My New 2019

[AH64ID]

Read the third page he posted. "The air suspension system is a closed system."

It also says the compressor will recharge the reservoir from atmosphere, which is what mine most certainly does.

I think FCA is misusing the term closed system on page 3, as it is not closed the way we are all used to closed being.

It appears to work like a really fancy aftermarket setup. Compress air, store air, and move it in/out of the bags as required.

The reason nitrogen is required for the initial/maintenance fill is that allegedly the compressor will set a code if it has to run long enough to fill the system from 0 psi.

 

[RVTRKN]

That error message is from the compressor overheating, per the tech.

 

[SnoKing]

Wrong thread.

 

[TFucili]

Yet, my Viair is 100% duty cycle...

 

[TCDiesel]

Wrong thread.

I was WTH....I was trying to figure out the connection...Its good to know their was None....

 

[TFucili]

I was WTH....I was trying to figure out the connection...Its good to know their was None....

Which connection are you trying to make?

 

[SnoKing]

I put a post here rather than on this thread! https://www.turbodieselregister.com/threads/batteries.267890/page-3

 

[Wayne M.]

Yes it does, but only if your compressing it. I deal with air controled pneumatic's on a daily basis, and that is why I wouldn't think they'd compress air, then exhaust it, for an OEM setup.

The Lincoln Mark VII and Continental of the ‘80’s used a 4 air spring system that used compressed air and a problematic filter/dryer element. I remember the switch in the trunk to flip before putting it in a lift.

 

[AH64ID]

Yet, my Viair is 100% duty cycle...

My old one was, and new one isn’t. Even taking all 4 tires from 40/25 to 55/55 won’t exceed the duty rating. The pump is smaller and faster, and draws more power.

 

[Cummins12V98]

Read the third page he posted. "The air suspension system is a closed system."

it sure is.

 

[Cummins12V98]

I was hoping to add an air horns to mine but was told it’s not possible.

 

[AH64ID]

it sure is.

Is your 15 a closed system? They are certainly not in 17-18.

 

[AH64ID]

That error message is from the compressor overheating, per the tech.

I guess that would make sense.

Have you heard your ‘19 purge the system at startup? It does it every time on mine, another reason I know it’s not a closed system.

 

[dieselshadow]

I’ve never heard my ‘18 purge or make any sound. Nothing.

 

[Cummins12V98]

Is your 15 a closed system? They are certainly not in 17-18.

The air compressor does not use outside air. It can’t BLOW.

 

[AH64ID]

I’ve never heard my ‘18 purge or make any sound. Nothing.

Have you tried listening with the passenger windows down at low speed just after a start and moving?

It’s very distinct on dads 17 and my 18...in fact in the passenger seat on dads 17 I am surprised how much louder it is than from the drivers seat on my 18.

The air compressor does not use outside air. It can’t BLOW.

So you don’t have a air intake for the compressor between your cab and bed on the passenger side?

We already know the spring configuration changed sometime between 15 and 17, who knows what else changed.

 

[Wayne M.]

I cannot believe we, in all of TDR land, do not have one tech on board, in the trenches today, who’s willing to chat about this stuff.
Have any of you bought the service information disc from the Mopar website? I have it for my 14 Durango, and while it’s not a complete manual, it’s better than nothing.
I bet it’ll explain the system and components in some detail.

 

[Wayne M.]

If that were the case, if the tank was split with a diaphragm, there would be 2 lines going to the tank. I only see one in the diagram.

I thought about this post and I have to revise it.
Some industrial hydraulic systems use an accumulator to supply emergency pressure for brake systems and such. There would only be one line to the tank, but the other end of the tank would have a charge/ test port to check the other side of the diaphragm which is usually nitrogen charged. But in these machines, an accumulator is just supplying a reserve head pressure in case the engine quits, for braking. What we’re calling a compressor could just be moving/ modulating air back and forth from the tank to the springs.

 

[dieselshadow]

Have you tried listening with the passenger windows down at low speed just after a start and moving?

It’s very distinct on dads 17 and my 18...in fact in the passenger seat on dads 17 I am surprised how much louder it is than from the drivers seat on my 18.

I have. We’ve discussed this before and I’ve listened for it because of your description. I’ve still never heard it.

 

[TCDiesel]

Wayne and Others.. I have been contacted NOT to Post Diagrams or any type of the possibility of posting protected info....I break this rule from time to time.. Like I did in the DEF Thread.. but not this one...So I hope members and readers need to understand that professional's honorable People don't leak info that's protected.. I never want to be like The X people in America that have no standards.