4x4 high light flashing

[3500ctd]

I Just picked up a 2002 explorer and the 4x4 high light flashes randomly in 4x4 auto. Everything else seems to work fine when I engage the 4x4 in high, Just have the light flashing in auto. Any ideas?

 

[marcher423]

fyi

check the wires at the transfer case make sure all are connected and in good shape the grounds are known to give trouble

 

[Am3gross]

How many times does it flash? Here is why I ask...

I too just bought my x and before I picked it up I had the dealership put brand new tires on it... I drove it very little until the first Saturday that I had it... Took it out on the high way.. My light started to flash, it would flash 8 times then go off for about a minute... Did that the entire 25 mile trip... On the way back it did not do it at all... I believe my issue was the new tires and the x learning that it had new shoes put on her.. Has not done it since and my tires have about 600 miles on them. During my research of the issue I found that not only is the ground wire a culprit of this issue, but tires make a difference s well.. Wether it is different sizes or even different brands of tires, and even the wear between the tires that can make it flash...

Hope this helps,

 

[cbbubby]

that is true , i had a flat one day and my tires were pretty wore out but spare was new. at 45mph my 2003 xlt would start shifting in and out of 4wd. at first i didnt know what was happening but i finally figured out that it started when i put that tire on. got 4 new tires and hasn't done it since.

 

[Campnham]

I had the same issues this past August. I installed a new ground, didn't help. I did the brown wire mod, still didn't help (liked the mod). Turns out there was grease on my right front sensor (hub bearing shot). Replaced hub & sensor assy, problem went away. my sensors were a pain to get out.
Hope this helped.

 

[3500ctd]

Well I ended up selling the Exploerer. There was a few other things I didnt like about it and thought I would just cut my losses. Never did fix the flashing light.