take my foot off throttle. That cant be the way of this truck, it should switch into 6th.
03-10-2013, 09:18 AM
#28
Shifting into 6th under tow haul is very delayed. In my experience it goes in at about 60 mph. Which normally means I stay in 5th since I'm towing on lower speed back roads.
The only time mine waits so long to go into 6 in normal driving is if I am accelerating more heavily. 6th is a low power cruising gear so if it thinks you are pushing it hard it stays in 5th to provide the needed power. I would bet if you granny accelerate you would hit 6th at 45mph.
I would think some differences relate to gearing as well. Yours should shift differently to stay in the powerband vs one with say a 3.31.
The only time mine waits so long to go into 6 in normal driving is if I am accelerating more heavily. 6th is a low power cruising gear so if it thinks you are pushing it hard it stays in 5th to provide the needed power. I would bet if you granny accelerate you would hit 6th at 45mph.
I would think some differences relate to gearing as well. Yours should shift differently to stay in the powerband vs one with say a 3.31.
03-10-2013, 09:29 AM
#29
Senior Member
There is no 6th in tow mode. Unless its a very light load.
Does your trailer have a four wire harness or 7 wire harness?
Show us a pic of your boat attached to the truck, from the side.
The trailer could be set up wrong with too much weight behind the axels. Like I said, very very few trailers are set up properly at the lot. I had one with no brake fluid in the surge reservoir, that'll wake you up as you pull off the lot! I had another with the boat set way to far back, so much so, that what should have been 500-700lbs at the tongue I could lift it by myself, and I'm a scrawny little dude.
Edit: another very common problem with tandom boat trailers, is axle alignment, it is very common to see the axles out of alignment and it's easy enough to cause it, simply by dropping the wheels off the end of a ramp and yanking it out with the truck would do this. Check for uneven wear on the tires or cupping. This can create considerable drag.
Ian
Does your trailer have a four wire harness or 7 wire harness?
Show us a pic of your boat attached to the truck, from the side.
The trailer could be set up wrong with too much weight behind the axels. Like I said, very very few trailers are set up properly at the lot. I had one with no brake fluid in the surge reservoir, that'll wake you up as you pull off the lot! I had another with the boat set way to far back, so much so, that what should have been 500-700lbs at the tongue I could lift it by myself, and I'm a scrawny little dude.
Edit: another very common problem with tandom boat trailers, is axle alignment, it is very common to see the axles out of alignment and it's easy enough to cause it, simply by dropping the wheels off the end of a ramp and yanking it out with the truck would do this. Check for uneven wear on the tires or cupping. This can create considerable drag.
Ian
Last edited by Thislilfishy; 03-10-2013 at 09:39 AM.
03-10-2013, 09:46 AM
#30
Senior Member
There is no 6th in tow mode.
Does your trailer have a four wire harness or 7 wire harness?
Show us a pic of your boat attached to the truck, from the side.
The trailer could be set up wrong with too much weight behind the axels. Like I said, very very few trailers are set up properly at the lot. I had one with no brake fluid in the surge reservoir, that'll wake you up as you pull off the lot! I had another with the boat set way to far back, so much so, that what should have been 500-700lbs at the tongue I could lift it by myself, and I'm a scrawny little dude.
Edit: another very common problem with tandom boat trailers, is axle alignment, it is very common to see the axles out of alignment and it's easy enough to cause it, simply by dropping the wheels off the end of a ramp and yanking it out with the truck would do this. Check for uneven wear on the tires or cupping. This can create considerable drag.
Ian
Does your trailer have a four wire harness or 7 wire harness?
Show us a pic of your boat attached to the truck, from the side.
The trailer could be set up wrong with too much weight behind the axels. Like I said, very very few trailers are set up properly at the lot. I had one with no brake fluid in the surge reservoir, that'll wake you up as you pull off the lot! I had another with the boat set way to far back, so much so, that what should have been 500-700lbs at the tongue I could lift it by myself, and I'm a scrawny little dude.
Edit: another very common problem with tandom boat trailers, is axle alignment, it is very common to see the axles out of alignment and it's easy enough to cause it, simply by dropping the wheels off the end of a ramp and yanking it out with the truck would do this. Check for uneven wear on the tires or cupping. This can create considerable drag.
Ian
TO: It sounds like the transmission is behaving exactly as designed. You've added 2 tons to the load and ran in tow/haul mode. Expect it to hold in a lower gear for much longer, perhaps not shifting up to the gear you want based on terrain, etc...
On edit: I took out my original comment that it in fact will go into 6th gear because you edited your original post
Last edited by OddBall; 03-10-2013 at 09:51 AM.