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  1. Joseph Garcia

    Battery Tender with De-sulfication Built It

    I'm interested in purchasing a battery tender with the additional feature to remove sulphur deposits from the plates. I believe that some on you have made this purchase, and I'm interested in what brand that you purchased, and your thoughts on how it performs.
  2. Joseph Garcia

    C0035 - Diagnosed and Fixed

    I recently had Stabilitrack and ABS dashboard warning lights appear, along with DIC warnings Traction Control Off and ABS Off. I got out my Tech 2, and it told me that I had an issue with the Left Front Wheel Speed Sensor Circuit. I figured that the wheel speed sensor or the speed sensor ring...
  3. Joseph Garcia

    Foam Connecting Air Intake box to Engine Bay Sidewall Rotted Away

    I believe that there has been discussion in the past in this Forum on replacing this foam with other materials to seal the connection. Any insights or links would be appreciated.
  4. Joseph Garcia

    Lift Gate Not Lifting Fully - Solved

    I recently had a situation where upon activating the lift gate, it would lift approximately 30%, and then it would lower and re-lock into the closed position. My Tech 2 showed, "Hall sensor feed status with no output when closed, and short to ground when open command initiated." I did an...
  5. Joseph Garcia

    Kill Switches in Future Autos and Trucks

    This is NOT meant to be political in any way. Period. This is an article that I ran across, and if it is true (I cannot personally verify this), I was certainly not aware of it, and perhaps, other members in this Forum also may not be aware of it. ---------------------------- According to...
  6. Joseph Garcia

    Another Tech 2 Win

    I had the Service Park Assist advisory appear on the DIC, so I got out my Tech 2 and started troubleshooting. This is the screen that I saw on the Tech 2 during the troubleshooting process. I consulted with AllData to find out which park assist sensor was #4, and luckily, it was the right...
  7. Joseph Garcia

    Rock Auto?

    I've been trying to access Rock Auto's web site for the past 2+ days, and I keep receiving the same message. This site can’t be reached www.rockauto.com took too long to respond. Is it just me?
  8. Joseph Garcia

    Migration from ACDelco TDS to GM Techline Connect for Tech 2 Users

    Hi Folks, As you probably know, ACDelco TDS (TIS2Win) site for Service Programming Software (SPS) has been retired, effective September, and current subscription holders need to migrate to its replacement GM Techline Connect. Below, I offer you the process that I used to perform this...
  9. Joseph Garcia

    LOTS of GM Trucks Spotted

    Hi Folks, I'm back from a week in the Grand Tetons National Park, and I want to tell you that I saw MANY GM trucks from NBS through 2021 models driving through the Park and surrounding areas. When I say MANY, I mean that there were more GM trucks driving around than all other truck makes...
  10. Joseph Garcia

    Humorous Story and Question

    Hi Folks, I thought that I'd share a humorous story with you, and then ask for your thoughts and perspectives on a question that came out of this story. Story: I get a call from, my oldest son asking if my Yukon is available to assist him with a problem. I say sure and ask him what the...
  11. Joseph Garcia

    Converting back the Z55 Air Ride Suspension

    After considering the various recommendations from you knowledgeable folks here in the Forum, I am going to convert back to the original Z55 air suspension on my 07 Yukon XL Denali. I will change out the entire front strut assemblies, as I do not know the condition of all their current...
  12. Joseph Garcia

    Hellwig Sway Bars Installation - 2007 Yukon XL Denali

    Hi Folks, I completed my Hellwig sway bars installation, and apart from getting the old sway bar components removed, the installation went reasonably smoothly. I am not a patient uninstaller, so I snapped one U bracket bolt and bent 3 others, during the old sway bars removal process. Hellwig...
  13. Joseph Garcia

    Looking for Advice on Replacement Shock/Spring Options

    Hi Folks, As I was installing my new Hellwig sway bar on the rear of my 07 Yukon XL Denali, I noticed that I have a leaking rear shock. So, I need to replace the rear shocks. When I purchased this new-to-me truck, the OEM rear air ride had already been replaced with cheap coil-over shocks. I...
  14. Joseph Garcia

    Need a Part Number

    Hi Folks, I'd like to get a white trailer hitch cover for my 07 Yukon XL Denali, but I want to be sure that I purchase an OEM cover, so that I have not fit or paint color difference issues. I cannot remember the name of the Forum member here who supplies part numbers to all of us, but I will...
  15. Joseph Garcia

    It's That Time of the Year, Again (at Least, in the North)

    I was taking supplies out of the back of my 07 Yukon XL, and I happened to glance up at the top of the truck body, at the channel where the lift gate hinges and rubber rain molding are. I see this mass of dark feathers, and my first though is that 'somehow' a bird got caught in between the lift...
  16. Joseph Garcia

    What is this Button? - Solved

    While I was under the driver's side dashboard troubleshooting another issue, I found this black toggle button, between the steering column and the center console, right underneath the lower trim panel, about where the driver's right knee cap would be located. Any idea what this button is and...
  17. Joseph Garcia

    Help Needed - B1000 Symptom 35 Trouble Code - SOLVED

    Hi Folks, I need some assistance from the Team. I started using my Tech 2, and I currently have two trouble codes. History: When I first used the Tech 2, I found out that it was working correctly, and I cleared all previous trouble codes, in order to start with a clean and blank slate...
  18. Joseph Garcia

    The Clunk that was Not the Drive Shaft Slip Yoke - Solved

    I've had a clunk in my 07 Yukon XL Denali, since I bought it as-new-to-me, and I have finally solved it. Whenever I was stopped and pushed the accelerator pedal, I would hear/feel a clunk somewhere under my seat. Similarly, whenever I was slowing down, and the transmission downshifted, I would...
  19. Joseph Garcia

    Heater Hose Blew Out

    Hi Folks, I just had a heater hose blow out on my 07 Yukon XL Denali. As the photo shows, it appears to have literally 'torn' itself off, right at the back side of the crimped coupling on the end of the hose, as it looks like there is still hose within the crimped coupling. Question for...
  20. Joseph Garcia

    How Much Water Accumulates On the Roof of a Yukon XL

    How much water accumulates on the roof of a Yukon XL during a long rain storm? Short Answer: A freakin' LOT. Long Answer: Yesterday it rained for the entire day with my Yukon XL remaining outside, something that I do not usually do. With today being over 60 degrees in NH, I decided to put...
  21. Joseph Garcia

    Is There a Cabin Air Filter, and Where

    Hi Folks, I've got an 07 Yukon XL Denali, and I'm asking if there are any interior cabin air filters, and if yes, where are they located? Thanks in advance for your responses.
  22. Joseph Garcia

    305/50x20 Tires fit 2007 Yukon XL Denali - Confirmation

    Hi Folks, First of all, I wish to thank all of you who responded to my previous inquiries, regarding whether or not a 305/50x20 tire would fit on my 2007 Yukon XL Denail with stock wheels (8.5jx20 ET31), without any modifications. Most of your replies stated that this tire size would 'most...
  23. Joseph Garcia

    Question - Leveling and Front Wheel Geometry

    Hi Folks, I'm doing some pre-work research on potential wider tire options for my 2007 Yukon XL Denali, say possibly 285, 295 or 305, and reading through existing threads, it appears that I will need to do some leveling/lifting, in order to accomplish this. I have also read that the maximum...
  24. Joseph Garcia

    How do You Re-attach a Rear Window Defroster Electrical Connector

    2007 Yukon XL Denali Hi Folks, I've got a detached electrical spade connector from the rear window defroster strip on the rear window. It looks like it was soldered on, but this may have been a repair made by the previous owner. Any suggestions/recommendations on how to re-attach the...
  25. Joseph Garcia

    How to Replace Turn Signal Flasher on 2007 Yukon XL Denali

    I recently upgraded my incandescent turn signal lights to LED, and I now have hyperflash. I do not want to go the resistor route to eliminate hyperflash, and I would rather replace the turn signal flasher with an LED-compatible flasher, if possible. I've searched the web to find the location...

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