M923A1 air pressure issue

[jd 9760]

I search some old threads on this issue and I think my problem is related to the air drier. I have air seeping out the bottom of the drier and the truck will not build any air pressure. It has acted up in the past and i was able to rap on the drier assemble and it would close up and work. That is no longer helping and i have now managed to crack the plastic cup on the bottom of the drier. My question is what parts do I need and where can I find them? I have not taken it apart and I can't find pictures of it in the TM's so I'm not sure yet what I'm looking at. Is there a valve in there that is tied up? I see a parts listing for Drier rebuild kit, is that what is needed? Any help would be appreciated. Thank you!


I think the biggest problem is my truck never gets driven. Only put about 30 miles on it last year. Its in great shape but sits a lot.

 

[98G]

Expello valve is stuck.

Dryer rebuild kit, or just put an MRAP air dryer on it.

And you're exactly right as to the cause. Sitting is harder on them than hard use.

 

[jd 9760]

Thanks 98G! Is an MRAP dryer had to come by?

 

[simp5782]

Member ZiggyO has them or member Suprman (will@pawnking.com) it is easier to email him.

Blow off rebuild kit is in the parts spreadsheet sticky. Haldex # DA33115 is the lower rebuild kit. That little cup is just a dirt blocker.Take it off. Remove the snap ring and pull the valve out. More than likely the Oring will be warped.