9 replies to this topic

[scifi_geek]

Just got a used 2015 Energi with 8300 miles.
It appears to have a full tank of gas, but the range indicator in the lower right info window shows a combined range of about 120 miles.

I've only driven just over 100 miles since picking it up. I earlier reset the fuel history display which now shows an average of 90 MPG based on my commute trips so far this week.

This was likely a dealer demo car for most of its life.

Any ideas for getting the range indicator to "reset" to a realistic estimate?

[stevedebi]

Just got a used 2015 Energi with 8300 miles.
It appears to have a full tank of gas, but the range indicator in the lower right info window shows a combined range of about 120 miles.

I've only driven just over 100 miles since picking it up. I earlier reset the fuel history display which now shows an average of 90 MPG based on my commute trips so far this week.

This was likely a dealer demo car for most of its life.

Any ideas for getting the range indicator to "reset" to a realistic estimate?

It will "reset" itself very quickly. Ford calculates a Running Average Fuel Economy that is used to update the gasoline part of the display. Should get back to normal within a tank or two.

[scifi_geek]

Thanks!
I'll try to be patient...

[rbort]

Disconnect the 12v battery from the trunk area, wait a couple of minutes and put it back.  The car will reset the RAFE number to about 42mpg and the EV range to 20 miles.  Your coach bars will be all black and you will have to build them back up.  That should indicate a full tank range of about 586 miles on gas, with a full battery charge 606 miles.

 

You won't lose radio stations.

 

-=>Raja.

Edited by rbort, 06 April 2017 - 08:37 PM.

[scifi_geek]

Any safety guidance on disconnecting the 12 volt?
I haven't really ever replaced a battery myself (or disconnected one) only jump-started dead ones before.
I did find the 12 volt location in the rear hatch area..

Do I actually need to remove both panels and physically remove the battery, or can I just disconnect the positive terminal for a bit. If the latter, perhaps I can avoid removing the panels with Torx bolts and just use the access hatch which pops off.

Looks like the positive terminal is easily accessible. Looks like I could use a socket wrench to loosen and remove the terminal connector.

Thanks for your insight!
Andrew

[rbort]

You don't have to unscrew anything, just take out the covers and panel and you can see the battery inside.  

 

As far as disconnecting it, if you disconnect the 12v positive just be very careful the wrench doesn't touch the car's body while on the terminal.  Loosen it carefully, pull it up, wait a minute, put it back and tighten back up.

 

The negative is safer to disconnect first in the fact that if the wrench touches the car it won't matter.  

 

But either will work, so just be careful if doing the positive one.

 

My RAFE is showing 53.6 now since I've been driving hybrid mode in the city with the engine, if I fill the tank the range will be 750 miles.

 

-=>Raja.

[Matt Bonnett]

Usually recommended​ on removal to disconnect negative first then positive. Reconnecting do positive first and then negative. Same for jump starting as well. But you can do either way. The concern is you have a MUCH larger amount of energy going through the positive that if you finish making the circuit with it it'll ark/spark a bit. Not a huge concern on cars though.

If all you are doing is trying to fire a reset you can just disconnect the negative and leave the positive alone.

[rbort]

^^ I think its because they don't want you to short the battery out by mistake with the wrench on the positive hitting against ground of the car (body).

 

-=>Raja.

[scifi_geek]

And it worked out fine!
I now have a range of just under 400 miles with just under 3/4 of a tank. I'll have to calculate the RAFE once I have a full tank, right?

I did need a small socket wrench with a 10mm socket to get the positive terminal disconnected. The negative terminal was just too far back and inaccessible without removing more panels. So far, so good.

Thanks for the tips!

[rbort]

Yup, once you fill it up you should see about a 600 mile range from 14 gallons worth.  

 

You're welcome and enjoy!

 

-=>Raja.