4x4 problem???
Senior Member
Joined: Apr 2012
Posts: 102
Likes: 4
From: Oklahoma
When the truck is started the front axle should not turn IF you IWE solenoid/vac lines are working correctly. When the engine is not running, the front axles should turn because there is no vaccum being applied to the IWE's. Last weekend I had to replace my IWE's because the passenger side would grind while in 2WD and would always stay engaged. The seals were shot so it would not hold vacuum therefore causing it to always be engaged or half engaged causing the grinding sound in 2WD.
I must be confused? Isn't that what I stated in my post? When the truck engine is running it creates vac to pull the hub back to stay in 2WD, then if you select 4WD it releases the vac to engage the hub...
With the truck started and vac pulling, the half shaft should not turn, just the wheel should turn. If the vac is not pulling then the half shaft will turn because the hub is still engaged.
Ford Tech
Joined: Aug 2011
Posts: 307
Likes: 13
From: Indiana/Michigan
When replacing a IWE you must do a wheel bearing as well! If you don't it will never be right! That's if it is the IWE! Check the splines of the shaft to make sure they are all smooth and not chopped up or sharp edges! If it does replace it to save future repairs! Just did my IWEs and wheel bearings today as well as new tires and front breaks! Took me about 3 hours at work! But do both IWEs and wheel bearing at the same time! One new will make other weak
Thread Starter
Senior Member
Joined: Jul 2012
Posts: 611
Likes: 19
If the IWE accuator it the thing that connects to the cv shaft
The cv shaft and the IWE accuator are connected its just what the IWE goes into isn't connecting does that help with telling yall any thing
The cv shaft and the IWE accuator are connected its just what the IWE goes into isn't connecting does that help with telling yall any thing
