Odd 4wd issue searched and still need help
- Thread starter Quadsbc
- Start date
It gets better, tonight I removed my front diff actuator. I kept both vacuum lines and diff switch connected. I manually moved the fork back and forth, it was difficult at first but loosened up. Started the truck and shifted in and out of 4wd, it actuated as it should. So I know the vacuum side works along with the diff actuator and switch.
I stuck my hand inside the diff and manually moved the locking collar. I believe shifting the diff open and closed. I buttoned everything up, no leaks. But I still believe it is not in 4wd. I can't notice a change in steering and when the front end is jacked up, I can only manually spin one tire. Now I'm quite tired and my brain does not want to fully operate for me, but with both front tires off the ground and front diff engaged if I spin one tire the opposite should spin backwards correct? It's how the rear end works and all subies. Or would I be able to spin a tire with the rear end on the ground and center diff locked?
My regret for the night is not shifting the lock collar manually with the front end off the ground. To test the diff without the actuator. So I believe I will be re opening the diff.
When the front diff actuator is locked does that connect the diff to the front driveshaft? Or should the diff and driveshaft be connected already and the transfer case engages the front driveshaft and diff?
Thanks to everyone helping me figure this issue out. I really appreciate it.
I stuck my hand inside the diff and manually moved the locking collar. I believe shifting the diff open and closed. I buttoned everything up, no leaks. But I still believe it is not in 4wd. I can't notice a change in steering and when the front end is jacked up, I can only manually spin one tire. Now I'm quite tired and my brain does not want to fully operate for me, but with both front tires off the ground and front diff engaged if I spin one tire the opposite should spin backwards correct? It's how the rear end works and all subies. Or would I be able to spin a tire with the rear end on the ground and center diff locked?
My regret for the night is not shifting the lock collar manually with the front end off the ground. To test the diff without the actuator. So I believe I will be re opening the diff.
When the front diff actuator is locked does that connect the diff to the front driveshaft? Or should the diff and driveshaft be connected already and the transfer case engages the front driveshaft and diff?
Thanks to everyone helping me figure this issue out. I really appreciate it.
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Anyone run into the issue of the front driveshaft not sending power to the front diff? Transfer case sends pore to the front ds as it should. I started the truck shifted into 4hl then removed the vsv hoses and shifted back into 2wd. By checking resistance to the front diff switch I've determined a closed circuit aka locked and working. Yet with the front diff engaged and the t case open I can spin the front driveshaft.
Anyone able to confirm their truck does the same or are you not able to manually rotate the front drive shaft when the t case is unlocked and front diff is engaged?
Am I chasing my tail?
Anyone able to confirm their truck does the same or are you not able to manually rotate the front drive shaft when the t case is unlocked and front diff is engaged?
Am I chasing my tail?
Fixed!!!!
In a combination of seized diff actuator and improperly aligned parts was the cause of my nightmare. $30 in used parts and I'm fixed.
Here's pics of the front diff 4wd selector
Normal 2wd
Normal 4wd
Abnormal 2wd this is very easily possible when reassembling the front diff actuator to the front diff
In a combination of seized diff actuator and improperly aligned parts was the cause of my nightmare. $30 in used parts and I'm fixed.
Here's pics of the front diff 4wd selector
Normal 2wd
Normal 4wd
Abnormal 2wd this is very easily possible when reassembling the front diff actuator to the front diff
96 ToyRunner
Member
Since no one else has said it I guess I'll say it.. congratulations my friend :llama:..When I had trouble with my 4 wheel drive system I was lucky that it was a vacuum line next to the air tank.
