What did you do to your NBS GMT800 Tahoe/Yukon Today?

[Rocket Man]

I put a new compressor and accumulator and orifice tube in this weekend.
I also redid the compressor connector and the refrigerant pressure sensor connector too.
Purged with nitrogen, vacuumed and weighed the charge back in. Nice and cold. The diode had failed and it was sending a volt spike through the system when it world disengage the compressor clutch. I'm gonna clean the evaporator coil tomorrow with that cool automotive foaming coil cleaner that you feed the little tube up the drain tube and spray.
Dropping it off to get the CV axles and wheel bearings put on tomorrow morning. Gonna clean the coil when I get home.

I need to do something similar. My AC isn’t blowing very cold so I had a shop recharge it but he said it looks like my compressor isn’t working because the pressure doesn’t go up and down when it cycles on and off. I know nothing about AC. Does this sound right? Afaik it’s original at 170k. A couple months ago it threw the belt a couple times. Is there a way to check the compressor? Also, what else do you guys recommend replacing while the system is apart? Accumulator and orifice tube? How about the condenser? I see RA has a bundle with the condenser.

 

[tooleyondeck]

I upgraded my RSE system, and installed a CarPlay receiver and Roku stick while I was at it. The vehicle had a previously installed RSE system (00s era) that was beyond dated and obsolete. I picked up a couple of headrest receivers and a new flip down screen as well as all the necessary wiring to power and link them. I got the BOSS CarPlay receiver from Crutchfield along with the harness to maintain the Bose amp and SWC and used their ready harness service (definitely recommend those). It looks like the previous system was installed professionally, so that saved me a ton of headache with the wiring, so it was basically plug-n-play (or butt-connect-n-play rather). Works great and keeps the kiddos (mostly) at ease on road trips.

I'd be happy to create a thread on how I ran everything if anyone's interested, I couldn't find anything covering this in detail in the forums.

Now to diagnose and fix this newly acquired death wobble

 

[05Single]

Man, that thing looks sad..! 26093753

OEM NEW Column Transmission Shifter Lever Boot 99-09 GM Truck SUV VAN 26093753 | eBay

Genuine GM Part Number: 26093753. Transmission Shifter Lever Boot is a direct fit for the following 1999-2006 GMC Sierra 1500. 2000-2004 GMC Jimmy. 2000-2004 Chevrolet S-10 Blazer. 2000-2004 Chevrolet S-10.

www.ebay.com

Genuine GM 26093753 Automatic Transmission Control Lever Housing Seal
https://a.co/d/3fwHDFz

But personally, I dig the new angle, and color, etc.. of the “Maple Sugar” shifter I put in from a 2018-2019 Esky:

84171609 | eBay

Find many great new & used options and get the best deals for 84171609 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

ETA: man, these have gone way up (like everything else..!) I paid about $75 for mine. Of course, you’ll have to swap the rubber boot with the correct one for GMT800 (26093753), and I doubt this color would work with your interior. (Or is that a tan interior…?) The description in that ad is pretty funny..

Ordered. It’ll fit my nnbs shifter. Which I have plans to customize my own way.

 

[Rocket Man]

I need to do something similar. My AC isn’t blowing very cold so I had a shop recharge it but he said it looks like my compressor isn’t working because the pressure doesn’t go up and down when it cycles on and off. I know nothing about AC. Does this sound right? Afaik it’s original at 170k. A couple months ago it threw the belt a couple times. Is there a way to check the compressor? Also, what else do you guys recommend replacing while the system is apart? Accumulator and orifice tube? How about the condenser? I see RA has a bundle with the condenser.

***crickets***

 

[latvius]

***crickets***

I was gonna let someone else reply who may know more, but 1st if your Freon was low you have a leak. Might want to put dye in it and see if you can find it then replace the parts you mentioned. Yes I would do accumulator/drier, compressor orifice tube and the condenser. I would have thought if you compressor wasn't building enough pressure why would it cycle off, but I'm not an expert so maybe something I don't know but given the fact it threw belts something ain't right with it. You'll need a vacuum pump once you replace all the parts to pump it down before you put Freon back in.

 

[Rocket Man]

I was gonna let someone else reply who may know more, but 1st if your Freon was low you have a leak. Might want to put dye in it and see if you can find it then replace the parts you mentioned. Yes I would do accumulator/drier, compressor orifice tube and the condenser. I would have thought if you compressor wasn't building enough pressure why would it cycle off, but I'm not an expert so maybe something I don't know but given the fact it threw belts something ain't right with it. You'll need a vacuum pump once you replace all the parts to pump it down before you put Freon back in.

I didn’t say it was low on refrigerant. I took it in and had it charged because I thought it might be. It was a friend who owns a body shop. He has the equipment so he vacuumed it and charged it but it didn’t help, it’s the same. I’m not sure if the compressor cycles off, I know it turns on and the fans come on. Like I said, I don’t know sh*t about AC. I’ll first try to see if I can troubleshoot with my Tech2 but for the 02’s there isn’t much in the menu under HVAC. Thanks for the suggestions.

 

[Sam Harris]

Ordered. It’ll fit my nnbs shifter. Which I have plans to customize my own way.

Perfect.. looking forward to the results.

 

[clandr1]

I didn’t say it was low on refrigerant. I took it in and had it charged because I thought it might be. It was a friend who owns a body shop. He has the equipment so he vacuumed it and charged it but it didn’t help, it’s the same. I’m not sure if the compressor cycles off, I know it turns on and the fans come on. Like I said, I don’t know sh*t about AC. I’ll first try to see if I can troubleshoot with my Tech2 but for the 02’s there isn’t much in the menu under HVAC. Thanks for the suggestions.

Bad pressure switch perhaps? If it's taking refrigerant and not cycling/compressing, it's possible the switch is bad and keeping the compressor from kicking on. It's cheap and easy enough to replace that it might be worth it to fire up the parts cannon before you do something more labor intensive.

 

[Rocket Man]

Bad pressure switch perhaps? If it's taking refrigerant and not cycling/compressing, it's possible the switch is bad and keeping the compressor from kicking on. It's cheap and easy enough to replace that it might be worth it to fire up the parts cannon before you do something more labor intensive.

That’s worth a try. I just ordered one. Thanks.

 

[05Single]

I upgraded my RSE system, and installed a CarPlay receiver and Roku stick while I was at it. The vehicle had a previously installed RSE system (00s era) that was beyond dated and obsolete. I picked up a couple of headrest receivers and a new flip down screen as well as all the necessary wiring to power and link them. I got the BOSS CarPlay receiver from Crutchfield along with the harness to maintain the Bose amp and SWC and used their ready harness service (definitely recommend those). It looks like the previous system was installed professionally, so that saved me a ton of headache with the wiring, so it was basically plug-n-play (or butt-connect-n-play rather). Works great and keeps the kiddos (mostly) at ease on road trips.

I'd be happy to create a thread on how I ran everything if anyone's interested, I couldn't find anything covering this in detail in the forums.

Now to diagnose and fix this newly acquired death wobble

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Clean work my dude

 

[latvius]

I didn’t say it was low on refrigerant. I took it in and had it charged because I thought it might be. It was a friend who owns a body shop. He has the equipment so he vacuumed it and charged it but it didn’t help, it’s the same. I’m not sure if the compressor cycles off, I know it turns on and the fans come on. Like I said, I don’t know sh*t about AC. I’ll first try to see if I can troubleshoot with my Tech2 but for the 02’s there isn’t much in the menu under HVAC. Thanks for the suggestions.

You can watch the compressor as it cycles off and on, it should do it pretty often and you can hear it. The pulley will always spin because it's connected to the belt but the inner circle of the pulley will stop rotating and start when it cycles off and on. So crank up the a/c and stare at the compressor pulley for about 5 minutes if you see anything different in the way it spins coinciding with a click as it start and stops it's not engaging.

 

[TEXCHEVY]

Today just an engine oil change

 

[TEXCHEVY]

I mounted the sensors, spartan work!!! ) (the kit has not yet arrived), I traveled about 100 km, at the moment no error code in diagnosis. Engine light off. The engine runs well on gasoline and also lpg

Update: 3500 km, no error code

 

[Tonyrodz]

Got this today.

 

[Rocket Man]

Got this today.View attachment 377751View attachment 377752

Is she running good now?

 

[Tonyrodz]

Is she running good now?

Hell no. I'm totally frustrated with it, and I don't really have any time to play with it. Pretty sure the mechanic will get to the bottom of it.

 

[GreenTahoeZ71]

I didn’t say it was low on refrigerant. I took it in and had it charged because I thought it might be. It was a friend who owns a body shop. He has the equipment so he vacuumed it and charged it but it didn’t help, it’s the same. I’m not sure if the compressor cycles off, I know it turns on and the fans come on. Like I said, I don’t know sh*t about AC. I’ll first try to see if I can troubleshoot with my Tech2 but for the 02’s there isn’t much in the menu under HVAC. Thanks for the suggestions.

Hey, sorry it took me so long.
If you do the compressor, get the GM genuine. Also get the delco accumulator. Don't forget to get the orifice tube either.
I would also do the cycle switch on the accumulator and the refrigerant pressure sensor.

Also get a couple cans of this and follow the instructions to clean the evaporator coil in your dash.
you just feed the hose into the evaporator case through the drain and foam coil.
a dirty evaporator will keep killing the compressor.

Lubegard 96030 Kool-It Evaporator and Heater Foam Cleaner https://a.co/d/aTifebB

Have you replaced the little gray relay in the fuse box under the hood? That will make the compressor not cut on too. You can swap it with the horn relay to check it.

Hope this helps

 

[GreenTahoeZ71]

I need to do something similar. My AC isn’t blowing very cold so I had a shop recharge it but he said it looks like my compressor isn’t working because the pressure doesn’t go up and down when it cycles on and off. I know nothing about AC. Does this sound right? Afaik it’s original at 170k. A couple months ago it threw the belt a couple times. Is there a way to check the compressor? Also, what else do you guys recommend replacing while the system is apart? Accumulator and orifice tube? How about the condenser? I see RA has a bundle with the condenser.

I forgot to add. If you have compressed air, use it to blow out the lines and coils. Put a rag over the end of the hose or coil you're blowing out. This will help remove any excess oil. Just make sure not to add too much back as you won't be able to get every last drop out of the lines and coils. Make sure to wash your condenser coil with a hose too.
All this is only if you have to replace any refrigerant system parts.

 

[ivin74]

Now to diagnose and fix this newly acquired death wobble

I have owned several NBS trucks and suvs and replacing the upper and lower control arms have fixed that issue. Alot of folks put a steering stabilizer thinking that might fix the issue and all that does is put a bandaid on the problem. Most of the time replacing the lower control fixes the issue but I always replace both.

 

[tooleyondeck]

I have owned several NBS trucks and suvs and replacing the upper and lower control arms have fixed that issue. Alot of folks put a steering stabilizer thinking that might fix the issue and all that does is put a bandaid on the problem. Most of the time replacing the lower control fixes the issue but I always replace both.

I narrowed it down to a bulge in my LF tire, swapped it to the rear and it moved the wobble to the rear end. I still may replace my shocks but the upper and lower arms look solid still. I do have a set of upper arms in the shop just in case.