AWD Issue PLEASE HELP ME!

[jdlowe]

I am hving an issue with the AWD on my 1999 Explorer Eddie Bauer. For some reason, when it switches into 4wd-hi, it goes into a "neutral" position where the transmission turns but no power gets to the wheels, my only recourse when this happens is to put it into 4LO which will still work, when i try to put it back into 4HI or Auto it just makes a slight grinding noise, only 4LO will move the truck. I also just replaced my shift motor becuase this happened recently and I thought that was the problem, but I guess it isn't. It almost seems that the shift motor is over or under-shooting the position it needs to go into, PLEASE HELP ME!! thanks everyone.

 

[jdlowe]

Just wondering, am I doing something wrong? I am having a hard time getting any help on this one......

 

[SoNic67]

You don't have an AWD, you have a 4x4. AWD don't have any switches for 4x4, they are "on" all the time.

 

[jdlowe]

why is it that your vehicle spec reads awd as well?

 

[koda2000]

why is it that your vehicle spec reads awd as well?

because his is a V8. all V8's are AWD (or RWD). all V6's are 4WD (or RWD). there are no dash switches on AWD's for 4WD HI/LO. AWD's are full time with normally 65% power going to the rear wheels and 35% going to the front wheels. the transfer case uses a viscous coupling to connect the front and rear wheels.

 

[Turdle]

Are there any other symptoms, or warning lights being displayed? ABS light? Check engine light? OD off light flashing?

 

[delexploder]

Two plastic guides on the transfer cases shift fork go bad and allow it to **** a little this lets the other end of the fork to skip or fall out of the cam that actuates it. When mine did it it would move just enough that I would loose reverse. It depends on how screwed up the parts are as to what it dose.

 

[jdlowe]

because his is a V8. all V8's are AWD (or RWD). all V6's are 4WD (or RWD). there are no dash switches on AWD's for 4WD HI/LO. AWD's are full time with normally 65% power going to the rear wheels and 35% going to the front wheels. the transfer case uses a viscous coupling to connect the front and rear wheels.[/QOh, okay, thank you for clarifying that for me, I was incorrect, I didn't realize that option was offerred as well.

 

[jdlowe]

Are there any other symptoms, or warning lights being displayed? ABS light? Check engine light? OD off light flashing?

I have a check engine light becuase of a bad O2 sensor. When I drive in 4LO at above 20KM/h, the OD light off light flashes..

 

[jdlowe]

Two plastic guides on the transfer cases shift fork go bad and allow it to **** a little this lets the other end of the fork to skip or fall out of the cam that actuates it. When mine did it it would move just enough that I would loose reverse. It depends on how screwed up the parts are as to what it dose.

That sounds like it could be a possible cause, I hope not becuase that would likely require a rebuild of the T-Case :S