Another tranny down!!! BANG
Thread Starter
|
Freshman User
Joined: Jan 2015
Posts: 43
Likes: 0
Another tranny down!!! BANG
Here's the scoop 1999 F-350 SD DRW. i was going down an interstate at 60 then accelerated to 65 to pass a slower moving grandma. and i started to hear a loud squeak fearing for the turbo i let off the gas then all power shuts down, rear tires lock up, skidding sideways, airbag explodes, and i was able to recover enough to pull off the road. After i gather my thoughts i started restarted the truck put it in gear let off the clutch it dies immediately. To further prove my case i restarted it took it out of gear let of the clutch to see if it would idle and again it dies. I was told it could be the input shaft to the trans has thrown out the bearing. and i have been told that the Diff could be locked up. Has anyone else suffered from the same problem or know what could have happened?? Is it worth fixing?? the trans is a Zf-6
It's a Van Gogh
Joined: Feb 2010
Posts: 7,812
Likes: 1,335
From: Elk Grove, CA
That'll clear the cobwebs. 
Drop the rear of the driveshaft and see if the truck will roll. It prolly will, and then you will know the broken bit is between the engine and the driveshaft. No idea what the cost is on a zf6 rebuild but I'd rather do that than a boneyard trans.
Driveshaft just took a wallop too, I'd get it checked for balance and possibly new u joints. Might be fine but better to find a problem before buttoning it up.
Drop the rear of the driveshaft and see if the truck will roll. It prolly will, and then you will know the broken bit is between the engine and the driveshaft. No idea what the cost is on a zf6 rebuild but I'd rather do that than a boneyard trans.
Driveshaft just took a wallop too, I'd get it checked for balance and possibly new u joints. Might be fine but better to find a problem before buttoning it up.
Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
I agree with pulling the drive shaft to pin point where the problem is. Now honestly I just don't see how the air bags could have gone off. Unless when you started skid that granny hit you. The way the air bag system is designed it takes x amount of G force for them to deploy. So in theory there is no way they should have gone off unless you hit something. Because I would think there is no way that skidding to a stop could produce enough G force. Replacing air bags, clock spring and whatever sensors is going to costly too. Also with all that has been said I am sure your tires now have a flat spot too.
Up side is no one was hurt I hope??
Back to air bag deployment from what I am reading it takes 7g's to deploy or 15 miles to stopped in 0.01 seconds.
http://www.aa1car.com/library/airbag01.htm
Up side is no one was hurt I hope??
Back to air bag deployment from what I am reading it takes 7g's to deploy or 15 miles to stopped in 0.01 seconds.
http://www.aa1car.com/library/airbag01.htm
Senior User
Joined: Dec 2014
Posts: 309
Likes: 0
Or one big jolt from his trans locking up at highway speeds. Think of the mass that just stopped instantly. I can see it popping an airbag.
Trending Topics
Thread Starter
|
Freshman User
Joined: Jan 2015
Posts: 43
Likes: 0
Hell No she didnt!!!!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Freshman User
Joined: Jan 2015
Posts: 43
Likes: 0
as far as the airbags i could careless to replace them. and i will have to rebuild something theres no doubt about that. now i just gotta see what is broken and how many millions its gonna cost me...
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
If you were in gear and just let off the accelerator, I'm surprised the transmission would do something to lock up the wheels while still in gear. I'd have to look at a diagram, but since the input shaft is a main shaft that goes through much of the transmission on the ZF, it doesn't leave much that can cause a lock up without a major failure.
A few decades ago I had the bearings on a much simpler transmission go out while shifting. It locked the transmission in 2nd gear. (not terrible if you've got a 3 speed transmission). I've also had a CAT decide to throw a push rod that wrapped around the camshaft and locked up the engine (and rear wheels). But since your motor re-starts, it sounds like you're luckier than I was with that 3208.
A few decades ago I had the bearings on a much simpler transmission go out while shifting. It locked the transmission in 2nd gear. (not terrible if you've got a 3 speed transmission). I've also had a CAT decide to throw a push rod that wrapped around the camshaft and locked up the engine (and rear wheels). But since your motor re-starts, it sounds like you're luckier than I was with that 3208.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I would replace the airbag for many reasons, including resale value. Say you were to sell (eventually), then the buyer sees a freshly-installed airbag. Here comes the haggling, if the buyer doesn't walk away.
Now... put some drive grime on the airbag by the time you finally resale, it may not look like anything happened. At the very least, take a vid of the truck with the bag deployed - so you have a record of the truck undamaged with the bag out. It's not proof you didn't damage the truck, but it's something.
Once you drop the driveline, you have your answer. A remanned Sterling 10.5 LS rear end is $2,600 and new ones don't exist. Junk yard rear ends are $300 to $800, depending on the situation and who you're dealing with.
Now... put some drive grime on the airbag by the time you finally resale, it may not look like anything happened. At the very least, take a vid of the truck with the bag deployed - so you have a record of the truck undamaged with the bag out. It's not proof you didn't damage the truck, but it's something.
Once you drop the driveline, you have your answer. A remanned Sterling 10.5 LS rear end is $2,600 and new ones don't exist. Junk yard rear ends are $300 to $800, depending on the situation and who you're dealing with.
Cargo Master
Joined: Oct 2003
Posts: 2,833
Likes: 4
From: Jefferson, Iowa
Sounds like a tranny to me, or a combination. You said you put the trans into neutral and let out of the clutch and it died, meaning a trans problem. It should free wheel locked up differential or not. Pulling the driveshaft should just be the 1st step to trans removal, it needs to come out to see what happened. If it did lock up that fast to deploy air bags, there may be other damage to the t case or rear differential.