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About cs15dah

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    2015 Suburban LT 4WD

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  1. Inside Door Handle

    Take the door panel off and take a look. Might be a simple fix. There are YouTube videos that show you how to do it.
  2. https://chevroletforum.com/forum/tahoe-suburban-25/tailgate-opening-itself-4782/page4/
  3. Done. Thanks for the help, fellas. ACDelco’s 75W-90 in the front and 75W-85 in the rear. Also did the transmission and transfer case fluids, since I was already underneath the truck this weekend. I’ll eventually get around to dropping the trans pan and do the filter at another time. Used Valvoline MaxLife. Next time I’d like to go with the new Mobil 1 fluid being discussed in the transmission shudder thread.
  4. What Shocks?

    The front struts went in today. Wow, struts aren’t that bad at all to install! I shoulda learned how to do struts years ago...
  5. After reading several stories about people nearly crashing because their brakes didn't work because their vacuum pump failed, I thought I'd try to stay ahead of the problem and preemptively replace my vacuum pump. GM part number 12659655. GMPartsGiant.com says it's discontinued. Neither AutoZone nor NAPA have a part listed at all. WTF?? How do I get a new vacuum pump?? Has anyone actually been in an accident because their brakes failed due to the vacuum pump issue? I haven't read any stories of actual accidents, just a bunch of close calls.
  6. What Shocks?

    Got the rears in tonight. Holy smokes, what a difference! The old ones are probably original. 113,360 miles. The left rear compressed easier than the new ones and rebounded very slowly. The right rear was totally shot. Compressed with no effort and did not rebound at all. Now... to look at strut videos on YouTube over the next few days, rent a strut compressor from Auto Zone, and tackle the fronts over the weekend. Anyone ever replace the filter on their compressor? I imagine if it uses a desiccant that it could use a 'refresh.' Looks like GMPartsGiant.com sells it combined with the tank. Part number 22941807.
  7. Second Row window slit?

    I really have no idea. It was just a thought. Maybe a wrong one... ;)
  8. Second Row window slit?

    Next time you have the back door open, look at the door latch.
  9. Alright, then I’ll order the two different weights. 3 quarts each for each differential should be enough?
  10. 2015 Suburban 4wd. Why is there two different viscosities of gear oil for the differentials? Owners’ manual says 75W-90 (10-416 Synthetic Axle Lubricant) in the front and 75W-85 (10-4091, Rear Axle Lubricant High Efficiency) in the rear? Any idea why? Any reason not to use Mobil 1 75W-90 (Synthetic Gear Lubricant Limited Slip) in both?
  11. What Shocks?

    Thanks! Yeah, I considered Bilstein. But with the air shocks in the rear I suspect I have to stay with OEM. Not sure if the fronts make any difference. They “look” like normal shocks.
  12. What Shocks?

    I did that with GMPartsGiant.com. But like I said, it contradicts info on GMPartsDirect.com. So unless I knew for sure, it would be a gamble. Especially since GMPartsDirect.com says they're not compatible with my vehicle.
  13. I need to replace my shocks. 112,000 miles and I'm bouncing around. Especially in the rear. I think I got my rears figured out. But I can't find any info on my front shocks. How do I know what kind I have, so I know what to buy? I have a 2015 Suburban LT 4WD. I believe the relevant RPOs that I have are: NHT : Performance Package – Enhanced Towing Z82 : Trailer Provisions, Special Equipment, H.O. Z85 : Chassis Package, High Payload Firm Ride I also have 6SH and 7SH on my RPO sticker. I don't know what that means, but looking at shock websites all weekend makes me think they're related to the front shocks, with the 6 being driver's side and 7 being passener side. I don't know what all my other RPOs stand for. I have 106 of them. I've had to piece it all together from different websites because I haven't found a single site with an all inclusive list. I still have 33 more to figure out. But I digress... If I'm missing an RPO that you need to know to identify my shocks, please let me know and I'll see if it's listed on my sticker. My fronts are a mystery. The sticker on my front shocks look like they say part number 23183885. Searching for that number at any GM parts website doesn't return any hits. Other numbers on the sticker are (and I apologize if these are wrong, I'm trying to read a faded sticker): AA3C, and CE22344 or CE223844. There's also another number that goes something like 14 156 0x4x1 AA3C. The x's are numbers I can't read. GMPartsGiant.com shows 23276075 as being compatible with 6SH and 7SH, and nothing else to help me narrow it down, so it would be a guess and a gamble to buy these. But when I take that part number over to GMPartsDirect.com I get an error message saying 23276075 does not fit my vehicle?! My rears say 23458661 and say ABZW. They also say 0E22394. Looking at GMPartsGiant.com they appear to be a new number: 23276087 that fits vehicle option Z85 (perfect, I have that!) and replaces 23458661 (perfect, that's what the sticker on the shock says!). GMPartsDirect.com also has 23276087 and shows that they're for without magneride (good, don't have that), code AB69 (mine says ABZW, problem?), and Increased Capacity Package (does that mean Z85?). So I believe I have the right rear shocks. But I'm at a loss as to what the fronts are supposed to be. Any help out there?

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