IWE failure??
Picked truck up from dealer today. They replaced both 4wd actuators in front end under warranty, said neither were holding vacuum. Drive home was problem free, tried 4hi and all.
Joined: Jun 2014
Posts: 31,757
Likes: 12,574
From: Nowhereville, Barton City Michigan
Joined: Jun 2014
Posts: 31,757
Likes: 12,574
From: Nowhereville, Barton City Michigan
It won't matter right now anyway, the hubs don't grind if ya put it 4X4!!

Ya, every cloud has a silver lining.
Go ahead and hate on me.


Originally Posted by johnday
Well , that fact about wanting to engage was obvious. Sounds like the seal is bad if in fact it is a "bad" IWE. These things only try, or do, engage from loss of vacuum. I think I'd ask about the seal, in person, and watch the looks from the mech or service writer. Somehow, somewhere, you had/have a vacuum problem.
Could be the IWE seal, cracked hose, bad solenoid valve, and my money is on the check valve.
Many dealers keep throwing on new IWE's, and don't find out what the root cause is. My dealer was guilty of that, until I showed them what the problem really was. For some reason they'd rather pay for a new IWE and labor, than the $14 valve from their own parts dept.
To be fair, the checkvalve fails intermittently, so I can see somewhat why they don't find the problem.
Do yourself a favor, and just buy one, Amazon has OEM, YG360 checkvalves for less than $10. Next time it grinds, replace the valve, a 5 minute job.
Could be the IWE seal, cracked hose, bad solenoid valve, and my money is on the check valve.

Many dealers keep throwing on new IWE's, and don't find out what the root cause is. My dealer was guilty of that, until I showed them what the problem really was. For some reason they'd rather pay for a new IWE and labor, than the $14 valve from their own parts dept.
To be fair, the checkvalve fails intermittently, so I can see somewhat why they don't find the problem.
Do yourself a favor, and just buy one, Amazon has OEM, YG360 checkvalves for less than $10. Next time it grinds, replace the valve, a 5 minute job.
Joined: Jun 2014
Posts: 31,757
Likes: 12,574
From: Nowhereville, Barton City Michigan
Originally Posted by johnday
Yes, that's the right one. Amazon will say it doesn't work, but it's the exact valve I bought over the counter at my dealer.










