04 Yukon XL Denali: Replacing "ride control" compressor

[lynnbilodeau]

Guessing this has been discussed, but I am new to the board and could not find a thread on it.

Have confirmed that my ride control compressor is bad. Has power to it. Pulled it off and bench tested it. DOA.

Just wondering if anyone has first hand experience with replacement compressors. OEM is pretty expensive.

Looks like the other choices are Dorman, Arnott and Suncore.

Anyone DIY one of those? If so, how was your experience?

Thanks in advance.

 

[wjburken]

Guessing this has been discussed, but I am new to the board and could not find a thread on it.

Have confirmed that my ride control compressor is bad. Has power to it. Pulled it off and bench tested it. DOA.

Just wondering if anyone has first hand experience with replacement compressors. OEM is pretty expensive.

Looks like the other choices are Dorman, Arnott and Suncore.

Anyone DIY one of those? If so, how was your experience?

Thanks in advance.

Can’t speak to your generation of vehicle, but I’ve had good luck with Arnott and Dorman on the NNBS units.

I’d make sure you check the condition of the rear shocks since a common cause of failure is one of the shocks starts to leak and the compressor just burns itself up.

 

[adventurenali92]

I have the dorman compressor on my Z55 equipped 2006 Yukon XL Denali. Replaced the compressor I believe in 2017 and it still works perfectly. Runs at the startup of each key cycle for about 5 ish seconds as its designed and hasn’t had a problem since. Many times I’ve heard dorman parts are hit or miss especially the replacement compressor unit’s for these suspension setups but mine hasn’t given me a single problem and I’ve put tons of miles on the truck since the replacement. I’ve heard the arnott rebuilt compressors are known to have an internal part failure after some time but that part is replaceable within the unit and it’s easy to replace. I can’t remember which part. But I also can’t speak to it since i have the dorman unit. I do have arnott Z55 replacement air assist shocks on my rig though, bought from another member here I think in 2018 virtually brand new, and through all the towing and road trips and miles the arnott shocks still work perfectly. So if you decide to replace the likely no good air assist shocks in your back end spend the money once on the arnott parts and be done with it.

 

[Doubeleive]

I had a couple issue's with the arnott pumps and then went with a dorman and haven't had any issue's since
the only difference in the gmt800-gmt900 pumps is the wiring harness connector

 

[B-train]

Agreed on the pumps. I went the Arnott way a few years back on my 2007 and it failed shortly after a season or so. I went the Dorman route when they came out and that one lasted until I sold it.

 

[lynnbilodeau]

Thanks a million. Yes, the system was already NOT working when I bought this vehicle. Already accepted the fact that the rear shocks may be leaking, and am prepared to replace.

 

[Joseph Garcia]

I have a Dorman replacement compressor, and it has worked for over 2 years without any performance issues. The only issue that I have is that the Dorman compressor does not provide me with as much information as the OEM compressor does, when I hook up a Tech 2 to observe all of the working functions and display information for the compressor.

 

[lynnbilodeau]

Installed the compressor this morning. Started the vehicle and it ran for a few seconds, then shut off, which is what it should do.
Service Ride Control message is gone for now, but I really expect the rear shocks are leaking at least SOME, as they look original to the vehicle. Will wait and see.

Anyone use the Arnot reman shocks. Looks like the cheapest alternative. A little bummed that they went from lifetime warranty (as of July 1) to a two year warranty. Arnotts are $265.99 each with a $50 core + shipping at RockAuto.
Suncore offers these for a little bit less with lifetime warranty, but don't know that the ride quality will be as good.

2000-2014 GMC Yukon Rear Magnaride Active Air Shock Absorber Z55 | eBay

Suncore's typical Quick Install Strut Assembly will include: ?. Factory Specification Top Mount ?. Powder Coated Coil Spring ?. OEM Spring Mounting Plates and Seat ?. Quality Strut ?. Sport Utility. Denali Hybrid.

www.ebay.com

Alternatives?

 

[lynnbilodeau]

Also found these: Looks too good to be true at less than $100 a pair shipped. Any personal experience?

Pardon Our Interruption...

NEVER MIND. Just saw that these are passive.

 

[Devlin]

I just did mine last weekend. Did that Arnott. Works great. Took 15 minutes to do.

 

[wjburken]

Installed the compressor this morning. Started the vehicle and it ran for a few seconds, then shut off, which is what it should do.
Service Ride Control message is gone for now, but I really expect the rear shocks are leaking at least SOME, as they look original to the vehicle. Will wait and see.

Anyone use the Arnot reman shocks. Looks like the cheapest alternative. A little bummed that they went from lifetime warranty (as of July 1) to a two year warranty. Arnotts are $265.99 each with a $50 core + shipping at RockAuto.
Suncore offers these for a little bit less with lifetime warranty, but don't know that the ride quality will be as good.

2000-2014 GMC Yukon Rear Magnaride Active Air Shock Absorber Z55 | eBay

Suncore's typical Quick Install Strut Assembly will include: ?. Factory Specification Top Mount ?. Powder Coated Coil Spring ?. OEM Spring Mounting Plates and Seat ?. Quality Strut ?. Sport Utility. Denali Hybrid.

www.ebay.com

Alternatives?

I have had good luck with Arnott Remans.

 

[Doubeleive]

Installed the compressor this morning. Started the vehicle and it ran for a few seconds, then shut off, which is what it should do.
Service Ride Control message is gone for now, but I really expect the rear shocks are leaking at least SOME, as they look original to the vehicle. Will wait and see.

Anyone use the Arnot reman shocks. Looks like the cheapest alternative. A little bummed that they went from lifetime warranty (as of July 1) to a two year warranty. Arnotts are $265.99 each with a $50 core + shipping at RockAuto.
Suncore offers these for a little bit less with lifetime warranty, but don't know that the ride quality will be as good.

2000-2014 GMC Yukon Rear Magnaride Active Air Shock Absorber Z55 | eBay

Suncore's typical Quick Install Strut Assembly will include: ?. Factory Specification Top Mount ?. Powder Coated Coil Spring ?. OEM Spring Mounting Plates and Seat ?. Quality Strut ?. Sport Utility. Denali Hybrid.

www.ebay.com

Alternatives?

I have had the as-2708's on mine for over 5 years and no issue's
they now have approx 80k on them which is the point of where the oem's are known to begin having issue's, doesn't happen to all it's just a reference point. I checked mine recently and the the bladders hold air fine and everything is working properly

 

[lynnbilodeau]

thanks for the input.

 

[adventurenali92]

Don’t go cheap on the air shocks if you plan to keep the Z55 suspension. I made that mistake. Bought the cheapest ones I could find on eBay since at the time arnotts were over $700 a pair, turns out they were knock off arnotts and didn’t even last me a year. Rear shock fully extended driving in the snow when I went to turn from one street to another, and went across a huge rut in the snow that I didn’t know was there from the rain melting through the snow and then refreezing. I actually heard the shock bladder blow from inside the truck when the shock went to collapse after fully extending through the rut….. it was pretty bad.

Save yourself the hassle and go with the arnotts. They won’t die on you. The actual arnott shocks I bought from another member, have been on for at least 5 years now and many many miles and zero issues.

 

[lynnbilodeau]

Looking on RockAuto, they show the Arnott reman rears as PN AS2708.

I shopped around a bit and found them cheaper at Summit with free shipping. Same part number.

But, on Summit, when I use the "make sure it fits" button is says it does not fit.

They clearly have the self adjusting feature as required for the Z55 suspension.

Anyone order that part number from Summit? Any reason to believe they won't fit?

 

[wjburken]

Go to Arnott’s website and they will list the AS-2708’s for your 2004 Yukon. No idea why Summit says they don’t fit, but I’d trust the Arnott site.

Arnott MyCarParts

 

[lynnbilodeau]

Gonna give it a shot.