Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Think I figured out the shuddering when starting from a stop...can't believe it
View Single Post
Old 10-03-2012, 10:24 AM   #8
hotleadsingerguy
Focus Addict
 
hotleadsingerguy's Avatar
 
Join Date: Jun 2011
Fan#: 86687
Location: Cleveland, United States
What I Drive: 2012 Black Titanium 5-Door

Posts: 882
FF Reputation: 5 hotleadsingerguy Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by gkirk View Post
Could it be that with the wheel+tire combo you have, your call falls outside the diameter of wheel that the TC is expecting? My understanding is that the car expects a certain number of revolutions at a given speed, and if its not getting that number, the TC will start doing things.

I had a similar problem with my bimmer's traction control bc i had wheel+tires that were a bit too big (speedometer was off too).

It's just a thought.

Edit: Also the most recent flash for the DCT was also for the ABS/traction control. So maybe there is something at issue there.
The tire and wheel combo is identical to the factory. The tires are actually the stock summer-performance tires, just put on different wheels. The wheels are a lot lighter (21lbs instead of 32lbs), but the dimensions are identical. I put my winter tires on the stock wheels so I could have good-looking black wheels for my summer tires.

Maybe that's the issue. I'm waiting for the regional customer service manager to call me back today so I can let her know the dealership did nothing, and I'll mention my testing as well while I'm on the phone.

It's funny...because I actually perform Quality Assurance as a career
hotleadsingerguy is offline  
    Reply With Quote