Dorman 949-000 Air Suspension Compressor for Select Cadillac/Chevrolet/GMC Models

Installed on 17 tahoe fit with no issues, quality seems pretty good pump is quite and fills the shocks quickly since these are located right behind the rear wheel I'm hoping it lasts as long as original.. But it fit,it works, it's easy install.. price point compared to dealer markups are crazy. Also installed new shocks with the pump they where shot and pump was pretty loud.. Great replacement

Fit great easy to install. Works great, just 2 days so far. For our 13 Escalade esv. Note get the Rear 2 shocks also..

Just installed my new Dorman air suspension compressor on my 2005 Chevy Tahoe. I was very pleased to see the service ride control message not display when I started the truck up. I got a little worried after I didn't hear the compressor initially. Normally my old, original compressor with 120k miles, was very audible. I quickly turn my radio off and heard the faint sound of the compressor humming away. I turned the truck off and walked to the back of the truck to check the pressure in the air shock bellow and could definitely feel that it was pressurize, unlike before. So, I jumped back in the truck and started it up again. With my windows rolled down and radio off, I heard the compressor start up and turn off a few seconds later like normal. I'm really impressed with how much more quite the new compressor is. It's a night and day difference from my original unit.If I had to nit pick the replacement unit, I would like to see the wiring harness a little better protected. The main part of the harness, where the wires enter the back of the main plug, had quite a bit of exposed, insulated, wire. I added some of my own abrasion tape since the wiring harness sits right next to the frame when the compressor is mounted. That's really about the only thing that jumped out at me. Everything else was pretty spot on.Installation was super easy. The hardest part, and it's not hard at all, was getting the original remote air inlet filter disconnected from the plastic push pin up near the fuel filler nozzle inlet. Other than that, Make sure you're battery positive terminal is disconnected. Then, start with disconnecting the main wiring harness plug that's on top of the compressor, right against the frame. Then, disconnect the air line by removing the retention clip. Now, just loosen the 2 exposed 13mm bolts closest to the rear body mount and then loosen the 1 13mm bolt located inside the frame about 8-10 inches up from the first 2, you'll need a deep well 13mm socket for this. You don't have to remove the nuts completely. Just loosen up a good amount and then tap the 2 exposed nuts with a hammer to get them to release from the from the frame. Push up on the compressor housing and you'll see how the bolts/nuts are keyed into some slots in the frame. With everything disconnected, you'll be able to lift the compressor up about an inch and pull it away from the frame. Just reverse the steps for the installation of the new unit. I would also suggest you take an air compressor and blow out any debris that might have gotten into the wiring harness plug and maybe add a touch of di-electric grease to the plug to help keep moisture out. This is also a good time to inspect your air shock bellows for cracks or tears along with the air lines. If you're leaking air and causing the compressor to run a lot, you'll be replacing the compressor again sooner than you'd like.As for what cause my specific issue, it was the common C0660 error. Which relates to a malfunction or short circuit of the level control exhaust valve. I did not find any noticeable issues with the wiring on the outside of the exhaust valve. So, i'm guessing the wiring is corroded and/or broken inside the the exhaust valve like a lot of others have experienced. I did do the basic checks of the fuses located on the side of the dash and under the hood. I also tested the ALC relay located near the bottom of under hood fuse box where one of the main wiring harnesses enters the fuse box. All of that checked out good. I also jumped power across the ALC harness plug, 30 to 87, and was able to manually power on the compressor. After doing these basic checks, i knew it was time to get a professional OBD-II scan tool involved to see what the real issue was.Best of luck to any of you who are experiencing issues with your Autoride Suspensions. Take your time and diagnose as much as you can before you start replacing parts. If you're not experienced with or have access to a professional grade OBD-II scan tool, find a recommended mechanic and let them pull the codes and check all the data from the sensors. Even if you have to pay for an hours labor, it's worth it to not just throw money at a potentially easy fix.

Just purchased for my 2013 Tahoe 4-4-22. Original one was really noisy and didn't seem to work well. Thought this was a decent priced alternative and I'm glad I chose this. First off, it took me longer to figure out how to get my spare tire down than installing the compressor. Getting the old one off was easy, just 3 nuts and it comes off. Couple air lines to remove off the shock right there and the hose going up. This one had everything needed and looks to be great quality. No joke about the plug and play, fit perfect and the connector matched up. You do not remove the nuts on the new one, they go in the big holes on the frame and it slides over, then tighten them up. Took me maybe 20 minutes. I started the Tahoe up and got a little scared because I couldn't hear it working. Shut it off and started it and walked back by it this time. Working perfect, just so quiet I couldn't hear it. I just got it installed but unless it stops working, I'm 110% pleased.

It fit well and works great. The instructions helped a lot for installation and how to setup after. The fitting for the air shock was difficult to clip in but is holding fine when connected.

Works very well. Good quality and so far so good. As of November 2023.

The air compressor became and eventually gave out, quit coming on. Car became bouncy and rode very rough. This is an easy install and fix. If you have a 13mm deep socket, pliers, your good to go. Hardest part was separating the connections when taking old one out. 2015 GMC Yukon Denali XL

Fits 2016 Tahoe LTZ perfect.Easy instal !

Expensive but good quality

This product is a direct replacement for my 2010 Escalade. Super easy to install - just make sure you do not remove the nuts on the mounting bolts all the way when removing the old one or installing the new one. Lots of YouTube videos on this. Product worked right away with the new OEM air shocks I installed. Product quality is better than OEM since this new 099 product has a thermal switch that shuts itself off if it gets too hot, like if it is trying to hard to pump a worn and leaky shock. To be on the safe side, make sure that you jack up the rear of the vehicle with a floor jack, mounting it under the differential, to relieve pressure on the shocks when first filling them up. I never see anyone doing this on youtube videos, but it is cheap insurance to prevent undue wear on the shocks and compressor at first start up.Anyway, a great product. Dorman customer service was excellent.

It's a product that works but the quality on the plastic / connectors needs to be 2mm thicker. They break very easy and zip-ties had to be used to secure connections.

The fit and ease of installation was good. It started right up and performed admirably. Of course, time and repetitive performance will be the ultimate judgement.