Heima
Posts: 153
Joined: Thu Feb 21, 2019 11:46 pm

Re: Considering giving up the fight

Wed Dec 23, 2020 12:38 pm

Don't know why Tesla has not thought of this, but Ford could do something really cool with the Pedestrian Alert System (the artificial sound the car pumps out speakers, so that pedestrians will hear the car).

If you could custom load the sound, imagine racing engine sounds (your GT for example) , aircraft engine sounds, motorcycle sounds, sci-fi sounds, and what I would think perfect for the Mach E, horse galloping sounds.

electrons
Posts: 141
Joined: Sat Jan 30, 2016 4:22 pm

Re: Considering giving up the fight

Thu Dec 24, 2020 6:19 pm

Heima wrote:
Wed Dec 23, 2020 12:38 pm
If you could custom load the sound,
I think it has to sound like an engine for a blind person, or person looking the other way, to perceive it as a vehicle. I'd be in favor of sounding like the low-frequency rumble of a V8 maybe. That would require a sub-woofer but worth it probably. Right now my new Leaf makes a tinny, high-frequency with a cheap small light speaker, not a sub-woofer. The old FFE I had would make a weird growl that sounded a little like a "motor" running I guess.

Might also require a decent subwoofer to put a little V8 sound into the cabin for entertainment too. Not just pedestrians outside for safety. Inside I assume you could use the stereo system speakers for effect.

Anti_Climax
Posts: 101
Joined: Fri May 20, 2016 12:22 pm
Location: The Valley of the Sun

Re: Considering giving up the fight

Fri Dec 25, 2020 5:07 pm

So, similar to the original post on this thread, I've been dealing with ongoing issues that are not triggering codes.

The car fairly often would not run the AC during the hottest part of the day which I absolutely understand may happen if the battery is overheating (it will give full compressor output to the battery loop and bypass the cabin cooling loop) but this was occurring right after removing the car from my L2 charger where the cooling should have been on as soon as the pack temp passed 97F. In fact I'd get home from my morning drive, plug the car in to top back up and when I'd get in the car in the afternoon the battery would be 104-108F which shouldn't be happening at all when the battery is full and the L2 charger is still connected.

I documented this and took it to the dealer. Early on they diagnosed that one of the pumps on the battery coolant loop was "weak" and swapped it out for their hefty sum. That didn't fix the issue and eventually it went back but they were unable to find any issues. After that visit, I'd notice that the AC compressor seemed to cycle a bit more often and the same poor cooling behavior was happening. Eventually, while I was out of town for work, it got to the point where the AC compressor was cycling a few times a minute the entire time it was plugged in to the L2 charger. In the few weeks I was gone it had to have cycled thousands of times. Of course it's under warranty from an unrelated replacement but I'm sure it will wait until 731 days after replacement to die.

I took it back again and this time they found that the refrigerant was low but couldn't find a leak. Topped it up, sent me home and told me to bring it back as soon as I noticed any symptoms. Sure enough they found the dye leaking at the chiller. They fixed that, sent it along and the battery cooling problem got worse than before - not just getting hot but getting hot enough to put it into turtle mode yet somehow not trigger an error code. This occurred the night I brought it home so it went right back but they were unable to replicate it. I took it home again and had it happen immediately.

At that point I decided there is no point in having them work on it anymore since they can't diagnose it anyway. So I have a copy of the shop manual and I'll just be diagnosing it the old fashioned way - with critical analysis.

I love the car but I fucking hate dealing with Ford.
2012 Candy Blue FFE
33.5kWh battery pack
CHAdeMO DC Fast Charging

Heima
Posts: 153
Joined: Thu Feb 21, 2019 11:46 pm

Re: Considering giving up the fight

Fri Dec 25, 2020 10:00 pm

Get yourself Forscan and and an OBD/ELM327 dongle to help you with your endeavor.
Knowing the codes as you start out will help immensely.

electrons
Posts: 141
Joined: Sat Jan 30, 2016 4:22 pm

Re: Considering giving up the fight

Sat Dec 26, 2020 8:14 am

Heima, yes I think Forscan will work, and other brands of apps might not.

Anti_Climax, being near Phoenix with little A/C can't be good. Hard to diagnose of course, but this is the interweb, so I'll give it a shot: Sounds like an obstruction in the refrigerant lines is reducing cooling ability. Or a bad feedback sensor (pressure, temperature). Both might cause cycling.
I was told last year that my A/C compressor was causing an intermittent short-to-ground from the HV battery. A dealership told me that. I chose to not spend a bunch of $$ replacing the compressor unit, ignored the issue, and the dashboard warning never came back. These things can be mysterious.

"Giving up the fight" as I & some others have done, reminds me of so many folks who have told me "Never own a complicated German car past the warranty period." Seems that advice applies to about any vehicle make these days, or one can take the risk of repairs themselves. Owning vehicles is a crap-shoot.
Another old rule is to sell your car either at the 3-year point, or the 12-year point only, to minimize the risk of not getting your money's worth.

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