2005 super duty Harley addition 4x4 problem

[ButtNuttN8]

So I live up in maine and we just got our first dusting of snow for the season and i went to put my truck in 4x4 and the light on the dash lights up but it deft not in 4x4. The hubs are auto lockers so i switched them to lock instead of auto and the same thing nothing. But i did hear a clanking rattling noise sounding like it was comming from the driver side wheel. What could be causing it to not lock in 4x4? is the hub bad? what should I look for iv never had a truck with switch for 4x4 or auto hubs.

Also I cant change the location of the heater it always blows defrost so i cant change it to vent or floor or any of that only blows out defrost towards window. Is the 4x4 switch vacum activated? if so i could have a vacum leak not allowing me to change that as well as not hookin 4x4.


any advice would be great it sure sucks driving in 2 wheel drive thanks

[fordfan30]

sounds like you do have a vacuum leak and they are related but I dont know where to tell you to start looking for it.

[Snake]

Dumb question (maybe), but when you manually locked the hubs, did you also rotate the ESOF dial to 4Hi? If you leave it in 2wd, you won't have 4x4.

Agree with the above about the vacuum leak.

[ButtNuttN8]

yup all i hear is a nasty clicking noise when i turn to 2wd noise goes away turn to 4wd clang clack so im thinkging my hub might be blown

[Blackcloud413]

Did you ever figure out the problem?

[ButtNuttN8]

oh yeah I found out the problem

the gears where stripped right out and junk

[Blackcloud413]

Damn, Mine is doing the same thing.

[ButtNuttN8]

yeah not good because only get them from Ford they dont make em aftermarket

[juzatheman]

Originally Posted by ButtNuttN8

oh yeah I found out the problem

the gears where stripped right out and junk

"Well there's the problem"..

Sent from AutoGuide.com Free App

[Blackcloud413]

did you get away with just replacing hubs, or did you do axle shafts too?