- #75 of 195
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Re: Chevy 2500HD Trailer Gain [2007hd]
by davethecarnut
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Oct 02, 2007 (9:14 pm)
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Replying to: 2007hd (Sep 23, 2007 4:54 am)
Umm...Did the tranny downshift? The Allison is electronic and will downshift under a load even if you don't have the Tow/Haul button on.
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- #76 of 195
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Re: Chevy 2500HD Trailer Gain [davethecarnut]
by 2007hd
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Oct 06, 2007 (8:44 am)
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Replying to: davethecarnut (Oct 02, 2007 9:14 pm)
The tow haul button was on and, yes, the tranny downshifted but would that make the RPM increase? It seems as though it should decrease while slowing. Thanks for the reply, was starting to wonder if anybody had seen the question.
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- #77 of 195
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Re: Chevy 2500HD Trailer Gain [2007hd]
by dirtrdr0711
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Oct 08, 2007 (5:52 pm)
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Replying to: 2007hd (Oct 06, 2007 8:44 am)
It is doing what it is supposed to do. The trans has a brake sysem that uses engine compression to help in the braking process. This is similar to the Allison transmission and a great change to the Chevy line up. I was pleasantly surprised to have this feature as standard. So to answer your question, Yes the RPM will go up when the trans downshifts in this mode.
This is intended as a trailer braking aide, not to be confused with a brake controler.
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- #78 of 195
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Problem with brake lights on Travel Traler
by luggage
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Nov 15, 2007 (11:02 pm)
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I have a 2000 Silverado 1500 with less than 50,000 miles on it that I pull my travel trailer (Jayco Feather). A friend advised me on our last camping trip that my brake lights on my Travel Trailer were not working. The brake lights on my truck work fine as do the turn signals. Turn signals work on Trailer as well. I had my camper dealer check for an electrical or fuse problem. They check the pigtail as well as all of the fuses under the dash as well as the ones under the hood on the Driver's side. I was told that they could not locate the problem at any of those places. I then took it to a friend's independent auto sales and service business and they kept it a day and told me that the problem was in the steering column with the emergency flashers. They said that there was a short in the emergency flashers and the system/unit would have to be replaced to the tune of 300.00 + dollars. I have had others suggest that this does not sound like it is the problem. I don not know what they are basing their opinion on and I am not a mechanic. Can anyone advise me as to the reasonableness of this recommended solution?
Thanks,
luggage
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- #79 of 195
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Re: Problem with brake lights on Travel Traler [luggage]
by swift1069
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Nov 16, 2007 (7:29 pm)
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Replying to: luggage (Nov 15, 2007 11:02 pm)
Sounds almost like the same problem I had on my 04 silverado... The independant dealer is close but the problem wasn't in the steering column it was in the flasher fuse. The chevrolet Dealer spent two days tracking down the problem and after endless tests they changed out the flasher unit and it works great.. After that they found out that a bad ground on the trailer was causing back feed and it melted the connections inside of the unit.. I would suggest trying that first before spending 300.00 on the shop..Go to your local part store and pick one up you can get them cheap and easy to install.... Good luck
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- #80 of 195
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Re: Problem with brake lights on Travel Traler [luggage]
by l8kready
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Nov 20, 2007 (3:14 pm)
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Replying to: luggage (Nov 15, 2007 11:02 pm)
I'm having the same issue on my 2000 Silverado Z71. And I do also have a problem with my hazard lights. Had no idea the two could be connected, but I've looked everywhere for a fuse specifically for trailer brake lights and I can not find one. All fuses appear to be fine. Guess I'll have to bite the bullet and get the hazards fixed, I was gonna let them go and not worry about them. The work if I push them to the right but they are almost impossible to engage. I never could simply depress the button without hitting it with my fist several times.
Please post if you discover another cause.
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- #81 of 195
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Re: Problem with brake lights on Travel Traler [l8kready]
by swift1069
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Nov 20, 2007 (4:53 pm)
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Replying to: l8kready (Nov 20, 2007 3:14 pm)
Well The part is called a Hazard Flasher.. And the location is probably going to be under your dash on the driver side..On my 04 it's located close to the steering colume.. but it could anywhere on the driverside under the dash.. if you turn your hazards on you may her it ticking from under the dash... There is usually two of them that may look like. one is for your blinkers and the other is your hazards... I't usually a square shape.. Part number should be 44120.. I would also suggest that you check your ground on your trailer once you fix it. Take it loose from your trailer and clean the area really good, make sure there is no rust or paint between the connection.... Hopefully this helps, I know it can be a real pain.. It took almost a month to figure it out..
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- #82 of 195
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Re: Problem with brake lights on Travel Traler [swift1069]
by l8kready
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Nov 20, 2007 (9:22 pm)
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Replying to: swift1069 (Nov 20, 2007 4:53 pm)
Well, in my case it absolutely turns out to be a defective flasher switch. My hazard switch has always been difficult to turn on and I noticed it stopped working the other day unless I held it just right. Tonight I plugged my trailer light tester into the plug on my Z71 and all lights tested OK with the exception again of the trailer brake lights. I had my brother watch the lights on the tester while I wiggled the hazard switch and if I pulled it hard toward the door while pressing the brakes the tester brake lights came on. Gotta be the switch then... no fuse, no flasher problem. I did a little more research and found that this problem has also been reported and a recall issued for the 2000 Malibu and the 2000 Blazer.
I think I'll try taking the articles to my dealer and see what they say. It's worth a shot.
http://www-odi.nhtsa.dot.gov/cars/problems/defect/results.cfm?action_number=EA02- - 037&SearchType=QuickSearch&summary=true
http://www-odi.nhtsa.dot.gov/cars/problems/recalls/results.cfm?SearchType=QuickS- - earch&rcl_ID=01V364000&summary=true
http://www-odi.nhtsa.dot.gov/cars/problems/recalls/results.cfm?SearchType=QuickS- - earch&rcl_ID=01V364000&summary=true
Hope this helps somebody out. Thanks everyone for taking me in this direction.
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- #83 of 195
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where to hook electric brake controller on a 2003 silverado 1500
by michael9782
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Nov 30, 2007 (8:07 am)
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i cant find the wires under the dash panel can anyone tell me how to connect the wires and where can i find it thanks
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- #84 of 195
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Rear end / differential
by maxum
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Dec 08, 2007 (2:05 pm)
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I have a 2003 Chevy Silverado 1500 Classic. In January I will be leaving for Tennessee in the mountains...My rear end is basic and one wheel is always spinning in the rain.. What can I do to get better performance in the snow/rain/sleet.
Other than using chains only when necessary. Should I look at changing the rear end/differential to a positive traction?
My truck is in new condition and only has 10,000 miles on it.
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