Broken again! C4 tranny question

[nickeboy]

Hey guys. I had a C4 transmission professionally rebuilt 5 years ago. It has very low miles on it. (under 1000).
I haven't had any issue until yesterday. Driving down the road I could feel a slight 'kick down". It happened for only a second and then did it about 4 more times. I put it into neutral and revved the engine to see if it was coming from the motor or tranny, etc. When I went to put it back in Drive, there was nothing. I pulled over to the side of the road and tried Reverse with no luck. I checked the linkage and all was there. I had to call a tow truck.
So before I tow it to the tranny shop, is there any common issues or fixes that I should check first.
It feels like nothing will engage no matter what I put it into. Even Park doesn't catch.

 

[garberz]

Sounds like your transfer case popped into neutral.

Mark

 

[nickeboy]

STFU. Why the hell did I not even think of that!! Now I feel like a moron.

 

[nickeboy]

Nope, not the problem.

 

[ransil]

check the fluid

 

[sprdv1]

STFU. Why the hell did I not even think of that!! Now I feel like a moron.

LOL, sometimes the simple things

Nope, not the problem.

How's the fluid like Randy said?

 

[Rustytruck]

Block the tires and set the parking brake. With the engine off disconnect the shift lever at the transmission. Move the shift lever on the trans to each of its detentes and see if it clicks in place. If not the shift lever broke inside. If the detents are good then the shifter is doing its job inside the tranny.

look to the outside between the column and the tranny something broken or disconnected. If you break the shift collar or shift tube in the steering column the tranny wont shift.

Now if your tranny is a retrofit floor shifter check the shift cable. I once had a B&M quicksilver floor shifter and the cable housing would split around the 5 year old mark. The split in the cable housing allowed the shift cable to push through the split housing instead of pushing the tranny lever. Going through the motions but not getting anywhere.

We can only guess at this point since we do not have any information on your Bronco other than it has a 5 year old less than 1000 miles on a C4 tranny.

Filling out your signature line information really helps in these situations.

 

[nickeboy]

Update:
Ok. I had a chance to work on my Bronco today. It turns out, the driveshaft is turning. It is not engaging the rear end. I have a full floating rear 9' axle. I don't know much about them, so I tried locking and unlocking the hubs. this did not change anything. Any ideas for those with a full floating 9"?

 

[garberz]

Update:
Ok. I had a chance to work on my Bronco today. It turns out, the driveshaft is turning. It is not engaging the rear end. I have a full floating rear 9' axle. I don't know much about them, so I tried locking and unlocking the hubs. this did not change anything. Any ideas for those with a full floating 9"?

Could be you lost all the ring gear bolts. I’ve seen this failure a few times lately.

Mark

 

[Viperwolf1]

Depends on the type of hubs. One could fail into an unlocked position and you would have no drive unless you have a locker or spool.

 

[nickeboy]

They are standard warn hubs. Does have a locker. Arb air and it’s not hooked up.

 

[rcmbronc]

I would pull the hubs and see if the axles are are turning too see if it is a hub problem. I am not sure about ARB but unlocked they may be an open locker which if there was a problem with one side of the axle you would have no drive.

 

[KyleQ]

Take the lockouts apart and ensure the dog clutch is locking into the hub. If you want, you can take the spring out from behind the gear and put it in front of it, basically forcing it to stay locked at all times.

C4's are stupid simple inside-

 

[Rustytruck]

Does your rear hubs have a locking set screw in the face of the lockout. My friends Jeep with Warn full float you turn the hubs to lock them in if hey wanted to go in. Sometimes you had to rock the tire to actually get them to lock up. Then you tighten the set screw to keep it locked in. He finally gave up on them and used drive slugs instead of the manual hubs.