I dont know if this is the right forum, but I get a grinding noise while my truck is in 2WD. When I put it in 4WD I heard a little thud and the grinding stops. I have already replaced the IWE Solenoid and now the problem is worse. Any ideas?

My truck is a 2006 F150 King Ranch

 

It is probably your 4wd actuators..the teeth that are used to engage the CV shaft may have ground down and cant catch when you flip the 4x4 switch to release the vacuum pressure. You can also check your vacuum lines for moisture. The actuators are 80 bucks apiece from Rock Auto. I might have to change mine as well but for now i just checked my lines and switched to the new solenoid with the cover.

 

Yupp i got one for my 04 fx4. But i havent put it on yet lol. And if you need to drive it for 500 miles or so. Than you can unplug the silonoid and leave the vac lines hooked up. That makes the trans case remain in 2wd and the hubs be locked in like a awd. They just wont spend.

 

worked on mine this morning, found the line on passenger side melted

 

Trouble shooting;

http://www.ford-trucks.com/forums/836438-everything-you-wanted-to-know-about-the-iwe-system-and-then-some.html

IWE replacement;

http://www.f150online.com/forums/2004-2008-f-150/360269-iwes-removal-replacing.html

Not difficult at all.

 

Sweet I'll give this a shot. I tried to take it out and now it grinds in both 4 and 2 WD. If it is just grinding on he front right do I just have to replace one?

 

Sometimes but i would just do both as in a month you may hear it again and the other side might have caused it to fail again. I know of a couple guys on the other forum who have changed 1 side, and then a week later bring it back to have the other side changed. I would just be safe and change both that way you dont have to worry about it in the future. (hopefully).

 

Is it something that I can change myself or do I need to take it in?

 

Im going to change mine myself

 

Yeah i would do it yourself and save the 500 bucks...All you gotta do is take off the tire, undo tie rod, undo upper control arm, I think take off the caliper( just hang it out of the way) and then undo the CV shaft nut on the outer hub. This will allow you to slide out the CV shaft on the inner side of the knuckle. Then undo the 3 bolts that hold in the actuator and replace!

Obviously that is a vast overview of the process but if you have the sockets/wrenches/jack it is well worth the effort and money savings. I should have done this when i installed my lift in May...would have been a ton easier but oh well.