electric 4x4 NOT WORKING
#16
Front diff. vacuum actuator link
Originally Posted by bullseye670
At the dealer. About 145 bucks. They call it a motor. Its under a small plastic black cover on the front diff. Pull the 2 small 'c' clips on the rod to remove. You can check it with a vaccumm pump, most auto stores sell one for about 20 bucks. Ussually comes as a brake bleeding tool.
Applying to one side inguages the other disinguages.
Applying to one side inguages the other disinguages.
My 2001 needs an actuator at the front differential also (moves only a slow 1/16" and tested with actron vac. pump on both lines.). Loads of WD40 hasn't helped.
The actuator has a slot in the rod that moves in & out, where it aligns with the arm (link) to the differential. Do I carefully pry the arm from the actuator slot before pulling the actuator? This link is what actually moves bi-directional and engages the differential.
I've been thinking of the 4x4 Pozi-Lok as a replacement to the vacuum system. Havn't found many reviews. Comments appreciated.
Thanks
#17
You can pry the arm out of the vacumn actuator. Using wd doesnt work. Use a good penetrating fluid and slowly work it back and forth. In the cold and snowy area that i was from,that is a very common problem with the front diff. the other thing with the auto 4x4 is the shift motor. they do wear out after a while and stop working. Unfortunatly,they are expensive to replace.
#18
#19
4x4 electric more info
checked fuses they are okay and getting voltage.
jacked up front in and engaged 4x4 and wheels turned but front differential not engaged. checked that and the actuator moves fines. engaged it by reversing vacuum lines. and released once switched back.
checked motor connection seemed to be okay no major corrosion. outside of motor rusty as hell. beat motor with rubber hammer. still nothing.
any other suggestion or shoot the truck.
jacked up front in and engaged 4x4 and wheels turned but front differential not engaged. checked that and the actuator moves fines. engaged it by reversing vacuum lines. and released once switched back.
checked motor connection seemed to be okay no major corrosion. outside of motor rusty as hell. beat motor with rubber hammer. still nothing.
any other suggestion or shoot the truck.
#20
Originally Posted by rather_b_fishn
checked fuses they are okay and getting voltage.
jacked up front in and engaged 4x4 and wheels turned but front differential not engaged. checked that and the actuator moves fines. engaged it by reversing vacuum lines. and released once switched back.
checked motor connection seemed to be okay no major corrosion. outside of motor rusty as hell. beat motor with rubber hammer. still nothing.
any other suggestion or shoot the truck.
jacked up front in and engaged 4x4 and wheels turned but front differential not engaged. checked that and the actuator moves fines. engaged it by reversing vacuum lines. and released once switched back.
checked motor connection seemed to be okay no major corrosion. outside of motor rusty as hell. beat motor with rubber hammer. still nothing.
any other suggestion or shoot the truck.
#21
#24
2003 4X4 front axle engagement failure
Just bought this truck. It was only engaging the front occasionally, then kicking out. Everything worked to and including the engagement motor on the axle. Disassembled and found no pins on the shift fork-aluminum tailings found when oil drained. Ford's out of forks-dealer only item. Phony aluminum pins don't cut-it. Ford is supposed to be producing a new replacement to be out in Feb. '07. I can't believe there's no TSB on this. Dealer here said there's a hundred 4X4's running 2X2 'til the new part shows up, that they know of. Anybody got a line on aftermarket fork, or tried and proven pin replacement mods for the OEM fork?------------It's snowwwwwwwing!!!!