Hybrid10 Posted June 20, 2019 Share Posted June 20, 2019 I have a 2010 Fusion Hybrid with 206k miles. I've been having issues like many others that can't keep the car in EV mode under 47mph. The EV green bracket barely gives me any room to drive in EV. So I took it to the Ford dealership I told them the issue and told them to reprogram the car's personality to 1 year from what I read other's have done. So I got the car back yesterday and it was working a little bit still not much of a threshold but a little like i could barely maintain the speed at 40mph. The battery still stays charged in the middle most of time. They told me they found two codes in the system as you can see in the description of my paperwork from the ford dealership but still doesn't work like it use to. Is maybe my hybrid battery at the end of life ? 0 Quote Link to comment Share on other sites More sharing options...
VonoreTn Posted June 20, 2019 Share Posted June 20, 2019 (edited) Thanks for your detailed feedback. I have 144K miles on my 2010, and I notice a little bit of what you are talking about. But my FE is holding at about 39 mpg average, except when I make a lot of short trips, like within our development up to the tennis courts. When I make longer trips averaging 50-60 mph it still gets over 40. Sustained highway 70+ mph never was over 40 without at tailwind. Keep us informed as to if your think the PCM re-program has worked to any extent worth the rest of us requesting it. Good to know there is a TSB on this issue. I have complete FE data from every fillup for the last 10 years, if anyone is interested in the Excel graphs. And I only did fillups. Edited June 20, 2019 by VonoreTn additional information. 0 Quote Link to comment Share on other sites More sharing options...
Hybrid10 Posted June 20, 2019 Author Share Posted June 20, 2019 Sounds good thanks for the information just trying to help out with the info I noticed many people that have the 2010 hybrid model are having these issues with the EV not functioning properly. One thing I did notice I would always get the wrench light when I went 70+mph on the freeway and that did not happen so far today which the reprogram must have fixed. But this pic just took car is warmed up but that is all the EV threshold line will go up to which doesn't really give me any room to drive in EV barely in the parking lot too. Is that what your getting too ? I remember i use to the first line or just past that all the time. That's why I'm wondering if my battery is degrading... 0 Quote Link to comment Share on other sites More sharing options...
VonoreTn Posted June 21, 2019 Share Posted June 21, 2019 Are you talking about the battery level meter on the right? If so, that doesn't look bad to me, I just drove mine and it is on the bottom of the H, but I have seen it as low as in the middle of the range. It would be interesting to monitor our actual high voltage battery DC volt level, but I assume tapping into that would be difficult. I find that after driving for awhile, like 20 minutes, it is more likely to drop into electric mode at 45 or below. I don't think it will go into that mode with a cold engine, heat for the driver and for emissions function from a warm engine gets computer priority over full electric drive. Even without that mode you still get the benefit of better FE, because the electric motor helps the ICE supply power, even at 50 mph and above. You can witness that on your system info screen while driving. If your FE is still high 30's or low 40's, I wouldn't worry about it. 0 Quote Link to comment Share on other sites More sharing options...
Hybrid10 Posted June 21, 2019 Author Share Posted June 21, 2019 no the battery charge level is fine. I'm talking about the EV green lines i use to get around 2 bars normally to use EV in the city where i use to easily get 45-50mpg. Without the power bracket column I barely can get in the mid 30s which is huge drop. On highway speeds of 50-70mph I can get really good gas mileage between 38-44mpg. 0 Quote Link to comment Share on other sites More sharing options...
allen84 Posted June 21, 2019 Share Posted June 21, 2019 Try this method. This should fix the EV issue and bring it back. 0 Quote Link to comment Share on other sites More sharing options...
Hybrid10 Posted June 21, 2019 Author Share Posted June 21, 2019 Thanks im going to buy the things needed for the job and see how it goes next week. I'll keep you guys updated looks like that will do it 0 Quote Link to comment Share on other sites More sharing options...
allen84 Posted June 22, 2019 Share Posted June 22, 2019 (edited) 5 hours ago, Hybrid10 said: Thanks im going to buy the things needed for the job and see how it goes next week. I'll keep you guys updated looks like that will do it I'm almost certain that it will fix your problem. I was pretty pissed off, that this is what my car has become, for more than a year now, and had to accept that it is now a regular gasoline car. I wasn't going to plunge money down on new hybrid battery cells, when it's worth half as much as the car's current worth. It was either spend more on gas and deal with it, or get a new battery and save gas. Either choice I go with, I still don't save any money. I would have to drive the car for 10 more years to recoup the cost of the battery. It just made no sense. At this point I would just drive the car into the ground, or keep looking on eBay for any cheap refurb batteries. But with this fix, it is instant day and night. The familiarity of driving the car the way it was intended, comes flooding back to you. I actually enjoy driving my car again. Edited June 22, 2019 by allen84 0 Quote Link to comment Share on other sites More sharing options...
Hybrid10 Posted June 23, 2019 Author Share Posted June 23, 2019 I agree what's the point of owning a hybrid if it's not working properly after certain amount of time especially if it's happening to everyone that has a 2010 model. some dealers will do the reset but I'm going to end up doing it myself just like you did I'm sure we'll fix it the car runs pretty damn good for having this many miles I've taken very good care of it and I commute far daily 120+ miles. Thanks a lot for all the information I'll keep you updated to see how mine comes out I should be able to do it many steps but looks simple 0 Quote Link to comment Share on other sites More sharing options...
mmtphoto Posted July 10, 2019 Share Posted July 10, 2019 I want to express my appreciation to Allen84 for posting this-my wife's 2010 FFH was getting progressively worse when going into EV, even on level ground-mileage was hovering around 30 mpg, and at 108,000 miles I was looking into replacing the HVB, but after applying this work around, it's getting north of 37 mpg with the same type of driving. What a difference! Before applying this, I did a rebalance using my Autel MS808 , so I can't imagine there is much more could be done to improve how this runs short of replacing the HVB. I have a friend who is a sales manager of a large Ford dealer and I spoke with him about this-he got me on the phone with the service manager who was unaware this was happening to vehicles approaching 10 years of age. Although I did not want to take it to a dealership for this fix, he told me if I couldn't do this myself he'd look into having it done there. Now I don't have to, and my neighbor, who has a 2010 Fusion Hybrid and a 2011 Lincoln MKZ Hybrid wants me to do his cars too. If you have one of these cars you need to look into doing this, makes it run as intended, and I'm sure we'll get more years out of this car now, it's fun to drive again so follow these instructions, you'll love it! Thanks again, Allen, great post! 0 Quote Link to comment Share on other sites More sharing options...
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