Diagnosing GX470 Air Suspension and Fixes

[@thedrooch429]

Ok, I tried literally everything in this video multiple times and nothing improved the problem of unforgiving rear suspension. I couldn't get the air lines disconnected. However, I JUST got them removed last night, did the OBD2 paperclip trick, drove it around the block a few times, then went to bed. The drive home from work today was probably the smoothest my GX has ever ridden since I've owned it. THANK YOU!!!!!

[@HawkeyeSkunkWorks]

Glad I could help

[@2ChaseElk]

Thank you!reset worked

[@HawkeyeSkunkWorks]

Glad I could help

[@maxgough171]

Wow!! It’s been riding a little rough since I bought it two years ago so I’ve never touched the ride adjustment…until yesterday. I didn’t hear the compressor and no measurable height difference with a measuring tape. But when I started driving all hell, broke loose! Meaning, the backend bounced violently up and down with even the slightest angulation in the road. I just watched video and I’m glad I hung till the end ; the resets didn’t work but when I crawled underneath, the right side adjuster rod wasn’t attached to the upper control arm! I popped a nut on and BAM, I was back in business! Thanks man!! Huge win!

[@HawkeyeSkunkWorks]

Nice, glad I could help

[@blaineprickett8045]

Perfect timing. Ab 6 mos ago my air suspension stopped working for an afternoon but came back on. Last weekend it went out for a day and came back on. The past two days it hasn’t been functioning. Buttons don’t work. I don’t hear the compressor at all. I’ve pulled fuses and relay. Now I’m sitting in the car with suspension off hoping for a reset. 🤞

[@blaineprickett8045]

Side note: I too have a 3rd gen 4Runner 😄 she’s lifted on 33s with a sleeping platform in the back. They make a great pair

[@officerunner]

I had this problem a few times, but your video helps me reset my air suspension. Especially the one with the wire and pumping up the brake.

[@HawkeyeSkunkWorks]

glad i could help

[@hoss1988]

RIght on! I've been trying to figure out my air suspension, not as smooth as I would expect. I replaced shocks with OEM, Air bags as they were leaking, and all suspension bushings, R drive shaft, axels, brakes, tires... The ride is smooth but I dunno I have a shimmy on small bumps. Maybe body mounts... Seems like my 2002 Tundra on Belistiens rides better. Thanks for the rundown! I'll try the rest.

[@HawkeyeSkunkWorks]

Steering rack bushings. I went with White Line

[@pinheadlarry37]

By shimmy do you mean like a quick side to side shake? I think I have the same thing whenever I go over a speedbump/pot hole at parking lots speeds.

[@HawkeyeSkunkWorks]

@@pinheadlarry37 more like a tire thats not balanced, which I think was the problem because EVENTUALLY it stopped doing it.

[@hoss1988]

Thanks for the info! I did the Steering Rack bushings, and its tracks way better! Still have a shake on bumps. I dunno... Tires are fresh and balanced, I'm going to adjust the height sensors. One side is .5 inches lower then the other.

[@hoss1988]

​@@pinheadlarry37 Well more like at speed... do your left and right rear wheel well measure the same height? Maybe ones sides lower than the other Thanks!

[@billyf1001]

It was the ECU wire hack that did the trick. I also tried your ignition "On-wait-10-minute" suggestion prior to the wire hack. Thank you for posting this video.

[@HawkeyeSkunkWorks]

glad I could help

[@Kypreparedness]

I’d personally replace it with standard suspension from somebody like dobinson or OME. Not worth the headache and glad our 2008 4R didn’t come with the XREAS or KDSS.

[@HawkeyeSkunkWorks]

I have all the parts if I wanted to but I really like it, works great with the camper, travel with the family and all our crap in the back, rides fine.

[@Bimmerrx7]

Nice info. What MagSafe chargers are you using?

[@HawkeyeSkunkWorks]

IDK some from amazon, theyre not great.

[@mrfixit0067]

I am going absolutely crazy troubleshooting the air suspension problem on a gx 470. Seemed to start at the same time as a brake problem on the rear driver side and can't ignore the fact that it may be related somehow.

[@HawkeyeSkunkWorks]

Got me stumped

[@ovrlxnd]

I'm having some issues after a weekend of wheeling. Maxing the ride height does cause the compressor to kick on and raise the truck, so I know it works and the air bags hold. But the N height is so low it's bouncy. Think I smacked a height sensor out of alignment?

[@HawkeyeSkunkWorks]

Definitely sounds like a sensor issue of some sort.