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Chevy Silverado and GMC Sierra Trailer and Towing Questions

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  • Is this why my interior lights do not work on my brand new trailer? My father has the extra battery on his 2500 and the lights work fine but they do not work when it is hooked up to my truck. I do not have a battery in my trailer. I need 12v to that pin to make the lights work I believe.

    Fred
  • newfoundnewfound Posts: 2
    I had a very similar problem with my 2003 HD2500 and searching here I had found that someone had the same issue with the source being the hazard flasher. I checked out mine and found that I could remove and replace it and get the lights working, move the vehicle and lights would stop working...basically it was intermittent. I purchased a new one (about $100 canadian), against the recommendations of the dealer, and fitted it - problem resolved. The feed for the trailer harnass does pass through this relay. The GM part # was 10383321 and this flasher relay is located on the backside of the fuse panel. I had to remove the panel from around the cluster and then take off the lower panel beneath the steering column to get at it. From there it just plugs in. Hope this helps.

    Lawson
  • llfarquellfarque Posts: 1
    Which plug under the dash would I plug my electric brake controller into? There are 3 available slots. It is on a 2008 GMC Sierra.
  • Did anyone ever answer your question? First of all, I bet you have cooler, even though you don't have the tow pack. Have you checked closely to see if there is a smaller radiator in front of the large one?

    At any rate, the towability will depend upon the terrain. Your 1500 has plenty of chassis, but the motor is a bit light if you are going to do hills/mountains. The 3.37 is fine. I would go ahead and use it, don't abuse it, and watch the temp gauge. Don't operate at high rpm for long periods, uphill.

    I have an '04 1500 4x4 w/3.73, 5.3, and tow package. It pulls my 6500# 5th wheel great, even up most hills. Trans never heats up, and neither does engine.
  • The "space" is not too short for a 5th wheel. It simply depends on the "hitch box" your 5th wheel has, and the actual hitch you use. Some 5th wheels have "extended pin boxes", which put the box a little in front of the unit. That gives you more room for turns.

    I have an /04 with the 6.5' "short" bed (not as short as the 5.5'). I have a standard 5th wheel hitch, and my unit has the EPB. I can make lock to lock turns in the tightest circle with no cab contact.

    GM has the blank in those spots because they do not want to be liable for some idiot crushing his cab.

    Jim
  • patrick37patrick37 Posts: 1
    I have a 2005 GMC Sierra K-1500 with the towing package. The factory hitch indicates a capacity of 5,000 lbs with 600 lb tongue load.

    I have to pull my '68 Camaro on a U-haul auto transport that is listed at a weight of 2,000 pounds and the Camaro is somewhere between 3,000 and 3,500 pounds (title says 3,100 but who knows if that is exactly right).

    Does anyone know if I should worry about being just a few pouds over the 5,000 since the truck is rated for more?
  • I'd re-check the weight of that U-Haul trailer. I'm nor 100% sure, but those things can't weigh more than a 1000lbs.
  • dozziedozzie Posts: 1
    I know this has been talked about a lot here but I did not see the answer to my problem. I have a 2003 Silverado 1500HD w/Towing Package and Quadrasteer. When I purchased my truck used it had a Takonsha brake controller. I am replacing it with a Reese Brakeman Digital. I also bought a new pigtail for my truck and hooked it up black to black, red to red, blue to blue, and white to white. The controller works when I push the manual button but not when I push my truck brake. I must have wired this wrong but cannot figure it out. Any help would be appreciated.
  • I had the same problem when I hooked up any trailer to my truck, the left set of lights on the trailer would not work. I took it into the dealer and they found that one of the wires for the trailer harness was pinched between the bed and the frame of the truck during assembly at the factory. It must be a common thing because while I was waiting in the waiting room at the dealership, another person had the same problem but with the right side set of light on the trailer. They found the same problem with his truck also.
  • wcviperwcviper Posts: 2
    I have a 2006 2500HD Diesel. I see that my hitch dealer installed my trailer brake using a pigtail in a distribution housing under the driver's side dash.

    I have a ham radio I want to install and need power from the battery. Instead of going through the firewall and connecting directly to the battery, I was hoping I could get a pigtail connector, place the power cables from my radio into it, and plug it into the same distribution box.

    Does anyone know if this is possible and where I might get information on what each of the connectors are for and what they provide in this distribution box? Do dealers sell the pigtails that connect to this?

    Thanks!
  • Has anyone tried a programer for a 2004 1500 chevy? I am currently towing a 20' V-nose enclosed trailer with my truck and it's a load. I have taller tiers so I believe my 373 are at about 361 compared to the stock tires. How about after market exhuast and a K&N filter also? Are these kind of things worth it or will I be wasting my money? I have a hard time keeping the truck in overdrive even on the flats with little wind.
  • obyoneobyone Posts: 8,065
    Forget the programmer you can use tow/haul mode. Forget the exhaust and filter as you will lose power on the lowend which you don't want. Swapping gears from 373 to 411 will definitely help power wise but not mileage which is probably suffering anyway.

    The power band of the 5.3 is up in the 3-4K range which doesn't help when towing in OD but I think you know that already.

    Consider the 411 probably your best bet and it doesn't make that much of a difference in gas.
  • iggy51iggy51 Posts: 1
    I have a 2005 Chevy Silverado 1500 Z71. I just bought a 23 foot travel trailer that wieghs about 5000 lbs. What can I expect and how should I handle steep mtn. roads?Thanks
  • I HAVE A 2007 SILVERADO NEW STILE!! I HAVE A CONCERN!! WHEN IM PULLING A TRAILER THAT WEIGHT APROX 1500 LBS!! WHEN I GET THE SPEED APROX 75 MPH THE TRANS DONT SHIFT FROM THIRD TO FOURTH GEAR!! IS AN EMPTY TRAILER!!! IF I PRESSED THE TOW MODE IT WILL DO THE SAME THING!!! I TOOK IT BACK TO THE DEALER AND THEY SAID THAT IS SOMETHING NORMAL!! I DOES THAT TO PROTECT THE TRANSMISSION!!! IF I GO FOR A TRIP THAT WILL LAST 400 MILES IN WILL SHIFT TO FOURTH GEAR BUT IT WILL DROP THE SPEED BY IT SELF!! IF I PUT THE CRUISE CONTROL I DOES THE SAME THING!! CAN SOME BODY HELP ME WHAT CAN I DO ABOUT THESE ISSUE!! THANK U
  • I just wired my brake controller on my 07 Silverado NBS. I know it is wired correctly because everything functions as it should. Only problem is after i finished, i manually applied the brake on the controller, and it sounded like my fuel pump began to run, and my compass on my mirror came on. I started the truck, applied the manual lever, and didnt see anything abnormal, shut the truck off, did it again, and nothing hapened the second time. Has anyone heard of this. I have the wires hooked up correctly under the hood, and could use some help. Thanks!
  • I am looking to new or used 2500 hd. I know that the duramax is a pulling machine, I had one of the first ones and the latest was a 2005, but I don't work for that company anymore, So my question is with diesel as much as 50 to 70 cents higher depending on the time of year. What kind of fuel mileage does the 6L with 6 speed auto get pulling say 12000 lbs which it says it can do. I know the duramax will out pull it with ease, but to suffer the performance is it worth the cost of fuel and the $7000 difference in price. Any comments
  • I have a 2006 duramax and about a week ago I pulled my fifth wheel trailer for the first time this summer, and I think I blew a fuse or a relay because before I pulled it the trailer brakes worked fine but after they will only work when I squeeze the controller but not when I apply with the pedal. Where would I find the fuse that controls this? I have looked at the fuse blocks but can't seem to locate it.
  • My 8.1 gets about the same mileage as a friends 6.0. And when towing, that 6.0 works alot harder than mine. If you're doing a lot of towing, go for the Duramax.
  • I believe GM feels that 3 low batteries charging at once could overheat the alternator. 2 in truck, 1 or more in trailer. 2005 owners manual says not to put in 40 amp fuse if you have diesel (2 batt) or an aux batt in truck (2 batt).
    If you have 3 low batteries, lights on, a/c on hi, etc that's too much load. Leave lights off, fan off, charge truck batteries 10 min. then plug in trailer after dry camping.
    If your truck batteries are at full charge then no problem.. we put the 40 amp in an 05 today.
  • Why when I put the tow and haul on when I pull something it is winding out. I brought it in and they said they could not find nothen rong. A nother problum is my rear tires are locking up but not all the time. If I take off and at the same time I hit a bump are if the tire spins a little bit it starts to lock up. A nother problum that GMC said there was nothen rong. Its a 2006 GMC crew cab
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