Log in

View Full Version : traction control issue


fordfnatix
06-29-2010, 09:17 AM
Any one have any advice or info on the traction control in these cars?Mine (when traction control is on) just bogs down most of the time.won't drive highway speeds.but when i turn the button on the dash of it's a powerhouse and drives perfectly....so it seems.
any help or advice would be greatly appreciated!
thanks
CBT
06-29-2010, 09:20 AM
Any one have any advice or info on the traction control in these cars?Mine (when traction control is on) just bogs down most of the time.won't drive highway speeds.but when i turn the button on the dash of it's a powerhouse and drives perfectly....so it seems.
any help or advice would be greatly appreciated!
thanks


Sounds like your tire sizes are off.
fordfnatix
06-29-2010, 09:23 AM
running pirelli 235 50 18 front and rear
CBT
06-29-2010, 09:28 AM
running pirelli 235 50 18 front and rear

For how long?
fordfnatix
06-29-2010, 09:29 AM
these are the tires that came with car when i got it a month ago
rayjay
06-29-2010, 09:29 AM
running pirelli 235 50 18 front and rear

If you have TC you CAN NOT run the same size tires front/rear. You need to run the OEM 245/55/18 or larger on the rear for the TC to work properly -OR- drive with the TC turned off. Many of us here have gone with 255/55/18 on the rear as there are many more choices in that size.
musclemerc
06-29-2010, 09:33 AM
If you choose to run that size tire you could always get a Xcal and change the tire size within the tune.
fordfnatix
06-29-2010, 09:34 AM
well you guys just made my day! I AM AN IDIOT! I've read and read as much as i could about this change and thought i had it right.Guess I will have to get two tires this weekend.
Thanks again guys!
CBT
06-29-2010, 09:34 AM
If you have TC you CAN NOT run the same size tires front/rear. You need to run the OEM 245/55/18 or larger on the rear for the TC to work properly -OR- drive with the TC turned off. Many of us here have gone with 255/55/18 on the rear as there are many more choices in that size.
Grrrr! You stole my thunder, lol! The 255 rears is spot on, that's what I switched to.
fordfnatix
06-29-2010, 09:36 AM
well i do plan to get a tune soon (within a couple of weeks) should i hold of on the tires till i get a tune? Biggest question is am I damaging anything by running like this?
CBT
06-29-2010, 09:39 AM
well i do plan to get a tune soon (within a couple of weeks) should i hold of on the tires till i get a tune? Biggest question is am I damaging anything by running like this?
Yeah, your brakes if you keep running it with traction control on. Just flip it off whenever you sit in the car.
fordfnatix
06-29-2010, 09:49 AM
kind of got in the habit of turning it off soon as I start it.
I really want the tune but have to work more ot to get it!
I didn't want to buy tires till next year.
thanks again guys!
RocsMerc
06-29-2010, 09:56 AM
If you choose to run that size tire you could always get a Xcal and change the tire size within the tune.

I had no idea this could be fixed with a tune. I always thought the tire size in the tune was just for correcting the speedo. Learn something new everyday.
CBT
06-29-2010, 09:58 AM
I had no idea this could be fixed with a tune. I always thought the tire size in the tune was just for correcting the speedo. Learn something new everyday.

That's part of what makes this site the ****z-bomb. :beer:
ctrlraven
06-29-2010, 10:13 AM
Last time I checked changing the Revs Per Mile in the User End Adjustments is just for correcting the speedo. The shifts will still be off unless the tuner has corrected the adjustments within the tune file. Otherwise you'll have to play with the Shift MPH when upsizing the rear tire. I had to do it until Zack set my RPM within the tune.
Marauderjack
06-29-2010, 03:20 PM
I had no idea this could be fixed with a tune. I always thought the tire size in the tune was just for correcting the speedo. Learn something new everyday.

You cannot fix it with a tune!!:shake:

For some reason you cannot turn the Traction Control off in these cars......tried it many times and it don't work......probably has to do with ABS safety??:cool:

You need to have the right front/rear tire size differential to fix it!!:beer:
rayjay
06-29-2010, 04:24 PM
You cannot fix it with a tune!!:shake:

For some reason you cannot turn the Traction Control off in these cars......tried it many times and it don't work......probably has to do with ABS safety??:cool:

You need to have the right front/rear tire size differential to fix it!!:beer:

+1, Maruaderjack is correct. The TC can not be modified with a tuner. You'll need the new tires.