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    CV Axle Noise During Low Speed Maneuvers?

    Searched and didn't see anything that addressed what I believe is my issue. Is it possible for the CV axle(s) to make a "whirring" sound? Is that an indication of anything going bad? It's primarily noticeable at low speeds (<5 mph) when turning (2wd is selected on the dial). Especially when...
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    Rear Leveling & Z55 Suspension

    Has anyone successfully raised the rear ride height (1-2”) on a vehicle with the Z55 air leveling shocks? I have a 2012 Suburban LTZ and have installed the Suspension Maxx leveling kit in the front (1.5”). There’s a small amount of rake towards the rear. I’d like to raise it about an inch...
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    Front & Rear Heater Core Flush

    I’m changing fluids in my new to me 135k mile 2012 Suburban and the coolant is next. While doing so, I thought it might make sense to flush both heater cores. I haven’t seen much info on flushing the rear one. Is there anything I need to be mindful of? Sent from my iPhone using Tapatalk
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    Electronic HVAC Controls

    Looks like the HVAC controls for a 2012 are discontinued. Any replacement options out there? Sent from my iPad using Tapatalk
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    Center Console Compartment Light?

    Do the GMT900 consoles have a compartment light? It looks like there’s a spot for one, it’s difficult to see based on location. Sent from my iPhone using Tapatalk
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    Sensor PM

    I have a problem. I like to find reasons to do preventative maintenance on my vehicle. This causes side effects of a lighter wallet and time spent. That said, at 8 yrs old and 135k miles, is it prudent to replace any sensors? Some examples would be MAF, MAP, O2, vapor canister purge valve...
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    Skid Plates

    Is there a factory skid plate package for these SUVs? Would a Z71 have them? Sent from my iPad using Tapatalk
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    Floor Liners and Mats

    What’s the consensus here on a floor liner and/or mat brand & type to use with the GMT900s? Saw the Husky X-Act Contour and Weatherbeater. Not too clear on the difference. I need to get something for the Suburban. I’m thinking liners up front for sure. Haven’t decided whether to do carpeted...
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    Escalade Power Tilt Adjust

    Has anyone attempted to swap in an Escalade steering column with the power adjust feature? Sent from my iPhone using Tapatalk
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    2012 Suburban LTZ 4wd Inspection - Have questions

    So I brought this vehicle home last week and I’m looking things over throughout. I wanted to get some input on a few things I found. First, a little history. It’s a 3/3012 build and spent the first 8 months of its life as a GM corp vehicle in Michigan. Then the rest was spent in Texas in the...
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    Swapping intake manifold & throttle body on a 5.3

    With an otherwise stock motor, is there any benefit to swapping a truck 6.2L intake and a Corvette/Camaro (I believe) throttle body onto a 5.3L? I searched and didn't see any info on it. Of course, that could be operator error.
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    What are these?

    Picked up a 2012 Suburban. While checking things out, I found what appears to be straps? Are they OEM? Sent from my iPad using Tapatalk
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    2007 - 2014 GMT900 SUV Model Updates

    I'm getting ready to pull the trigger on a 2012 Suburban LTZ 4wd. I'm not too familiar with these models as I am the K2XX and GMT800s. I'd love to know what updates GM did to this platform over the model years (electrical, mechanical, cosmetic, etc). I did some searching, but didn't find a...
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    Looking for 2012 - 2014 Tahoe LTZ - Opinions Needed

    I'm looking for a Tahoe LTZ 4WD and wanted some opinions about factory options. Specifically, HD trailering, 2nd row captains chairs and sunroof. Finding one with all those would be ideal, but seems to be a unicorn. I've found some with the HD trailering (additional fluid coolers, 3.42 gears...
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    Pics Needed: Door to Body Harness Connector End Views

    I’m working on a wiring solution for those that want to add features like puddle lamps, illuminated Escalade handles, etc. and need pics of the door to body harness connectors for LS, LT and SLE trims. Specifically, views of the connector ends where I can see what pins are/are not present. I...
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    Circuit 6844 - Need Help

    Hoping any of you with the factory power assist steps (RPO BRS) can help me trace a wire circuit. Specifically, I’m looking to see if GM put 2 blue/yellow striped wires in position 42 on the body side of the X225 body harness to instrument panel harness connector. It’s gray in color and...
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    Yukon Headlight Alignment?

    Anyone know how to align the headlight housings for a 2015 Yukon? I swapped in OE HID housings and need to align them. I see what looks like one alignment screw, but I'm hoping someone here has experience doing it. Sent from my iPad using Tapatalk
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    Denali Cluster with Heads Up Display

    Installed a Yukon Denali cluster and HUD unit in my 2015.5 Yukon SLT this weekend. The cluster had to be programmed to my vehicle and to enable HUD functionality. I created a custom wiring harness as the only way to add those connections is through swapping the I/P harness. The rest was just...
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    Leveling With Bilsteins

    Has anyone leveled with the 24-251976 Bilsteins? I have a 2015.5 Yukon SLT 4WD with the HD trailering package (includes the rear air leveler) and I need 1.5-2.0 inches to be level. Bilstein's notes say "Excludes Police Package; Excludes Z85 Premium Smooth Ride Suspension Package with Air...
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    Forward lamp harness help

    Looking for the p/n for the forward lamp harness headlamp connector on 2015+ Yukon. The actual harness itself has two p/n's: 23259797 or 23453186 Alldata doesn't have any 2015 info and they're not scheduled to update again until June. Sent from my iPad using Tapatalk
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    How To: Yukon Door Molding Install

    I decided to go with body color door molding. Here's how I put it on. I stopped by the dealership and took some measurements to see where the factory installed them. All I checked were around 1 inch from the bottom door crease. Here's a couple examples. Forgive my terrible photo skills...
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    How To: Denali/LTZ Rear Bumper Step Pad Install

    So you really don't want to do this. It's a PITA to remove the existing step pad. Just stick with the chrome adhesive strip off ebay. ...unless your OCD. Here's how I did it. The part number for the GM step pad with chrome trim is 22936467. Like most things on this truck, it seems GM wants...
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    Upgrade your OEM air filter

    Doing some maintenance on my new to me Yukon and had an interesting find with the air filter. The replacement filter part number noted in the user manual appears to be a "high capacity" version (read: more pleats, thus, increased surface area). This may be common knowledge, but I thought I'd...
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    Disappointing find: oil in the intake

    2015i Yukon SLT with 20k miles. I know this not a new issue with GM vehicles, but I'm disappointed it hasn't been addressed. I was doing some PM and inspecting. Took the air plenum off to clean the throttle body, which was dirty, and found this in the intake. Also had oil in both hoses...
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    How To: Yukon headlight removal and HIR bulb install.

    Unfortunately, there's no way around it. The bumper has to come off to remove the headlights. There are a total of four bolts that hold the headlight in. The two obvious ones under the hood and these two. Once removed, the headlight pulls straight out. I also put some HIR bulbs in for...

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