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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

2017 Suburban Low Pressure AC port location

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Old Jun 22, 2022 | 1:01 PM
  #11  
Cusser's Avatar
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Originally Posted by jpstickler
I guess I thought that they would have replaced an item with a defect during certification, but that may just be because I didn't want to spend around $1000 on a vehicle I got last summer.17336
I don't think GM or most manufacturers will spend a penny that they don't have to.

This way, when you take it in for TSB 17336 repair, the dealer can try to sell you other needed and/or non-needed services at full prices. When we took our 2005 Yukon in to dealer for an intermittent non-closing sunroof, our "laundry list" included need for new radiator hoses and serpentine belt. Any high school drop could've noticed Gates stickers still on the 2-month old radiator hoses I had replaced, and that I used aftermarket hose clamps too. Plus an aftermarket serpentine belt. My guess is that NO ONE even lifted the hood for that list of needed repairs. By the way: dealer was unable to fix our sunroof, told me they "had no idea what was wrong" and after a little fight they did refund my repair money, as they agreed when I said I'd pay for a FIX but not for a guess. So terrible 4-trip experience, and I eventually pulled the sunroof fuse when it "chose" to close one day (it always would open fine).


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Old Jun 23, 2022 | 8:13 AM
  #12  
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TSB is a service bulletin to aid the techs in diagnosing an issue. Not a safety recall that would be repaired automatically on a CPO or any other used vehicle.
Certified is a reassurance it's clean, accident free and has its original warranty extended by the mileage already on it. I've bought a few CPO's.
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Old Jun 23, 2022 | 8:55 AM
  #13  
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Originally Posted by repairman54
TSB is a service bulletin to aid the techs in diagnosing an issue. Not a safety recall that would be repaired automatically on a CPO or any other used vehicle.
I should have figured that it wasn't a recall, GM wouldn't fix anything for no cost that they didn't have to. When we bought our 1994 Suburban in 2000, the windshield wipers sometimes didn't work when it rained. In late 1998 and early 1999, GM recalled more than 1.5 million pickups and sport-utilities from the 1994-96 model years to replace wiper motor circuit boards and covers. The company said heat and vibration caused solder joints to crack. Somehow the VIN of OUR Suburban wasn't included in this. GM wanted like $50 and $50 installation of new circuit board - which takes like 3 minutes to R&R; I know this because I eventually removed the circuit board and re-soldered the connections to fix, following the instructions/photos I saw online. Poor engineering and manufacture caused vibrations breaking this, and GM wanted to make money from their error.

GM tried to argue that inoperative wipers were NOT a safety risk.

https://www.autoweek.com/news/a21103...-98-gm-trucks/

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Old Feb 27, 2026 | 3:56 PM
  #14  
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Originally Posted by jpstickler
I am trying to do a recharge on my AC that isn't working. I picked up the correct R-1234yf but I am assuming I am attempting to use the incorrect port. I believe the first picture may be the high pressure port and the second picture between the 2 hoses is the low pressure? I am kind of guessing and can't find a decent document on it. Thanks for any help and if you have any advice on how to get to that port on the bottom I am all ears!

I know it's been a couple years but is that the correct low pressure port between the pipes near the manifold? i can't find where your question was answered. Thanks
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