Originally Posted by buckeyebrad
I bought a vacuum gauge today. WOW! That helped troubleshoot. My old solenoid (old design) may or may not have been bad, but I definately have bad wheel hubs. With the truck running and in 2wd, I pull the hose off one side and hook vacuum gauge up, i get nothing. The right side is shot. The left side i can still pull a little vacuum on, but it's not good either. If i plug one side (doesn't matter which) and put gauge on the other, it pulls full vacuum (~20"). Guess I'll start looking into changing out the IWE's. I know there is a wealth of info on here how to accomplish that. I'll start my personal debate with doing it myself and saving a few bucks, or forking out a few extra dollars and take it to the garage. Thanks to all who advised me. I really thought i still had a solenoid problem until i went and got the gauge. It really doesn't lie.
if you can do it yourself, you will save more than a few bucks. I recently had all of this done on my 2005 screw by the dealer. They replaced the IWE's, actuators on both wheels, lower ball joints while they were in thier, and it was expensive. I don't have the bill in front of my, but somewhere around 700 dollars.