I have read up on the common problems associated with the IWEs.. unfortunately I’m at the point where I don’t know what to do next..
I have been having problems with the IWE’s partially engaging for some time now.. (several months).. some times i will get the humming/grinding while just running around in 2wd.. other times it gives me grief when returning from 4wd to 2wd.. at which point I will have to go back into 4wd to 2wd (sometimes several times before the noise will disappear).. truck is still under warranty and the dealership has been trying to fix the problem.. TSB 18-2273 was performed, actuators/hubs, check valve all replaced.. that didn’t fix the problem, it went back to the dealership, they found a slow leak in check valve, replaced it again. Truck still experiencing these problems.. it’s been in and out a few times to the dealership, sometimes it comes back and they say everything checked out fine, even though I have taken techs out with me for test drives and they have heard it themselves.. most recently, truck stayed in shop for a couple days, they replaced the solenoid, and thought they had a fix.. I drove the truck back and all seemed fine, even when engaging 4wd and going back to 2wd it was smooth. Later that day the problem came back yet again... anyone had this much of a headache with the IWE’s? While the problem is intermittent, when it acts up, it can take quite a while sometimes to get back into 2wd without any issues.. I would think if there was a leak in the line the problem would be much more consistent? Any ideas of what else to look into?
Thanks in advance.
I have been having problems with the IWE’s partially engaging for some time now.. (several months).. some times i will get the humming/grinding while just running around in 2wd.. other times it gives me grief when returning from 4wd to 2wd.. at which point I will have to go back into 4wd to 2wd (sometimes several times before the noise will disappear).. truck is still under warranty and the dealership has been trying to fix the problem.. TSB 18-2273 was performed, actuators/hubs, check valve all replaced.. that didn’t fix the problem, it went back to the dealership, they found a slow leak in check valve, replaced it again. Truck still experiencing these problems.. it’s been in and out a few times to the dealership, sometimes it comes back and they say everything checked out fine, even though I have taken techs out with me for test drives and they have heard it themselves.. most recently, truck stayed in shop for a couple days, they replaced the solenoid, and thought they had a fix.. I drove the truck back and all seemed fine, even when engaging 4wd and going back to 2wd it was smooth. Later that day the problem came back yet again... anyone had this much of a headache with the IWE’s? While the problem is intermittent, when it acts up, it can take quite a while sometimes to get back into 2wd without any issues.. I would think if there was a leak in the line the problem would be much more consistent? Any ideas of what else to look into?
Thanks in advance.
