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1492 messages,  Last post on Oct 12, 2006 at 5:32 AM

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What is this discussion about? GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck

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#1189 of 1492 Re: No Start, Fuel and spark [campitelli] by weels Oct 12, 2005 (7:53 pm)
Replying to: campitelli (Oct 11, 2005 5:50 pm) Do you know for sure that the injectors are indeed squirting? I haven't dealt with this on a vortec yet, but my older throttle body truck did that and it ended up being a fuse or relay for the injectors. I had fuel pressure and all, but they wouldn't squirt. No trouble codes eh? - Tim
#1190 of 1492 No Power or Electrical at Cold Start-Up by foch Oct 13, 2005 (11:10 am)
2000 GMC 2500 6.0L - On occasion when cold starting I insert the key into the ignition and attempt to start the truck and there is no power or voltage to any device in the truck - totally black. After removing the key and re-inserting it and trying again, some dash lights flicker and after another attempt or so finally the head lights and all other devices appear to work and the truck starts. Usually associated with this is tough starting and the need to keep my foot on the accelerator to keep the truck running. After idling for a while I can shut the truck off and let sit for a minute and re-start the truck with no problem. I also have the typical GMC fuel gauge problem but a new battery seem to have helped with this. Any help would be most appreciated. Replies to this message: weels (Oct 14, 2005 8:44 pm) foch (Oct 21, 2005 9:29 am)
#1191 of 1492 Re: No Power or Electrical at Cold Start-Up [foch] by weels Oct 14, 2005 (8:44 pm)
Replying to: foch (Oct 13, 2005 11:10 am) All my gm trucks have done that through the years when we have a Brutal cold morning like 30 below or so. My '04 hasn't had a morning like that yet here in upper NY. Where are you from? I used to put a coolant heater in the lower hose and plug 'em in for the night if we expected a night like that. I seem to remember the brand name of "katz"? Also I would turn the headlights on for a few seconds, put the key to on and wait a little before cranking it. They used to have the electric dipstick heater which I would avoid. I have a heavy duty magnet with a heater that you stick on the block if there's room for it. The '05 oil pan is aluminum so you can't use it there. Of course there's always the factory block heater if your truck was so equipped. Its a drag that winter's almost here again.  - Tim Replies to this message: foch (Oct 21, 2005 9:29 am)
#1192 of 1492 Weird Electrical Problem by slindem Oct 16, 2005 (4:26 pm)
This one has got me puzzled. My 1995 GMC Sierra SL truck will die when I open the hood. It will also not start with the hood up. A few details that go along with this problem include; lights dim during braking and when turn signals are activated, during braking charging system very close to the negative red zone. I have replaced the battery and alternator, to no avail (I hate throwing parts at a problem). Initially believed I had a bad hood light, so I disconnected it and then the truck would not start till I hooked it up again. So I guess my question is, do I have a bad ground thats causing all these problems? And if so, how in the world do I find it? thanks Replies to this message: weels (Oct 16, 2005 7:12 pm)
#1193 of 1492 Re: Weird Electrical Problem [slindem] by weels Oct 16, 2005 (7:12 pm)
Replying to: slindem (Oct 16, 2005 4:26 pm) Definately a short or short to ground. Persaverance is all I can say, start tracing all the circuits effected one by one from load to source till you find it. An ohm meter will help out a lot. Good luck. - TC
#1194 of 1492 Re: Clunking noise near Drivers seat when shutting down [weels] by weels Oct 17, 2005 (6:51 pm)
Replying to: weels (Sep 08, 2005 6:31 pm) I took the truck to the dealer today and had Mr. Goodwrench take it for a spin with me. They ended up replacing the intermediate steering shaft ( right out of the boot at the firewall) I took it out in the field (thats where I always hear the noise) and so far - so good. They covered it under warranty.  - TC
#1195 of 1492 Can I wire in snow plow lights to my 2005 GMC. by sortboy Oct 16, 2005 (5:41 pm)
I have a 2005 GMC 2500HD. I am installing a snow plow and am told that I can not hook the snow plow lights up by tapping into the the wiring. I am told that I have to buy a module to control the plow lights. The computer and day time running lights will screw up if I tap in. One plow dealer said that GMC had used a positive grounding system but had problems with it and switched back to neg. ground.????? I never herd of that. Does anyone have info on this? Replies to this message: geo9 (Oct 17, 2005 6:07 am) sortboy (Oct 17, 2005 4:42 pm) geo9 (Oct 19, 2005 6:05 am)
#1196 of 1492 Re: Can I wire in snow plow lights to my 2005 GMC. [sortboy] by geo9 Oct 17, 2005 (6:07 am)
Replying to: sortboy (Oct 16, 2005 5:41 pm) What kind of plow?   Does your truck have the VYU plow prep. option? If so GM has quick connect and ready to tap install connectors in all of its full size pickups............   Go to http://www.gmupfitter.com publications-pg.27 for full wiring schematics, pics. etc...................   NOTE: GM uses pos. ground on the power door locks ONLY ! The module is used for remote starter applications because of this...........   Unless its a Western/Fisher plow........They use a module in the truckside wiring circuit that controls the lights. It is also neg. ground.  They used to use a 6 fuse set up.   A aftermarket plow light brand should wire right in tho.................   Shoot me your e-mail.....I can direct you to someone who can help. Replies to this message: sortboy (Oct 17, 2005 4:42 pm) geo9 (Oct 19, 2005 6:05 am)
#1197 of 1492 Re: Can I wire in snow plow lights to my 2005 GMC. [geo9] by sortboy Oct 17, 2005 (4:42 pm)
Replying to: geo9 (Oct 17, 2005 6:07 am) The plow is a diamond plow, made by meyers. It's an older model. The plow lights are the same as the Boss plow lights. No I do not have the VYU option.   I had a 94 GMC and I wired after market plow lights to it. I had a toggle switch to switch from plow lights to truck lights. After I got my new truck I was talking with a plow dealer and he told me that if I don't have a plow light wiring module and if I tap into the lights that it will screw up the computer, day time running lights and the truck will not run correctly. Oh yes he has one and will sell it to me for a meer $350.00. I have a wiring diagram and I do not have a problem with tapping into the light wiring as long as I know that it will not mess up the truck. Replies to this message: geo9 (Oct 19, 2005 6:05 am)
#1198 of 1492 Re: Plastic Trim Maintenance [gmctruck] by edsview Oct 19, 2005 (5:06 am)
Replying to: gmctruck (Oct 12, 2005 4:41 pm) Hello again everyone. Just an update for all interested. The plastic trim, i.e.; door handles, tailgate handle and bezel, tailgate cap, mirrors, etc. on my 04 Sierra was looking very weathered although I cleaned and applied a plastic/vinyl protectant frequently. I have been experimenting with an old broken (the clips) tailgate handle bezel that I painted with Krylon 'Fusion' plastic paint. This piece has been on my truck for about a month, the shine remains and the surface does not get that weathered look that all the other plastic trim pieces on the truck develop after a few mornings of dew and/or rain nor do I have the problem of streaks on the paint from the protectant running washing down the sides of the truck. Additionally, you can get wax on the trim now and it comes right off without leaving that white shadow in the plastic that seems to never come off. I plan on painting all the trim on the truck with this paint in the near future, even the new tailgate bezel that will replace the broken one. P.S. Krylon 'Fusion' is available in multiple colors, I used black!

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