understanding 4R100 Torque Converter Problems
Thread Starter
|
Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
MERCON won't damage the seals on your old C6. It will, however, completely destroy the clutches and bands, requiring a rebuild.
Ford switched to MERCON from Type F in either 1977 or 1978. A 1976 C6 MUST have Type F or the frictions are going to slip and destroy themselves.
Ford switched to MERCON from Type F in either 1977 or 1978. A 1976 C6 MUST have Type F or the frictions are going to slip and destroy themselves.
Once again you saved my BUTT and I am glad I asked you before doing anything. So for now I guess I just leave it alone until I find type F. Which I don't see happening because I don't think I have seen type F in at least 15 years. But I haven't looked for it either.
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Thanks Mark !!! Once again you saved my BUTT and I am glad I asked you before doing anything. So for now I guess I just leave it alone until I find type F. Which I don't see happening because I don't think I have seen type F in at least 15 years. But I haven't looked for it either.
Once again you saved my BUTT and I am glad I asked you before doing anything. So for now I guess I just leave it alone until I find type F. Which I don't see happening because I don't think I have seen type F in at least 15 years. But I haven't looked for it either.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
Ford won't have it. I don't know of any other fluid that is compatible with Type F. Quite a few auto parts stores still sell Type F. If they don't have it in stock the better stores can order it.
Thread Starter
|
Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
I'll do that Mark start checking parts stores and stock up when I do find it.
Last edited by BadDogKuzz; Aug 31, 2012 at 12:58 PM. Reason: Change late post!!
New User
Joined: Dec 2011
Posts: 19
Likes: 0
Mercon
Hi Mark, I have a buddy that did his tranny flush, he has a 2000 f-250 7.3 automatic, I told him to use mercon v or moble 1 synthetic, he could only find mecon dextron his said. Is that going to hurt his transmission? Does he need to drain and reflush with correct fluid?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
Good luck with that.
The 4R100 left the factory with MERCON fluid. It won't hurt it.
Hi Mark, I have a buddy that did his tranny flush, he has a 2000 f-250 7.3 automatic, I told him to use mercon v or moble 1 synthetic, he could only find mecon dextron his said. Is that going to hurt his transmission? Does he need to drain and reflush with correct fluid?
Elder User
Joined: Jun 2007
Posts: 570
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
New User
Joined: Dec 2011
Posts: 19
Likes: 0
Ok, thanks Mark, I will let him know, so far my transmission is working perfect, Im the guy that has the 2001 ford F-350 7.3 with 28,000 original miles, just had it flushed with the correct fluid, am hoping that it lasts for many more miles, also will be installing the 6.0 cooler soon.
Thanks,
Terry
Thanks,
Terry
Logistics Pro
Joined: Apr 2010
Posts: 4,446
Likes: 25
From: Panama City, FL
Ed, I still use type F in my 2 73 fords. I just bought 15 quarts from Advance Auto about a month ago. They have it on the shelf.
Mark, I had my orginal C6 from my 75 F150 rebuilt in 01 and before that I used Type F and after the rebuild I asked the guy if I still use Type F and he said no that I need to use mercon. Would those new parts he installed be for use with mercon and not type F?
Mark, I had my orginal C6 from my 75 F150 rebuilt in 01 and before that I used Type F and after the rebuild I asked the guy if I still use Type F and he said no that I need to use mercon. Would those new parts he installed be for use with mercon and not type F?
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Ok, thanks Mark, I will let him know, so far my transmission is working perfect, Im the guy that has the 2001 ford F-350 7.3 with 28,000 original miles, just had it flushed with the correct fluid, am hoping that it lasts for many more miles, also will be installing the 6.0 cooler soon.
Thanks,
Terry
Thanks,
Terry
New User
Joined: Dec 2011
Posts: 19
Likes: 0
Thanks for the complements, I purchased it from the original owner, the truck has never been driven in the winter, it is all stock, it even had the original date coated firestone steeltex tires on the truck when I purchased it. The truck is in showroom condition, I also plan on storing it for the winter months as well. I plan on leaving it bone stock with the exception of adding a 6.0 tranny cooler.