powertrain malfunction with 100% power - Code P0DE9

[Maxx]

I had my coolant valve replaced a few months ago. It started giving me issues right before I moved across the country. I had no problems fast charging or driving the roughly 2,500 miles I needed to go. I didn’t notice any sounds or clicking. My dealer diagnosed it, ordered the part while I kept my truck, and it took a few hours for them to replace it (it was their first ever replacement).

Not a huge deal in my opinion but also not great that it failed within 35,000 miles. In comparable years of ownership I have had more trips to the dealer for my Lightning than my previous Ranger. Still like the truck but there are certainly some weak spots.

what do you mean by ”started giving me issues”? HVAC issues? Or your battery wouldn’t warm up in cold weather?…..

Your dealer seems to have it together. I dropped off mine last Wednesday. The confirmed that it was the valve and got the part on Thursday but said they had to do a bunch of software updates. Then they said working on the coolant may take some time and couldn’t finish it by end of Friday. Sounded like they would be done by end of Monday but I didn’t hear anything today either. Service advisor is a tool. Could not get me a loaner and really bad at communication. I am not sure if they misdiagnosed, screwed up something or have other priorities. I had a lot of modules behind so I don’t mind if they are spending time updating any of those that may be required for this fix.

I get you on dealer visits. I judge my ownership experience by how often I have to visit the dealer. The ones close to me have bad reviews so I drive 30 miles to go to this one which makes it more of a pain without the loaner.

I google different cities around the world every once in a while to see which is most accommodating for a car free type of life. A bicycle (not even an e-bike) is an ultimate form of transportation I dream of but never have the courage to switch to.

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[NW Ontario Ford Lightning]

what do you mean by ”started giving me issues”? HVAC issues? Or your battery wouldn’t warm up in cold weather?…..

Your dealer seems to have it together. I dropped off mine last Wednesday. The confirmed that it was the valve and got the part on Thursday but said they had to do a bunch of software updates. Then they said working on the coolant may take some time and couldn’t finish it by end of Friday. Sounded like they would be done by end of Monday but I didn’t hear anything today either. Service advisor is a tool. Could not get me a loaner and really bad at communication. I am not sure if they misdiagnosed, screwed up something or have other priorities. I had a lot of modules behind so I don’t mind if they are spending time updating any of those that may be required for this fix.

I get you on dealer visits. I judge my ownership experience by how often I have to visit the dealer. The ones close to me have bad reviews so I drive 30 miles to go to this one which makes it more of a pain without the loaner.

I google different cities around the world every once in a while to see which is most accommodating for a car free type of life. A bicycle (not even an e-bike) is an ultimate form of transportation I dream of but never have the courage to switch to.

From the look of your avatar - I WONDER what your bicylce would look like, if you went that way !!!

 

[Maxx]

From the look of your avatar - I WONDER what your bicylce would look like, if you went that way !!!

Mad Max reborn;

 

[Maxx]

Update: Got the call this morning from service advisor (3 days after Truck was done and ready). Picked it up this afternoon. It runs OK with no wrench. It cost Ford a little over $900.

They replaced the Coolant Diverter Valve and did pcm software update. They said, they retrieved code P0604 and made reference to TSB 25-2236 - PCM ABS, SOBDMB, SOBDNC, SOBDM, BECM. I don't understand any of this. All I know is that the wrench is off.

Next time it comes on, it most likely will be out of my pocket.

p.s. my battery health drop 0.5 to 97.5% while in the shop.

 

[TheBigBezo]

To your earlier question, I was getting the wrench every time my truck started. I didn’t actually have any perceptible issues driving. If not for the wrench I wouldn’t have guessed anything was wrong. I drove it with the wrench for about a month before I was settled in my new home and could make it to the dealer.

 

[Maxx]

To your earlier question, I was getting the wrench every time my truck started. I didn’t actually have any perceptible issues driving. If not for the wrench I wouldn’t have guessed anything was wrong. I drove it with the wrench for about a month before I was settled in my new home and could make it to the dealer.

I didn't notice anything abnormal either. I am thinking when the battery is cold during charging, especially fast charging heating it up may reduce long term damage. Also during a drive with cold battery, I may not get as much energy out of it so heating it may give me more energy out than I put in warming it up. I don't have any data. Just guessing here. So if the valve can not help heating the battery properly when it is cold, damage may be more long term.

I recorded some data when I dropped it off. I may try to record some data after the fix in similar ambient and battery temp and see if battery heats up any faster. Here is the before data. It went up 5 degrees in 25 minutes driving 70+ mph.

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