Transfer case fuse blows constantly

[ASJT3]

Originally Posted by j cAT

so this is what I thought with some that had the loom damaged. only diff is the wires got into the exhaust. something was not put back correctly...

I would remove that front actuator and see if it is damaged or stuck.. clean it up if it looks good and see if it will work.

Yep, some previous owner didn't put the loom back into its hanger and I paid the price! I'll remove the actuator and clean it up and post back.

[ASJT3]

I took the actuator out and it was stuck open (out/engaged). I checked the voltage readings at the wire harness per alldatadiy and they seemed OK. I need to check some resistance values but I also tried to bench test the actuator with no success. I applied 12V and GND at the C and E terminals, respectively, and tried to pulse the B terminal and there was no actuator movement.

At this point I think it's the actuator, I went ahead and ordered a new one, let you all know how it goes.

Thanks,

Alex

[j cAT]

Originally Posted by ASJT3

I took the actuator out and it was stuck open (out/engaged). I checked the voltage readings at the wire harness per alldatadiy and they seemed OK. I need to check some resistance values but I also tried to bench test the actuator with no success. I applied 12V and GND at the C and E terminals, respectively, and tried to pulse the B terminal and there was no actuator movement.

At this point I think it's the actuator, I went ahead and ordered a new one, let you all know how it goes.

Thanks,

Alex

sounds good to me .. stuck in out position ...

[ASJT3]

Originally Posted by j cAT

sounds good to me .. stuck in out position ...

New actuator solved problem. Now onto the rear diff (G80, doesn't lock). I think i'm going to have it rebuilt.

[j cAT]

Originally Posted by ASJT3

New actuator solved problem. Now onto the rear diff (G80, doesn't lock). I think i'm going to have it rebuilt.

this can be from debris .. remove the cover and clean it out.. 75-90 wt synthetic gear oil.

what I have found is as the lube ages the locker does not engage quickly. see if it works with a good cleaning.. if looks good give it a try.

[ASJT3]

Originally Posted by j cAT

this can be from debris .. remove the cover and clean it out.. 75-90 wt synthetic gear oil.

what I have found is as the lube ages the locker does not engage quickly. see if it works with a good cleaning.. if looks good give it a try.

OK I'll give that a try. I suspect the clutch packs are gone or a spring is loose/broken b/c it's acting completely like an open diff, jacking up the rear I can't get the wheels to lock whatsoever.

I already order a Detroit Trutrac, so if I can't fix it I'll just pop that in.

[j cAT]

Originally Posted by ASJT3

OK I'll give that a try. I suspect the clutch packs are gone or a spring is loose/broken b/c it's acting completely like an open diff, jacking up the rear I can't get the wheels to lock whatsoever.

I already order a Detroit Trutrac, so if I can't fix it I'll just pop that in.

if you do see no damage and clean out the box good. you will not be the first guy to have it work .. with the wheel off the ground rotating one wheel will get it to lock....

as the oil ages and debris build up it will stick and not slide to lock up the both axles together.. I have found with my use when the slip causes a delayed engagement this means replace the gear oil and clean out the box... 40K miles is when I get this issue..

[ASJT3]

Originally Posted by j cAT

if you do see no damage and clean out the box good. you will not be the first guy to have it work .. with the wheel off the ground rotating one wheel will get it to lock....

as the oil ages and debris build up it will stick and not slide to lock up the both axles together.. I have found with my use when the slip causes a delayed engagement this means replace the gear oil and clean out the box... 40K miles is when I get this issue..

OK fair enough, I'll give it a try and post back!

[j cAT]

Originally Posted by ASJT3

OK fair enough, I'll give it a try and post back!

with the cover off and cleaned see if it is broken . if not it should work.