REBEL - Air Ride, one corner sagging

[Intense-Dakota]

Ever since I purchased my 2017 REBEL, after sitting for a few days, the drivers side rear would always sink down about 1 inch. It was never a big deal, until it started getting cold. Today, after sitting for 2 days in <10 degrees the rear left was sitting on the bump-stop (see pic). Since this is a sealed system, and I never had issues with the system running out of air, I would venture to think that this is a check-valve issue and not a air bag or line leaking issue. I have an appointment on Thursday to take it in, but wanted to see if there was any prior experience with this issue. Also, the left rear shock is considerably software than the right rear, so I am going to guess that is because the air bag has been running much less pressure on a regular basis. I still need to replace the shock, but dont want to spend $300 for one stock shock, so I am still researching to replace with aftermarket.

 

[Brandon-w]

This is a very very common problem with these trucks. Some people have gone as far as taking out the air system out and putting springs back in. In the cold they say the system freezes up but that does alot of good for people who live in the cold. I can name 5 people who deleted their system after multiple dealer trips. Poorly designed system I think..

 

[Intense-Dakota]

This is a very very common problem with these trucks. Some people have gone as far as taking out the air system out and putting springs back in. In the cold they say the system freezes up but that does alot of good for people who live in the cold. I can name 5 people who deleted their system after multiple dealer trips. Poorly designed system I think..

This has nothing to do with the air system freezing up. In 2017 they replaced most of the plastic fittings and "air" in the systems and started using nitrogen which stopped most of the issues on the early 2016 models. I worked with at two locations for a VERY large company in central illinois. I know 20+ people that have air ride RAMs ranging from late '16 to '20, and none of them have ever had issues with air ride. I also have never had issues with the cold, even last year when the truck saw -20 temps.

The air suspension works perfectly fine, but one corner sags which is different than the system freezing.

 

[Brandon-w]

Alright...

 

[Brandon-w]

https://www.ramrebelforum.com/forum...pension-frozen-extreme-cold.html#/topics/9513

https://www.ramrebel.org/threads/problem-with-air-suspension.13377/

https://www.ram1500diesel.com/threads/air-suspension-problems.63614/

https://www.ramforum.com/threads/air-suspension-and-cold-weather.113638/

 

[Intense-Dakota]

https://www.ramrebelforum.com/forum...pension-frozen-extreme-cold.html#/topics/9513

https://www.ramrebel.org/threads/problem-with-air-suspension.13377/

https://www.ram1500diesel.com/threads/air-suspension-problems.63614/

https://www.ramforum.com/threads/air-suspension-and-cold-weather.113638/

Are you just trolling this? How many of those posts that you just posted have ANYTHING to do with ONE air-bag going down? Or are they all related to freezing? If you read my post, and don't just jump on the "ITS TOO COLD FOR AIR BAGS" or "BAD DESIGN" band wagon, you will see this has ALWAYS happened. It is NOTHING to do with being cold. The only thing the cold MIGHT have had to do with it is that is went down ON THAT ONE CORNER faster. The system is not frozen. The system works fine. The system goes up and down without issue.

 

[Brandon-w]

Ok don't get angry I'm not trolling. Each bag has an individual valve no? It's cold, one valve has condensation in it causing it to...... So the others hold and that one doesn't so either you have a sensor or a valve gone...
Park it somewhere warm and see what happens. It's such a conmon problem why would you ever rule it out. Even nitrogen trucks are having the freezing issues, people are spending $1000s to fix it because they also don't Beleive its freezing.

 

[usaf2006]

On my 2017, both front bags check valves went bad at the same time, and the front was in eco mode with the rear in off road mode. Dealer fixed it but had no explanation after having the truck for 4 weeks. I'm swapping for regular suspension at the next sign on problems.

 

[Intense-Dakota]

Park it somewhere warm and see what happens. It's such a conmon problem why would you ever rule it out.

This has been happening for a YEAR now. All year, including summer. When it's hot.. Not cold. HOT. Like 100+ degrees hot.

I know how the system works. I am trying to find out if others have had THIS problem. Not a freezing problem. A problem with ONE airbag going down when hot or cold. Every post I find is about about the system freezing or the entire front or rear going down. Not just one corner.

 

[Intense-Dakota]

On my 2017, both front bags check valves went bad at the same time, and the front was in eco mode with the rear in off road mode. Dealer fixed it but had no explanation after having the truck for 4 weeks. I'm swapping for regular suspension at the next sign on problems.

Yeah, that is the most common thing I have seen. Where it is one entire end of the vehicle, but I can't find anything where it is just one corner. After starting the truck, it will re-level without issue.

 

[89grand]

If you think the system is fine, and is working as it is supposed to, even though it clearly isn't or it wouldn't be sagging in the corner, then I'm not sure what you want to know from anyone.

 

[usaf2006]

Yeah, that is the most common thing I have seen. Where it is one entire end of the vehicle, but I can't find anything where it is just one corner. After starting the truck, it will re-level without issue.

Ive read this issue a lot on rebel specific forums.

 

[Intense-Dakota]

If you think the system is fine, and is working as it is supposed to, even though it clearly isn't or it wouldn't be sagging in the corner, then I'm not sure what you want to know from anyone.

Lots of trolls today... but thats ok. I like to see trolls come out and get exercise. My point is that the system is NOT frozen. It goes up and down and levels perfectly fine. It sags after sitting for a day.

 

[Intense-Dakota]

After some research, it looks like this might be the culprit. Each corner has it's own valve, but the valves are all in one block it appears. My guess, is that this block will need to be replaced (I have bumper-to-bumper warranty till about 120K miles) as only one of the valves is leaking, but it is leaking back into the air ride reservoir.

68204398AA - Compressor Valve Block

 

[Tach_tech]

The compressor,valve block, and leaking rear bags are by far the most common issues. Especially once it gets cold.

We just finished a 2 week stint of -20 to -35C. Pretty much every day we had at least 1 truck coming in with air ride issues. There have been updates to the compressors and valve blocks to help prevent any moisture and freezing but it still happens, not as much though. They’ve always used nitrogen though, never just air.

That being said, your most likely causes are the valve block or maybe the ASCM( Air Suspension Control Module).

If you want to prevent the sagging, just put the truck in the lowest mode every time you park it. Leaving it in entry/exit mode also seems to help with issues in the winter, since the truck won’t try to auto level by itself after it’s shut off. They’ll all sag a little over time but shouldn’t that much.

 

[BWL]

I recently had a few extra cold days. As low as -40 and the truck lowered overnight and it would not adjust. Once it warmed to about -25 it worked fine again. I suspect the 1 bag is leaking or 1 valve is frozen though and that looks like more tgan an inch difference. Hopefully the valve as that means it's still mostly nitrogen still. When it's cold the compressor has a harder time pumping so although it may level out it could take a lot longer than normal. That said if you know the bag is faulty know that when you replace it the system will need purging with nitrogen and the system will draw in air to make up for lost nitrogen in case of a leak. This means moisture in the system and cold weather problems.

 

[Intense-Dakota]

It's all under warranty, so I'm not worried about what needs to be replaced. If it starts to have issues after the replacement, it's still under warranty for about 3 more years and nearly 50K more miles.

 

[Tach_tech]

It's all under warranty, so I'm not worried about what needs to be replaced. If it starts to have issues after the replacement, it's still under warranty for about 3 more years and nearly 50K more miles.

Well you won’t know for sure if it’s covered till it’s diagnosed and depending exactly what your warranty all covers. Air suspension components are usually only covered under basic warranty. It sounds like You’ve got a longer than normal extended warranty so most likely should be covered.

 

[Intense-Dakota]

I have a premium bumper to bumper ND includes everything on the suspension except the rear shocks.

 

[dmt98239.dt]

Had to replace the front ride height sensors on my 2013 Ram Sport - they are plastic. Cold weather affects my air suspension - in the winter I leave it in normal height.....had 1 day when it was below freezing and it would not raise from Entry/Exit mode. But that affected the whole system not just one side.

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