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Car jerks when coming to a complete stop


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6 replies to this topic

#1 OFFLINE   tz7797

tz7797

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  • Location:Ohio
  • Current Vehicle:2010 Fusion Hybrid
  • My Hybrid's Year:2010

Posted 10 April 2019 - 09:11 PM

I have a 2010 Fusion Hybrid. The car wants to jerk when I am coming to a complete stop. It doesnt do it all the time. Now sometimes it is just a little jerk but than it can be a big jerk when I am stopping.
Can anyone help me figure out what this could be.







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#2 OFFLINE   murphy

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Posted 11 April 2019 - 05:52 AM

We need a better description of what is happening. 

 

If either front wheel loses traction, while still in the regenerative braking mode, your brain will tell you the car is accelerating.  It isn't but that's what it feels like.  Because of how a differential works all regen braking immediately stops if one wheel loses traction.  One wheel going over a sunken manhole cover will do this every time.  The solution is to push harder on the brake pedal to engage the service brakes.



#3 OFFLINE   Waldo

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Posted 11 April 2019 - 08:48 AM

Also if it's been raining the brake rotors will get rusty, so when you transition from regen to the brakes it can be jerky.



#4 OFFLINE   tz7797

tz7797

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Posted 11 April 2019 - 10:32 AM

The car will I guess you could call it jerk, but what it is doing is when I am coming to a stop, the car will like jerk hard to a stop. Not jerk forward but like I slammed on the brakes harder. It doesn’t do it all the time. It didn’t start doing this until we had the de rear hub replaced and the de rear wheel sensor cleaned. The car feels like it wants to stopharder than I want it to which is why I say it is jerking to a stop

#5 OFFLINE   ptjones

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Posted 11 April 2019 - 01:56 PM

That is because you go from regen braking to mechanical disk braking at around 5 mph and some times they grab when not used much.

 

Paul


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Current Record:  12/30/2014  902.2 mi.  63.8 mpg  14.13  gal. (Actual GPS:  922 mi.  68 mpg  13.5 gal.


#6 OFFLINE   tz7797

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Posted 11 April 2019 - 03:21 PM

The car has never done this before and I have had it for 3 years now

#7 OFFLINE   hytibill

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  • Current Vehicle:2013 Ford Fusion Hybrid Titanium

Posted 03 June 2019 - 10:31 AM

Check your suspension. The shocks and struts might cause this to happen if they go bad.






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