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  1. Mrfix71

    Finally - P0107 code

    Thanks! Not a big fan of diagnosis thru swapping parts and free time is in short supply.
  2. Mrfix71

    Finally - P0107 code

    I replaced the Map sensor but it didn't help. IIRC, something indicated new one was defective so replaced that about a week later. Soon, same problem all over again and experienced engine shutting off a couple times in worst possible places. Took the truck to a shop I trust who stated the...
  3. Mrfix71

    Finally - P0107 code

    For a couple weeks now, my '07 Tahoe 5.3 would lurch or stumble after restarting and leaving the store or something. Cold start would be just fine, only would act up when accelerating after the first stop. However, it would not indicate anything on the dash or throw a code when a scanner was...
  4. Mrfix71

    LED Lighting upgrade

    I had to remove the headlight housings to troubleshoot and replace an aftermarket HID headlight ballast on my '07 Tahoe LTZ. Since I had so work so hard to get the housings out enough to get access to the back (problem #1), I decided to upgrade the other bulbs to LED and got the Sylvania...
  5. Mrfix71

    Body Control Module?

    If I have to remove the bumper and all to get to the ground, I may go ahead and run a different supplementary one. So far, I am making headway with various subsystems actually having different causes. Weird that they all occurred withing weeks of each other! Plus I suddenly have a tire with...
  6. Mrfix71

    Body Control Module?

    What a mess. I could not get to the G100 ground without removing the entire front end, apparently. So, I ended up snooping behind the wheel well and washer tank. Someone had hacked into the pumps' wires and messed it all up. In addition to all of the empty and broken zip-ties, the tape and...
  7. Mrfix71

    Body Control Module?

    Finally have a day that I can look at my Tahoe. While attempting to get to the G100 ground (based on above diagram) and look for a problem, I found a confusing mess of cut and taped wires under the washer tank and behind the D/S wheel well. There is a silver box dangling, which I can only...
  8. Mrfix71

    Body Control Module?

    Thanks Galante! When you say pull the fuse box, do you mean to split the box top from the bottom using those cam handles? Looking at the schematic, I am gonna check the ground on the Lower Left Radiator Support! I tried posting in another forum a couple of days before I tried here. Never did...
  9. Mrfix71

    Body Control Module?

    Right after I got my Tahoe, I similar things were going on but I found moisture between the fuse box layers. Blew out the water and added some dielectric grease fixed that! With this current wave of problems, I have been wondering about a common ground. The battery cable view is interesting, but...
  10. Mrfix71

    Body Control Module?

    What winter weather to be troubleshooting my truck! The last couple of months has revealed several things about my 2007 Tahoe LTZ. New tires in the summer, then all sorts of strange system things started to happen. Some issues were not looked at then due to a replaced front hub and several...
  11. Mrfix71

    C0161 code - Traction Control / Stabilitrac problems

    A week ago, my AC fan motor went out also. However, while I was testing everything, the motor came on and works fine. :hmmm2: I did not notice the traction control error yesterday when I drove a short distance but sure will pay attention today as I drive to work. Seems odd if they are...
  12. Mrfix71

    C0161 code - Traction Control / Stabilitrac problems

    On my '07 Tahoe 4wd, my dash lights up with the Stabilitrac/Traction Contol error and usually prevents cruise control function. When I had the computer scanned at a major parts store with live data stream selected, all that showed up was the C0161 error and erratic voltage spikes. Anyone with...
  13. Mrfix71

    '07 Tahoe horn problem

    It seems like just changing out the horns will more of a chore than any other I have done before. :( I looked a while back for a guide on working on the horns without much success. is there a guide or something out there?
  14. Mrfix71

    Misc '07 Tahoe electrical problems

    Hopefully, I explain this clearly enough so it may help others. I recently fixed several problems such as intermittent/weak horns, inop front washer pump, and other random problems. After lots of fruitless troubleshooting, I was trying to test the horn relay (which I still haven't found)...
  15. Mrfix71

    '07 Tahoe horn problem

    I recently bought a beautiful 2007 Tahoe LT 4x4. After a test drive and verifying the important stuff, I got it home and was playing with some of the many luxury features. During all the doodling, I noticed that the horn did not work. I replaced the blown 15a fuse but the horn still did not...
  16. Mrfix71

    Cruise control not working

    My (new to me) 2007 Tahoe LT doesn't have a functioning cruise control but with what I have read here on the forum, I narrowed it down to a faulty brake switch. I played with the switch for a while and even took it apart. But, most of all, when I went for a test drive, I lifted up the pedal with...

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