DenverPed Report post Posted July 20, 2019 I have a 2010 Fusion Hybrid with 103K miles. In the past 6 months the lag from touching the accelerator to gas engine start and power has increased noticeably. I had the plugs replaced and fuel injection system cleaned at just over 100K as recommended. No change. Hybrid system seems to be working as it always has. Overall mileage might be down a bit but likely related to less highway driving and many short trips by my wife. No warning lights at all. Highway performance is quite normal.Anyone else with the problem? Quote Share this post Link to post Share on other sites
lolder Report post Posted July 25, 2019 This is most likely due to the software limiting EV operation as mentioned elsewhere in this forum. How long have you had the car? While driving at a steady 30 mph do EV and ICE operation alternate every 1/2 mile or so which is normal? Quote Share this post Link to post Share on other sites
DenverPed Report post Posted July 29, 2019 I bought it new 9 years ago. As long as I touch the accelerator at any speed the ICE immediately starts. Quote Share this post Link to post Share on other sites
