If you just want to test to see if it is the sensors or not, there is a plug connector on the passenger side of the rear drive shaft that you can disconnect. a light will come on to tell you there is a problem. The guy at the Ford dealer crawled under the drivers side and reached accross to the passenger side to disconnect this plug. He then took me for a short ride and no noise. We brought it back and he plugged it back in abn the noise is there again. If you have switches on the panel that say Auto 4x4 and 4x4 Hi, you have all wheel drive and the option of manual 4 wheel drive. My Ranger does not have this. My Ranger also has a passenger side door lock. Both are 2010 vehicles. Kind of pi$$es$ me off. The Explorer is the wifes and she had to have certain things on it. Took a while to find it, but we did. We were Suburban drivers prior to this and she wanted to downsize and get away from Chevy/GMC. We're happy with the explorer, just not this issue.

 

http://api.viglink.com/api/click?for...20encyclopediaOK guys...thanks for all the replies..a few things..took pics of dash & the orig sticker from window...tried to upload them here but can't remember how to do that...Anywho..sticker says I have "Control Trac 4x4 System" and 4x4 Independent Suspension...dash push buttons show ...4x4 Auto..4x4 High..4x4 Low...Wikpedia says Control Trac is this..
ControlTrac - Wikipedia, the free encyclopedia ControlTrac - Wikipedia, the free encyclopedia Too much to enter here...check out the link above...
Had 2 new tires installed yesterday..all 4 are BF Goodrich Long Trail T/A..P238/65/r/18
Driving home car rode good but don't know if I was riding gun shy or feeling road but a few times I thought I felt it but not strong & for the most part 95 % of ride was great...
spoke to tranny guy on phone & he said should be OK & when I get home to NJ to have transfer fluid changed as there is a clutch in there & needs to have clean fluid.
At this point I am hoping to gear up for next week to travel home & hope for the best.
Thanks
Eddie
Here is another link that I found...
All Wheel Drive Explained | awd cars, 4x4 vehicles, 4wd trucks, 4motion, quattro, xDrive, SH-AWD, Haldex, Torsen, wiki - How it works
http://api.viglink.com/api/click?for...0-%20How%20...

 

The Auto 4x4 is supposed to be 2 wheel drive and then the 4 whell kicks in when it is needed. This is determined by the wheel sensors and the computer. For used to have a slogan for traction control grip when you slip. The auto 4x4 is basically 4 wheel drive traction control. My explorer was under warrenty and they would not change the wheel sensors because they said it was the circumference of the tires. I told them that was crap and they should replace the sensors if they are that sensitive. I lost. Now it's not under warranty.

 

Well I am going to drive home to NJ this week & hope I don't have any problems & when I get it home am going to take to mechanic I have been working with over phone...Rich from 2Rs auto in Forked River NJ...I have complete confidence in him & partner Ray....I will get back to you guys about what they tell me....thanks for all the help...advice...etc.
Oh as far as warranty ...it is a 2008...now 2014..5 years is over & 60K Warranty...I have 68K....SOL for me !
Eddie