Vortec-Z71
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About Vortec-Z71
- Birthday 12/17/1991
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Massachusetts
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Hi, does anybody have an OEM GM Accessory Silverado or Sierra soft tonneau cover laying around for the 5.5’ short box? I don’t care about the shape of the tonneau itself. I am in need of some of the hardware which is now discontinued (as is the full package from GM) but will buy the entire thing from you. The original part numbers were 12498862 for Chevy and 12499097 for GMC. Please let me know. Thanks.
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Hi everyone, I have this strange noise on startup on my 03 Silverado 1500 that has been going on for a few months and can't figure out. It seems to do it for the first 30-60 seconds mostly when the truck is cold. In park or moving doesn't seem to make a difference. The noise sounds like it is coming from the area underneath the driver seat near the frame rail. I suppose the sound could be traveling along from something near the frame rail slightly further up. I originally thought it was the ABS motor but it has done it both before and after that was replaced. Below is a video I took. It's not the best quality but you can hear the sound I'm talking about in it. Please let me know if you have any idea what it could be. Chris
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03 Silverado Replacement Bed Floor Cross Rails
Vortec-Z71 replied to Vortec-Z71's topic in 1999-2013 Silverado & Sierra 1500
Thanks for the quick reply. Is there any chance you could add a link? I’m still having trouble finding the dorman part. I only see them for Ford. Chris -
Hi, the cross rails that go under the bed on my 03 Silverado are beginning to rot out. I can't seem to find replacements anywhere. They used to be available from GM as part of the bed floor but all the bed floors short/standard/long appear to be discontinued so that is not an option. I would have thought there would be an aftermarket option but I haven't been able to find any. Has anyone gone through this before? Chris
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This link still works: https://media.gmc.com/dld/content/dam/Media/images/US/Vehicles/GMC/SierraHD-Denali/2020/Product/2020-GMC-Sierra-3500HD-Denali-001.jpg
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I forget the exact extension size other than the 24" one I had to go out and buy (everything was regular not wobble). I can't recall the exact nut size either but I want to say 13mm. What I did was go to my local dealer and buy a brand new nut by looking it up in the parts catalog and found the size that way so I didn't have to play around with it. Plus I wouldn't be dealing with a rusty nut when installing the new lines and you can put anti-seize on it easily. The Dorman install guide below is a decent summary but lacks a lot of detail. It makes it look much easier than it really is. https://www.dormanproducts.com/p-90300-919-840.aspx?year=2003&make=Chevrolet&model=Silverado%201500&parttype=Fuel%20Line&origin=YMM
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I replaced the fuel lines with the same Dorman kit on my 03 a few weeks ago. I started by removing the front drive shaft. It should only take a few mins. That allows for a lot more room. I then used a 24" extension, a u-joint socket adapter, a small extension, another u-joint socket adapter, and finally a deep well socket (my regular one wouldn't grab the nut with the length of the stud). This gave me the flexibility I needed for the tight space. You have to be at just the right angle to see the nut. I used one hand to turn the ratchet while the other guided the socket over the nut. With my hand in there, I could no longer see what I was doing but instead did it by feel. It is not easy but doable. Also make sure to use penetrating oil a few days before. The nut shouldn't be torqued that tight but with rust, dirt, etc. it helps. On that same Dorman kit, I also had an issue with the metal connector where the rear and mid feed lines connect. The flares on the lines were too long and didn't allow both nuts to be fully seated at the same time so I had to grind a few mm off in total. Be sure to check for fuel leaks after starting as mine was spraying pretty good when I found this issue on first startup. Chris
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Magnaflow, Borla GMPP, or Dynomax???
Vortec-Z71 replied to Big Whiskey's topic in Gen III and IV Small Block & Drivetrain
I have the GMPP sport and I like it. Wouldn't mind it being louder even. Its probably the loudest at 16-1700RPMS. I cruise at 70 on the highway at 2000RPMs and its not much louder than stock. On cold startup, it sounds aggressive but soon quiets down when the enine warms up. The sound of the GMPP system is very "smooth" as opposed to the Corsa which has more of a burble to it if that makes any sense. I also recommend getting a GMPP exhaust tip if you don't already have one. -
How Rare Are The Gmc Quadrasteers
Vortec-Z71 replied to Syclone74's topic in 1999-2013 Silverado & Sierra 1500
I know GM didn't make too many. It was a really expensive option so it wasn't too popular. Supposedly it's a really well designed system though.
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