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Ford Mechanic Talks About Transmissions That Self Destruct

An experienced Ford mechanic offers this warning to Ford owners who may not be aware that their transmission may be one of those known to self-destruct, but can potentially be averted if you know where to look for the developing problem with these specific transmissions.


Known Issues with Transmissions

Just like with some car and truck engines that are known for being predisposed toward having serious mechanical failure requiring an overhaul or replacement, some transmissions suffer similar fates.

Related article: One Fatal Flaw That is Destroying Vehicles with Ford Engines

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In fact, just like a chain which is only as strong as its weakest link, some transmissions are known to fail only because a simple component when broken, cascades into a transmission self-destructing before the vehicle owner can recognize and react in time to prevent irreparable damage from occurring.

That’s the message in a recent FordTechMakaluco YouTube channel episode where its host warns Ford owners about a frequent problem with Ford's 6R80 six speed transmissions in the 2009-2014 Ford F-150, which also applies to the 2007-2014 Expeditions with the 6R75 and 6R80 transmissions.

The source of the problem is the transmission coolant lines that are snapping in two in the same spot resulting in an immediate loss of transmission coolant that then leads to the transmission burning up. The damage can easily cost the owner about $6,000 to have repaired.

To learn more about how this is a problem, here is the video in its entirety that shows where to look to identify if you have this transmission and where to look for the coolant line connector that needs a replacement option to prevent this from happening to you.

2009-2014 Ford F-150 6R80 Six Speed Transmission Cooler Line Failure: Don't Let This Happen to You!

And finally…

For additional articles about transmission problems, here are some selected articles that are informative and pertinent toward maintaining your vehicle:

Used Car Transmission Problem Options You Need to Know

Servicing Your Vehicle’s Automatic Transmission Can Be a DIY Project That Saves You Money

Six Vehicles with Fatal Engines or Transmissions to Avoid

The Sealed Automatic Transmission Flush Deception Revealed by a Mechanic

COMING UP NEXT: Catalytic Converter Criminal You Would Not Expect

Timothy Boyer is a Torque News automotive reporter based in Cincinnati. Experienced with early car restorations, he regularly restores older vehicles with engine modifications for improved performance. Follow Tim on Twitter at @TimBoyerWrites for daily new and used vehicle news.

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Bruce McCrea (not verified)    April 7, 2022 - 10:21PM

So what is Ford doing about the 6R75 & 80 poor design of coolant lines?
I have a 08 expedition and a 09 F150, which I imagine I should replace both vehicle coolant lines.

Timothy Boyer    April 12, 2022 - 10:01AM

In reply to by Bruce McCrea (not verified)

Unfortunately, by the time Ford manufacturing gets around to resolving this problem with owners it will likely be too little too late. I'm hoping that the host of the video will post a follow-up video showing a recommended fix for the problem. Check the comments section of the video---sometimes someone will post what they did that helped. Good question. Thanks for the input.

R S (not verified)    April 13, 2022 - 9:12AM

You mentioned transmission cooling lines, then stated that Transmission cooling will be lost. Hi! I've been a mechanic for most of my life. So I ask... Are you referring to transmission fluid and not coolant?
All automatic Transmission have lines that goes to the radiator or a transmission cooling device and a combination of the two as the 2005 Silverado 1500. However, coolant running through the transmission fluid lines I have yet to see. Could you please clarify for the readers who aren't mechanically inclined?

Kevin (not verified)    October 24, 2022 - 3:55PM

This just happened to my 2013 F150 this week. Same exact thing...snapped off at that exact spot.

Luckily, I recognized the issue, (transmission slipping and shifting improperly) before I lost all of the trans fluid and burned up my transmission. I talked to a co-worker who said this happened to his F150 but he was not so lucky. He was on the highway when it failed and his transmission was trashed before he even knew there was a problem.

For me... it is especially concerning there was no "Check Engine" light or any alert given to me as the driver that I should stop driving as my transmission was bleeding to death. I noticed transmission fluid pouring out after I stopped in a parking lot. I'm grateful mine was a $450 repair, not $6000+.

Jeff Partridge (not verified)    March 20, 2023 - 9:01PM

2004 f 150 .. driving when all the sudden a pop and lost both forward and reverse gears in tranny? any info would be greatly appreciated

Nick (not verified)    April 9, 2023 - 8:45AM

Funny I have a Ford F150 xlt
The same happened I lost all transmission fluid and transmission immediately was trash cost me 5k for a new transmission and the new transmission is trash
Fords 10 speed transmission sucks