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  1. YukonCrazy

    P0016 Code and Limping Home

    I was driving down the freeway yesterday with cruise set at 70 mph. The engine suddenly got loud and started to loose power. No CEL at the time, but I pulled off the freeway just to figure out what happened. I was able to drive the vehicle home at 55 on the freeway. Now having a hard time...
  2. YukonCrazy

    Transmission Rear Case Extension #24208015 vs #24241496

    Couple years ago I purchased a transmission rear case extension housing. Since then I have had a constant vibration, which makes me question what I originally installed. At that time, I bought the extension housing from Amazon. I recently looked at the housing on the vehicle and it has GM part...
  3. YukonCrazy

    Wet Concrete From Transmission Extension Housing

    My RWD 2008 Yukon has been sitting in the driveway for a couple weeks now because of the work at home thing. I haven't used it at all in that time and yesterday I noticed a big wet area under the vehicle. The driveway has a slight incline so the front end of is slightly raised while parked...
  4. YukonCrazy

    Smooth on Blacktop but Vibration on Concrete

    Just spitballing looking for things to look at that may enhance vibrations on concrete and yet pretty smooth on blacktop. I understand roads are all different, but the vibration I feel does not match any inconsistencies in the road. Tires are almost new with good balance. New driveshaft...
  5. YukonCrazy

    Take Video While Driving

    So while I diagnose this constant vibration issue, which I think can be fixed with a new driveshaft/slip yoke, I would like to take a look at the driveshaft moving and maybe confirm before spending $250. Least expensive way to attach some sort of recording device to the underside of the Yukon...
  6. YukonCrazy

    Amateur Scanner / Diagnostic Tool

    As my 2008 Yukon ages, problems seem to come up more frequently and I would like to diagnose easier. Is there a good tool that isn’t “professional dollars” that will help to diagnose issues beyond reading a code from a CEL? For example, car is running a little rough but no CEL. Is that plugs...
  7. YukonCrazy

    Loud *Click* Backing Up Incline

    I was at a friends house last night that has a relatively steep driveway. When backing out up the driveway, I hear a pretty loud click coming from the rear of the car. Almost like something had popped back into place. Pretty sure it's not the u-joints because those were just done. I wonder if...
  8. YukonCrazy

    Trans Fluid Drip When Parked Front End Incline

    My driveway has a little incline to it. If I park in the driveway forward with the front end of the vehicle slightly higher than the back, there is a small puddle of what looks like transmission fluid on the driveway. If I back the vehicle in the driveway where the front end is at a slight...
  9. YukonCrazy

    Engine Shudder After Hard Stops

    2008 GMC Yukon 5.3 Flex, 2WD, 170K Twice in the past two days, I had to stop somewhat abruptly. Upon doing this, the engine started to shutter/shake like it was going to stall. Putting it in park stopped this behavior and then it went back to a normal idle. Kind of strange and I am not sure...
  10. YukonCrazy

    Engine Noise Coming Through Speakers

    2008 Yukon SLT 5.3 About 60% of the time while driving and listening to the radio, you hear this engine noise/engine rev coming through the speakers. Seems to happen randomly. If I turn the rear radio controls on where just the front speakers are on, the noise stops. I wonder if I need to...
  11. YukonCrazy

    Front Wheel Bad Bearing and Hub?

    2008 GMC Yukon 5.3 flex 2WD 175,000 miles. I have been feeling this vibration from the front of the vehicle for sometime now. It's not an alignment problem. I jacked up the driver side front wheel a few minutes ago. Putting my hands at 9 and 3 on the wheel there is a small amount of play when...
  12. YukonCrazy

    Oil Pressure Low Stop Engine (replaced sensor)

    Check engine light came on and the audible warning telling me there is low oil pressure and to stop the engine. The oil level is fine so that's not the actual issue. I just changed the oil pressure gauge/sensor that is located on the back end of the motor just in front of firewall. That didn't...
  13. YukonCrazy

    Interior Door Handle Part Numbers?

    Both of my front interior door handles have that peeling chrome on the handles which is pretty sharp. Haven't been able to find a thread that lists part numbers yet. Any help?
  14. YukonCrazy

    Drive Side Valve Cover Replacement (OEM vs Aftermarket?)

    Planning on replacing the driver side valve cover with the updated version. Amazon has a couple of options and a pretty good difference in price. I assume both come with a new gasket. I would like to save $50 with the dorman, but only if that's the only difference. Thoughts? 5.3 Engine OEM...
  15. YukonCrazy

    Oil Pressure Gauge at 0

    Got in the car today and noticed the oil pressure gauge is at 0 and not moving. Checked the dipstick and it's setting at the first circle, which should be fine. The CE light is on, but haven't got it read yet. Until then, do I have a bed oil pressure sending unit?
  16. YukonCrazy

    Bridgestone Dueler H/L Alenza

    Ever since I purchased these Bridgestone Dueler H/L Alenza tires from Costco, they have had a vibration in them. I originally went for Michelin, but those were out of stock and I agreed to put these on. Now seems like such a $1000 mistake even after 3 years. The tires still have 50% tread on...
  17. YukonCrazy

    Transmission Mount Question

    Just wanted to confirm something about the transmission mount. I replaced mine the same time I had the driver side engine mount replaced. I recall that the mount only has one attachment bolt that attaches to the cross member and the transmission basically just sits on this mount. Does that sound...
  18. YukonCrazy

    Is there a dash replacement DIY?

    I apologize for creating another front dash crack thread. I do realize there are a few including the very long one that I have posted in many times. My dash has been cracked for a while now and recently the section behind the steering wheel is literally falling apart as you can see. Now I have...
  19. YukonCrazy

    Outside Tire Wear & Alignment Good

    Just rotated the tires again and the front right tire shows signs of outside wear. I am pretty good about keeping the correct tire pressure all the way around. I also asked the dealer to check the alignment and they say the alignment is good. So....what may cause this type of outside wear on...
  20. YukonCrazy

    What's That Smell & How to Remove it

    So my Yukon is officially 9 years old that has been abused by 3 kids for the past 4 years. So the carpet is probably more like a petri dish. Suggestions on getting rid of the smells without replacing the entire carpet?
  21. YukonCrazy

    Loose Red Wire Driver Side Wheel Well

    I was changing brakes and noticed this red wire dangling that is not connected to anything but should be. Any idea where this connects to? Looking down under under the hood.... Looking from drier side wheel well...
  22. YukonCrazy

    Bad Hub?

    If you grab the top and bottom of the hub and there is some play up and down/in and out, may mean there hub is bad? Is that a tough replacement if you get the wheel bearing/hub assembly?
  23. YukonCrazy

    Front Brake Rotor Set Screw - Front Suspension Part

    I am changing the front rotors and pads and noticed that single little set screw that attaches the rotor to the spindle is missing. Any side affects of not having the set screw in there? Also, what is this part called with the grease fitting on it? Look worn out? I am able to wiggle it back...
  24. YukonCrazy

    Front Left Side Sitting Almost 2 Inches Lower

    I have had this single *click* coming from front left for a while now when with wheel turned from a dead stop. Today measured from the bottom of the center cap to the bottom of the wheel well on both sides. The left side is almost 2 inches lower. Bad strut? 2008 GMC Yukon 5.3 Flex SLT 2x4
  25. YukonCrazy

    Engine Diagnostics?

    If your engine is running rough but there are no codes being thrown, is there any way to diagnose what the problem is? For example, is there any software you can hookup to the vehicle that would point to say a bad coil pack on cylinder #4? Would an OBD II scanner tool give you that kind of...

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