Sftbldad
Posts: 5
Joined: Fri Jan 21, 2022 10:03 pm

Proactive upper battery back coolant bypass? Opinions

Mon Mar 14, 2022 7:51 pm

Wondering on everybody’s thoughts on this topic?
2017 FFE 61k. My focus will be hitting 100k in about 2 years… Question
Would you pull the upper pack coolant lines at 99k drain coolant
And bypass the line before problems arises? Seems like
This is the big issue that can be avoided on these cars…

Thanks for your thoughts!!!
Steve

Anti_Climax
Posts: 324
Joined: Fri May 20, 2016 12:22 pm
Location: The Valley of the Sun

Re: Proactive upper battery back coolant bypass? Opinions

Mon Mar 14, 2022 8:36 pm

It's 2 years away from 100k and you're considering a bypass at 99K?

If you're going to make modifications, put a moisture sensor in there and deal with it if/when it's needed.
2012 Candy Blue FFE
33.5kWh battery pack
CHAdeMO DC Fast Charging

Sftbldad
Posts: 5
Joined: Fri Jan 21, 2022 10:03 pm

Re: Proactive upper battery back coolant bypass? Opinions

Tue Mar 15, 2022 6:09 am

Thanks for the reply!! I have been a home auto rebuilder for years and
I always try to head off design flaws ahead of time!! I never thought of
Using moisture sensors….. would you use one high on the pack and one
Low in the bottom? Time to do some investigating!! Thanks

Anti_Climax
Posts: 324
Joined: Fri May 20, 2016 12:22 pm
Location: The Valley of the Sun

Re: Proactive upper battery back coolant bypass? Opinions

Tue Mar 15, 2022 9:21 pm

If anything leaks, I'd expect it to hit the bottom. You might also be able to get away with a humidity sensor that would trigger without getting to the point of pooling.
2012 Candy Blue FFE
33.5kWh battery pack
CHAdeMO DC Fast Charging

triangles
Posts: 1198
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio
Contact: Website

Re: Proactive upper battery back coolant bypass? Opinions

Thu Mar 17, 2022 8:13 am

Yeah what Anti Climax said... You could also use one of those sump pump failure alarms that goes off when it detects water. Personally I keep an occasional eye on the fluid level in my coolant reservoir. I will likely watch it like a hawk after my warranty expires next winter.

If you live in a very moderate climate I suppose you could get away with it, but the added degradation from lack of TMS would be unacceptable to me.
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

Sftbldad
Posts: 5
Joined: Fri Jan 21, 2022 10:03 pm

Re: Proactive upper battery back coolant bypass? Opinions

Thu Mar 17, 2022 11:33 am

Thanks for the advice!! I think that the humidity sensor is the way to go! 12 dollars for piece of mind!!!!
They are Bluetooth and I would only take a slight case modification to work!!
Thanks !!!!

Heima
Posts: 240
Joined: Thu Feb 21, 2019 11:46 pm

Re: Proactive upper battery back coolant bypass? Opinions

Thu Mar 17, 2022 7:29 pm

Hmm, I wonder if you could pull the drain plugs from the bottom the battery packs, and replace them with a short (or long) piece of clear tubing. Block off end of course. That way, you could check the tube so often for the presence of coolant.

xhacks
Posts: 9
Joined: Mon Aug 16, 2021 8:14 am

Re: Proactive upper battery back coolant bypass? Opinions

Fri Mar 25, 2022 3:53 pm

I have just left the plugs out so that if it leaks again then it will just drain out

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