03 f150 fx4 4x4
#1
03 f150 fx4 4x4
Hey fellas. I have a 2003 f150 fx4 with the electronic turn **** 4x4. It quit working last year and since winter coming I better get it fixed so hopefully someone can help. When I turn the **** it engages but on the ground it doesn't work. When I put it on jack stands and engage it it works. Can anyone help me out
#2
The way you describe it can't be because the front actuator locks the front axles together.
.
Raising off the ground makes no difference.
Better check again to see what condition you really have.
The transfer case motor engages the front drive shaft internally.
The front actuator locks up the axles.
The control actions to accomplish all this are trouble areas you need to sort out.
Either is works or it does not. There is no in between.
Good luck.
.
Raising off the ground makes no difference.
Better check again to see what condition you really have.
The transfer case motor engages the front drive shaft internally.
The front actuator locks up the axles.
The control actions to accomplish all this are trouble areas you need to sort out.
Either is works or it does not. There is no in between.
Good luck.
#4
#5
Its possible its not going all the way into 4 wheel. Mine was making a god aweful noise then I tried to use, but didn't quite make it into 4 wheel. Turned out the vacuum lines were coming loose because the hoses were cracking at the connection point. It could be as simple as replacing vacuum lines or even just making the connection better.
#6
#7
another problem might be one mine had, the shift on the fly *** isnt as reliable and safe as it claims to be, my truck has it as well and i ended up having to replace all my four wheel drive stuff because with the shift on the fly when i put it in 4 wheel didnt fully engage and since it didnt lock in properly it shredded everything trying to run. had to replace the transfer case, actuator, and my entire rear end (but the rest of the rear end was for different reasons.) shift on the fly or not i would still say come to a stop and put your truck in nuetral or park before shifting to 4 wheel.
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#9
Alright fellas I finally had time to dig into this alittle further. The vacuum lines tested out fine so i hooked my vacuum tester to the vacuum actuator and it sucked the rod in and as I left it on there for a few minutes I noticed it very slowly lost pressure. It would have took awhile to drop all the way to 0 but it was falling slowly but surely so Im thinking that the Actuator is bad. What do you all think. Should I give it a try replacing it or look into it further.
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