What temperature will the blend door stay closed below? Also, A/C for battery
 

I was doing some testing and ran the car very hard by flooring it then regenning. I got the battery up to 100 degree TMX and over 95 degrees TAV. I didn't notice a huge difference in the amount of electric assist I was allowed. The Scangauge didn't show my A/C came on, the battery didn't cool down very fast at all (5 degrees over about 15 minutes) and the blend door remained firmly shut the entire time, or at least the multiple times I checked it. Ambient air temperature according to the readout was 44 degrees F

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

So 157 people read it and didn't know the answer, or has this forum really gone that far down hill? I go out of my way to help people on here when I'm able to and it seems like nobody else is willing to even take a slight effort to extend the courtesy.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

Really? 37 total posts? You sure seem to go out of your way to help people. Kudos to you. You're doing a great job. It's a shame that people don't share your innate sense of helpfulness and extensive knowledge.

I'll try to follow your example and get my post count up with helpfullness too. Oh, wait.

Those 157 people don't have any idea, or they are waiting to post at a time that's more convenient for them.

I don't know the answers, but I can "help" you try to be less of an impatient entitled a$$. Unfortunately, the only way I can do that is point out that you're being an impatient entitled a$$ and hope you can learn some lesson that helps you become a better person. Otherwise, you wan continue to be an impatient entitled a$$. Your choice.

Good luck,

Steve

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

As I type this there are 1 member and 73 guests on the FEH subforum, and that's typical. So the 157 readers of your post are most likely 99% guests with nothing to contribute. I wish I could answer your question but I don't have that information.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

I have a lower post count because my old email my original account was made with deactivated and I couldn't get back in. Thanks for assuming and making YOURSELF the entitled ***. Most of the problems on here are pretty basic and a quick check of the resources will come up with the answer. However problems that need heavy digging will not come so easily. I happen to have both a scangauge II and a complete set of manuals from ford. All I was asking was a pretty basic question that anybody could answer by popping off their rear air filter and checking, I wasn't asking anything that far out of the ordinary.

Now that I know you want to be a complete *** to me I'll remember that if you ever have a question that involves a wiring diagram or anything very complex...

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

I've posted multiple times on here before and in the last year it seems that nobody wants to be very helpful and I'm generally the most common last answer in the newer posts, so yes, what I said is valid.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

Did Steve really post in here just to be an *** when he doesn't even OWN a Ford let alone an Escape Hybrid? Wow, Kudos Steve for having so much of a full life that you took the time out of your busy day to insult me about something you know absolutely nothing about, you sure are a treasure to society.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

Econoline, I don't need anything too specific. I am just wondering a rough range. There's a little panel in the back that you could pop open, if you pull the filter out you'll see the door right under it. I have never seen mine open before when it's 32 degrees, when it's 50 degrees or when it's 70. I know it shouldn't be open if it's hot outside and MAYBE shouldn't be open when it's cold, but I wanted to know if it opens up right when you start the vehicle or only when it is hot. I got the battery to 100 and it didn't open, but it was around freezing outside so maybe at that temp it doesn't want condensation and the a/c would freeze so it's a limbo point?

Anyways, I don't need a lot of specifics, just a few temp points and maybe a scangauge reading to have an idea of what normal is since the manual is kinda sparse.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

LOL... 3 posts in response. Thank you for proving my point for me. Sorry you didn't learn the lesson.

"Boo hoo. Nobody will help me."

Poor you.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

I checked mine this morning when it was 35 deg.F
Closed before starting.
Closed while running
Closed when it went into EV after about 10 min.

Checked again when got home from work when it was 55 deg F.
Same results as above.

Both times I didn't drive it.
Mine is an 06 MMH with 283k miles.
Mine runs excellent and goes into EV mode proper.
I get about 30 mpg with normal driving.
I don't have a Scanguage yet but want one.

When it was warm out the AC would come on proper and cool the battery.
I judged this by feeling the rear cooling lines under the car and one was nice and cold.

I will check again during the next drive.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

Thanks, don't stress over getting the info too quickly, I probably really only need it by spring or so. I swapped my battery and door and it looks like the new door is bad but did try to open and tripped a code when I got the battery hot putting it through its paces whereas the old door didn't really do anything. Unfourtunately the new pack seems to have a bad cell or two, module delta voltage spiked up to about 2volts before regen being disabled when having it floored and letting the state of charge drop to about 35, later dropping much below 45% spiked module delta voltage and disabled assist for a while. On top of that the new fans squeal when they are needed for battery cooling and the car is at city speeds (fans ramp up as you go faster, idle is slowest, highway fastest). So that whole pack is probably going to be swapped out again. I shouldn't have issues with it while it is cold as long as I don't try and run it through its paces though.

If someone could sometime I would be interested to see if you get high module delta voltage at all under full throttle while letting the state of charge get low. This would usually take a few times of flooring it then slowing down with friction brakes then flooring it again.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

I'll be looking into this soon and will report back.

The blend door was replaced 7 years and 60k miles ago, but I'm getting the wrench light and DTC for that problem again. Anyone know what triggers the fault, is it just battery temperature or is the door itself monitored? I'm tempted to do what GaryG recommended and just ignore it.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

Just wanted to post an update. I changed the HV battery filter, it was dirtier than expected, got the wrench light one last time and then all is well since then. The BTC and DTC have not cleared but there is no fault being triggered.

I have been monitoring battery temp (BTM) and ambient temp (Tam) on the SG. What I have seen but don't understand is the A/C being commanded on when Tam<BTM. Under that condition I would expect the blend door to open for cooling by outside air, not A/C.

And I still wonder how the system determines that the blend door has faulted.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

my first attempt at being helpful... i dont know when or what decides the nlend door operation, i also have never seen it opened and have checked under a million conditions. I am pretty sure the actuator that controlls the blend door had a feedback of some kind, resistive likely. when the door does get commanded open and the system doesn't see the signal it's supposed to it will trigger the fault. there is supposedly a way to command it using ForScan and an appropriate obd2 reader and that's what i was looking for when I came across this. I actually didn't note the date this could be a years old thread lol.

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

I read this whole thread and had to laugh.

That silly little air door for the battery is sneaky.
If you think it's always closed, here's the thing:

I don't know why, but in the 2005 it was always closed with the car in park. So if you are solo, it's always going to be closed every time you look.

I got desperate to figure this out, like back in 2010 or something.

I tied a washer to a kite string. Then sat the washer on top of the air door. If the air door opened, the washer would fall in, and I could retrieve it with the kite string.

It fell in on my first drive if I remember correctly.

Also, AC chilled the battery between 75 and 85 degrees IF the user was using AC up front to the vents. Otherwise it didn't.

Between 85 and 95 it always ran the AC to
the battery, but still allowed EV mode.

Above 95 degrees, AC was mandatory and EV was disabled until the battery fell below 85.

hope that helps

Re: What temperature will the blend door stay closed below? Also, A/C for battery
 

Also maybe the vehicle needs to be in motion.

Maybe to prevent tailpipe fumes from coming inside?

I KNOW the fan speed slows down as MPH slows down.