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About Ianf

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  1. Canadian law is DRL is on when out of park. If there are no dedicated DRLs then the low beams must come on. Usually if you start the truck and do not put it out of park, you can turn them off by turning the auto lights to off momentarily. When you then go put of park the light will come back on.
  2. If you already have the Power mirrors, then the signal wire is already in the bundle and it should be plug and play
  3. I just used the relay harness on my 2010. It works fine with no messages on the dash. Being in Canada I also have my lows as DRLs and they run all the time. You will get flicker without the relay harness.
  4. can you not get at it through the bacj and compress the locking tabs seeing as how it is off the truck. Alternately remove the retainer and take the whole piece out to remove the lock.
  5. My 2010 4.8 2WD does the same. I found that I had a vacuum leak in the valve cover test port which i plugged (probably broken off by my mechanics helper when he changed my plugs). My fuel alcohol percentage goes up to 35% sometimes even though we can only get E10 here. Kills my mileage and i need to reset the percentage and fuel trims regularly. I use a VXDiag to do this and my PC. This is caused by improper fuel filling procedures. You need to fill up when the truck is already warm and drive for 7 to 10 miles for the ECM to calculate the proper alcohol content. I do not follow this procedure as I do not usually drive that far at any one time (retired).
  6. Definitely the brake switch at the top of the pedal. Very quick and easy repair. Does your Traction control and stabilitrac lights also come on from time to time? There are multiplr circuits in the seitch for vontrolling lights, brakes cruise. Any one of the circuits could be out and then the whole switch needs repalcing.
  7. I reset mine using a VXDIAG for GM and my PC. If you have a flex fuel vehicle the ethanol % may be way off as well. It can also be reset. I found the test port of the manifold cover was removed which was giving me high long term fuel trims. What codes are you getting?
  8. No way to disable the light that I know of.
  9. Yes Bolt pattern is different on 2011+ is 8X180mm on 2010 and earlier it is 8X6.5in
  10. On the 2008 you van air out the tires for a few seconds instead of learning with the tool. The 18s will definitely work in the 08s (same frequency). Follow the instructions in the owners manual.
  11. Sorry you are correct on the orange wire it is for the CHMSL (brake light) It was too early for me that morning. I took my backup feed for the camera off of the seven pin trailer connector for the camera itself and hardwired the monitor so it is constantly on so there is no delay when I go in reverse. You will not need a step down for the monitor, you could use a 1amp inline fuse but it is not necessary as your monitor will only draw what it needs.
  12. go to gmfitter website and lookup the SEO upfitter connections sections. There is already RAP fused in that junction. I used it to power my backup mirror monitor. There is also a backup wire under the dash that is blunt cut and fused for the trailer brake controller if you do not have the factory trailer brake. I believe it is the orange wire in that bundle and should be marked.
  13. It will take up to 30 restart cycles to clear the code if it was just for the misfire
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