There is a whole lot of wrong in the post. I'll try to correct all of it.

Only the diesel 4R100 had the mechanical diode. It was in for the first 9 months of production, then a running change removed it during the 2001 model year, not at the start of 2002.

To be sure to break a mechanical diode you had to rev over 4600 RPM, lift all the way off the gas pedal, then immediately stomp it back to the floor. Only gas engine trucks could do this. It was found before trucks were released from the plant, and all the gas engine trucks got new transmissions before they were shipped.

Where do you get the $3 figure from?

There was no recall of any trans for this problem. It was neither a safety nor emissions problem and those are the only two reasons EVER to have a recall. And since no gas engine truck was sold with a mechanical diode trans they didn't have to be fixed later.

Diesel transmissions certainly do have a problem with the mechanical diode. There are plenty of stories here on how it has caused problems.

No rebuilder that knows what they are doing would leave a mechanical diode in the trans once it's out of the truck.

 

Mark what does that do for me? Is ford going to fix my problem? I far as I'm concerned ford is screwing people with this tranny, and should honor these problems. I'm still out 6k either way. Thanks for the post

 

I'm sorry you are mistaken. The gas engine certainly has a mechanical diode. My uncle and I replaced it. Jake Collins's Photos | Facebook There is a picture of the diode we pulled from my GAS truck. My uncle owns a transmission shop and I was wrong. 4600 RPM and $4. Sorry for the inconsistencies or "whole lot of wrong".

But here you go. The WERE recalled by the way:

BlueOvalNews ((BlueOvalNews) Ford Forums, Ford News, Ford Motor Company News, Ford Employee Forum, Ford Reviews, Ford Edge Forum, Ford Flex Forum, Ford Fusion Forum, Ford Sales Figures, Ford Eco Boost Forum, Ford Transit Forum, Ford Transit Connect Forum, Lincoln ) 9/1/00:

"Ford's latest quality sting couldn't have come at a more inopportune time. A flaw in the newly designed 4R100's truck transmission has forced the temporary closure of Ford's highly profitable Michigan truck plant and the decreased production of certain other Ford truck models at other assembly plants. It was earlier reported that a lack of 5.4L V8 engines was the cause of the Michigan plants closure; however, those reports were not correct.

Ford upgraded the 4R100 for 2001 by using a new mechanical diode in the forward clutch area. The new diode was expected to save Ford $4.00 from the cost of each transmission but now the diode is the cause of the transmission's failure. If a diode fails it could damage the transmission and or disable second gear.

The 2001 4R100 transmissions that are being recalled are used in the highly profitable 5.4L V8 powered Expedition,Navigator, Excursion, Econoline van and F-Series truck. They are also used in certain 4.6L powered trucks that are equipped with the California emissions package, and all F150 Lighting models. There are 30 different 4R100 transmission models - none of which are interchangeable. Close to a thousand vehicles with the faulty transmissions have already been sold to the public.

An earlier report by BlueOvalNews.com INCORRECTLY reported that 4R100 transmissions were being diverted from Michigan Truck and Lorain to Kansas City. All production at Kansas City uses the 4R70W transmission which is NOT affected.

The problem was first noticed when some of the Kentucky truck plant's assembled vehicles started experiencing transmission failures before they left the assembly plant. This prompted Ford to issue a stop build and stop ship order at the Sharonville, Ohio plant until the cause of the transmission's failure could be determined. Ford's transmission engineers concluded that the failure was due to an error in the testing procedure and the transmissions would not fail outside of the testing procedure. The testing procedure was modified and Sharonville was asked to continue production and shipment of the transmissions.

Last Thursday Ford's Livonia, Michigan PTOATC discovered that if the engine's RPM went up to 4,600 and then the throttle was released and then applied again under wide open throttle the mechanical diode would fail. Later that night the theory was tested at the Michigan truck plant on seven different Expedition and Navigator models - all experienced transmission failure. On Friday, a second stop build and stop shipment was issued to the Sharonville plant where upon all 4R100 transmissions intended for non-diesel engines was issued. On Saturday, 20 experimental 4R100's were built using an a new mechanical diode design and there have been NO REPORTED FAILURES.

Sharonville is now building the upgraded transmissions which have an orange paint splash on the top of the case (bellhousing) and on the side cover where the Ford script is located.

An estimated 50,000 transmissions were built with the bad diodes. Ford is making every effort to recall each transmission back to Sharonville where upon they will be rebuilt. Reverting back to the 2000 design could force Ford to idle production at several plants for weeks. Sharonville is currently building the 2001 design.

Since the problem only occurs when the engine's RPM range is above 4,600 rpms, transmissions used with diesel engines are not going to be recalled since this is above their operating range.

BlueOvalNews has reported several problems with Ford's ability to design and engineer a durable transmission - but there have been NO instances where the quality of a transmission's assembly have been a major issue."

 

I'll just pull this quote out so its clear:

"Since the problem only occurs when the engine's RPM range is above 4,600 rpms, transmissions used with diesel engines are not going to be recalled since this is above their operating range."

 

You're telling Mark, who is is a retired Ford Transmission Engineer and worked on the 4R100 program that he is mistaken about his posts on the 4R100 transmission?

Seriously?

 

Yeah, I'm sorry but he has his facts wrong it doesn't really matter who he is. The fact is I physically held a mechanical transmission diode out of my truck. And they were recalled according to blue oval. I don't mean to come off as rude at all. And I mean no offense to anyone.

 

Since this was recalled does that mean repairs should be on fords dime?

 

I am not sure about that. It has been a long time since 2000 but I was wondering the same thing after I forked over $1k in parts (mine wasnt just the diode problem though).

 

They were not recalled. They were replaced before they left the factory. It is not inconceivable that one or two could have been missed and left with a mechanical diode. We were told at the time that every one was changed before it was shipped.

Using BON as a factual source is pretty funny!

 

Does anyone think it would be worth a call to ford customer service to see if there is anything they can do?

 

I would call them. Apparently it is debated whether they were recalled and I would say my two sources saying they were recalled is worth a call to Ford to see whats up.

 

Dealer pulled the pan and said there was alot of material in the pan and they suggest replacing the tranny. They want $4100 to install a re-man when asked if it had the machanical diode in it I was told no. How would you know this if you only pulled the pan? Seems to me the dealer is trying rake me over the coals.

 

Interesting. Yeah I took mine to my uncle so there was no BS involved and it is now fixed. I only spent $900 for a new diode, 2nd gear, overdrive and reverse among other things. Oh and the thing the shift cable connects to. I would suggest going to another place. My uncle told my that these trannys rarely should be replaced because they are worth a lot more money than other trannys and cost to repair is usually lower. I mean look at the pile of parts in mine it was damn near the whole trans... I would suggest checking another transmission shop before you make a final decision.

 

Called ford customer care they basically told me to pound sand. I got the dealer down $500 on the Install I'm looking at $3600. In the end the first tranny went out at 45k the second lasted about 18k without ever seeing a hitch. They call them super duty, huh super something but not super duty

 

You got a new mechanical diode? Then you REALLY got taken! NOBODY reinstalls a mechanical diode. That's building a failure right into the trans.