2024 Mustang no start/died

[wcd978]

This is about my 2024 Ford Mustang EcoBoost with the 2.3 l automatic w/6000mi. When I was leaving to work as usual, I attempted to start the car in remote start to let it warm up. The car would not start with remote start and the horn chirped a couple times.
I went inside the car and try to start it with the push button start with no luck. Not even a crank, but all the accessory power, radio, speedometer display, Etc was on. No battery light. It refused to even crank so I started it with a portable lithium jump pack. Refuse to start a few more times than turned over and ran. I put it in reverse and the car died immediately. Would not start again. It displayed every warning light in the book. Abs, traction control, service wrench, seat memory unavailable, service soon, etc.

I left and got alternative transportation to work. I got home about 12 hours later and it turned right over with remote start. Drove it up and down the driveway a few feet seemingly with no issue. No lights came on either, let it idle/drove it back and forth for a few minutes without a problem.

Any ideas? Don't want to get stranded. Thinking about trying to drive it to Ford so they can take a look at it.

 

[Lubener]

It's under warranty. Let your dealership look it over, diagnose and atleast get the situation documented. They likely will provide you with a loaner while it's in their shop.

 

[ctechbob]

Ford seems to have an issue with this. I know some people over on the 5th gen Ranger board has had the 'dead truck' problem that just magically fixes itself. Some people never have another problem, some people have it happen a few times.

I would imagine a lot of the electronics are shared.

https://www.ranger5g.com/forum/threads/mysterious-no-start-magically-starts-issue.26553/

 

[Danno]

Thinking battery is suspect.

 

[researcher]

Ford seems to have an issue with this. I know some people over on the 5th gen Ranger board has had the 'dead truck' problem that just magically fixes itself. Some people never have another problem, some people have it happen a few times.

I would imagine a lot of the electronics are shared.

https://www.ranger5g.com/forum/threads/mysterious-no-start-magically-starts-issue.26553/

If I read that link properly (way too early) but looks like the person researching it narrowed it down to a Micro Relay inside the BCM, causing the vehicle to not start..

But as @Danno said, it would not hurt to load test on the battery first.

 

[ctechbob]

If I read that link properly (way too early) but looks like the person researching it narrowed it down to a Micro Relay inside the BCM, causing the vehicle to not start..

But as @Danno said, it would not hurt to load test on the battery first.

Lol, I never had the problem with mine, so I never really fully read it, but that guy goes deep in the weeds with the research.

But yea, I'd do basic checks first, and have the dealer look at it, but never hurts to have a backup plan for when they can't find anything.

 

[Donald]

Let the dealer figure it out. But kind of sounds like a battery or battery clamp/cable problem.

 

[rijndael]

Thinking battery is suspect.

Very likely. Many S650 (24+ Mustang) owners have had AGM battery problems. The dealers just warranty them out.

 

[zzyzzx]

What did your code reader and/or laptop with Forscan say?

 

[KrisZ]

Sounds like a battery issue or battery connection.

 

[ScottyB]

i'd also consider the battery. even if its fairly new, these newer generations of cars are super finicky about voltage. my camaro only made it 2 years on the last battery and i think a cell in it went dead - fine one day, gone the next.

 

[bdcardinal]

These was a recall on these to reseal the windshield. There was water intrusion that would corrode the body control module and cause all sorts of issues. I don't know if it applied to yours specifically, but it would be worth checking with your dealer when you bring it in for the warranty work. Well the dealer will automatically run OASIS anyway when writing the car up.

 

[97prizm]

This is about my 2024 Ford Mustang EcoBoost with the 2.3 l automatic w/6000mi. When I was leaving to work as usual, I attempted to start the car in remote start to let it warm up. The car would not start with remote start and the horn chirped a couple times.
I went inside the car and try to start it with the push button start with no luck. Not even a crank, but all the accessory power, radio, speedometer display, Etc was on. No battery light. It refused to even crank so I started it with a portable lithium jump pack. Refuse to start a few more times than turned over and ran. I put it in reverse and the car died immediately. Would not start again. It displayed every warning light in the book. Abs, traction control, service wrench, seat memory unavailable, service soon, etc.

I left and got alternative transportation to work. I got home about 12 hours later and it turned right over with remote start. Drove it up and down the driveway a few feet seemingly with no issue. No lights came on either, let it idle/drove it back and forth for a few minutes without a problem.

Any ideas? Don't want to get stranded. Thinking about trying to drive it to Ford so they can take a look at it.

Likely a battery issue.

 

[wcd978]

They said they just ended up "resetting/reprogramming" the computer...

 

[researcher]

They said they just ended up "resetting/reprogramming" the computer...

interesting, they just covered anything they could do to the ECU. Resetting reinstates the current programming (sort of like windows, have a problem, restart it, might fix it) and reprogramming acknowledges there was a problem with the existing software and either they reinstalled the current version or Ford had issued an updated version. Many things covered under that vague statement the dealer said..

so basically who knows what really happened to cause your issue, the one thing that is confirmed it was definitely in the ECU or one of the other computer modules. Keep us updated on how it performs..