Intermittent no power isuue

[YOBY]

Sounds like just a loose battery cable, I'd check that first.

In all my years, I have never heard of so many loose battery cables. The biggest concern in the past were corroded clamps. Guess I better look at mine today.

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[Ckisela]

Here's the part number:
LX6Z14290PA

 

[Chris_G]

Here's the part number:
LX6Z14290PA

Thanks!
A $500 battery cable, yikes!

 

[YOBY]

Looks like more Ford cars just stop working for no good reason

Ford issues stop-sale of electric Mustang Mach-E crossovers due to potential safety defect (msn.com)

 

[Dano]

Looks like more Ford cars just stop working for no good reason

Ford issues stop-sale of electric Mustang Mach-E crossovers due to potential safety defect (msn.com)

Issue seems like the Hybrids problem? Yes, No?.......

 

[YOBY]

Issue seems like the Hybrids problem? Yes, No?.......

I know from experience if your don't overdesign the relays going into these Hybrids, you're going to have failures. My maverick is clicking relays like they have a little band playing under the hood. Unless they have thick silver contacts, they will burnout and fail in a few years.

Because of the uncertainty of the new hybrids, I opted to get a extended warranty for the first time in my life.

 

[Scupking]

I know from experience if your don't overdesign the relays going into these Hybrids, you're going to have failures. My maverick is clicking relays like they have a little band playing under the hood. Unless they have thick silver contacts, they will burnout and fail in a few years.

Because of the uncertainty of the new hybrids, I opted to get a extended warranty for the first time in my life.

You figure Ford would know how to build a hybrid by now since they have been making them for almost 20 years...

 

[YOBY]

You figure Ford would know how to build a hybrid by now since they have been making them for almost 20 years...

It's not a car anymore, it's a computer with wheels. Top shelve components cost a lot of money in the Electronic Industry.

We have been using brakes on cars for over 100 years and now we have intermitent issues.

Get a Prius and copy the whole car drivetrain and build it under license from Toyota. Take small steps instead of trying to bring EV's to market without proper evaluation and testing.

 

[Milous]

The factory manual shows this image for one of the hybrid battery cables ("Battery Cables - 2.5L Duratec – Hybrid (121kW/164PS) (S3)" :

Anyone have any idea if this is the cable with the bad solder connection? It does not appear to match the LX6Z14290PA cable.

 

[Scupking]

The factory manual shows this image for one of the hybrid battery cables ("Battery Cables - 2.5L Duratec – Hybrid (121kW/164PS) (S3)" :

Anyone have any idea if this is the cable with the bad solder connection? It does not appear to match the LX6Z14290PA cable.

I believe this is the bad cable https://www.oemfordpartscheap.com/p...ery-Cable-Positive/119664100/LX6Z14290PA.html

 

[Milous]

I believe this is the bad cable

I wonder if that one runs from the battery to the engine compartment? The image I posted has the end terminal (#2 in my FSM photo) that someone mentioned was the one with the bad solder ("position B" in their photo showing "A", "B", "C").

 

[Darnon]

I know from experience if your don't overdesign the relays going into these Hybrids, you're going to have failures. My maverick is clicking relays like they have a little band playing under the hood. Unless they have thick silver contacts, they will burnout and fail in a few years.

On the hybrid inverter/controller it's designed to specifically mitigate this by first charging a smaller capacitor that requires less current to minimize arcing and balance the voltage on both sides of the contactor before connecting the three larger capacitors.

 

[YOBY]

On the hybrid inverter/controller it's designed to specifically mitigate this by first charging a smaller capacitor that requires less current to minimize arcing and balance the voltage on both sides of the contactor before connecting the three larger capacitors.

It requires more than a capacitor to save the contacts. You need the time-tested RC Circuit to stop the arc and a resistor to limit the inrush current that can ruin contacts. It all gets down to space and how many components you're willing to invest in for a sound design.

 

[Ckisela]

After only 50 days in the shop the saga is finally over.
Ford shipped the part faster than expected, service put it all back together, tested it and gave me a call to let me know it was ready. I took it out yesterday and the truck performed exactly as it should. I hope all the other hybrid owners that run into this issue get a quick fix since this now seems to be a known issue.

 

[Aza]

After only 50 days in the shop the saga is finally over.
Ford shipped the part faster than expected, service put it all back together, tested it and gave me a call to let me know it was ready. I took it out yesterday and the truck performed exactly as it should. I hope all the other hybrid owners that run into this issue get a quick fix since this now seems to be a known issue.

So glad you got it fixed!

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