Will not start after negative temps

[DorlanJ]

Short of it, tried to remote start it today to go for a ride after Elliot passed through and left my area in the low negatives (lowest was -6 with windchill in the -20s), engine will not turn over. Full power is getting to everything, FordPass app is able to ping the system, turning on to ACC power operates everything without issues. I do not have a multi-meter so not sure of true battery charge but so far that doesn't seem to be an issue considering it's barely 2.5 weeks old. Will be calling Ford Road Side (recommendation from Dealer) tomorrow if it still will not start.

Anyone else experience something similar?

Details - Sat out in the drive way over night. Took her offroading this past Sunday but have put another 200-300 miles on it since with regular driving and no issues. Offroad trip was very moderate with no hard trails or obstacles. Trip around town yesterday for about 50 miles did not show any signs of issues.

Troubleshooting steps so far:

1. Checked all connection in engine bay to make sure nothing is loose
2. Attempted to jump after slaving it for ~20 mins to another vehicle
3. Disconnected the negative terminal for ~10 mins to try a "reset"

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[Boreal]

My 2021 Base’s starter died at 7,000kms. Shit happens There are too many systems and electronics involved to really diagnose without Interfacing tools

 

[Rick Astley]

at those temps it could certainly be something simple such as frozen throttle body if it had developed some humidity around the plate and froze shut.

"will not turn over" is not descriptive enough to help diagnose, however.

Will ignition stage 1 function? Can you crank the motor? Have you tried cranking by hand? Fuel levels?

 

[DorlanJ]

at those temps it could certainly be something simple such as frozen throttle body if it had developed some humidity around the plate and froze shut.

"will not turn over" is not descriptive enough to help diagnose, however.

Will ignition stage 1 function? Can you crank the motor? Have you tried cranking by hand? Fuel levels?

Will not turn over - no cranking, no movement of the engine, starter sounds like it's getting an electrical current but no movement in the motor. Haven't tried to crank by hand.

 

[DorlanJ]

OK, update (here and in original post).

The bronco was towed to the dealer yesterday and they were able to look at it today. Once the technician plugged into her, found a U0146 code. They did a reset of the fault codes, everything worked as is.

Possible causes from service technician - Network communication concern, TCU concern, or GWM.

Doing a little digging on the error comes up with this article. The possible causes are electrical based, either with the circuit itself or a bad ground connection. Have to take it back to them anyways as there were some QA issues on delivery, so when I do I'm going to have them do a once over on the electrical cables and grounding to make sure it's up to snuff.

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