Car Falls on its Face at WOT throttle.
10-21-2010, 05:43 PM
#1
2nd Gear Member
Thread Starter
Join Date: Sep 2009
Location: arkansas
Posts: 224
Car Falls on its Face at WOT throttle.
My 06 GT has been doing this for awhile, i think its getting worse.
When you go WOT the engine hesitates for 1 to 2 seconds (feels like about ½ throttle) and then goes all out. Doesn't feel like its missing (runs smooth) just a serious hesitation and doesn't do it every time. Any ideas?
When you go WOT the engine hesitates for 1 to 2 seconds (feels like about ½ throttle) and then goes all out. Doesn't feel like its missing (runs smooth) just a serious hesitation and doesn't do it every time. Any ideas?
10-23-2010, 03:25 PM
#4
6th Gear Member
If it's doing it mostly after a steady cruise, then I'd suspect the fuel pump. There's a TSB on it. If not, then a tune should fix it after cleaning the TB and MAF and replacing the fuel filter. Also, be sure your TCS is off. My TCS caused bad hesitation going to WOT on occassion due to cutting spark. I haven't had it happen since I made it a habit to turn TCS off.
10-24-2010, 08:57 AM
#5
2nd Gear Member
Join Date: Jan 2008
Location: Texas
Posts: 151
Sounds like what my car does but it's very seldom. When I was stock it happened more often but since I have a tuner it's very rare. About the only time it happens is on a long cruise and then when you try to get on it, it hesitates. To me it feels likes a throttle body issue but when I've taken it in, they just reset the computer and say everything looks fine. It happens so rarely I just live with it but I would be interested to know if there is more to this and a possible fix.
10-24-2010, 10:04 AM
#6
6th Gear Member
Sounds like what my car does but it's very seldom. When I was stock it happened more often but since I have a tuner it's very rare. About the only time it happens is on a long cruise and then when you try to get on it, it hesitates. To me it feels likes a throttle body issue but when I've taken it in, they just reset the computer and say everything looks fine. It happens so rarely I just live with it but I would be interested to know if there is more to this and a possible fix.
10-24-2010, 10:44 AM
#7
2nd Gear Member
Thread Starter
Join Date: Sep 2009
Location: arkansas
Posts: 224
Mine doesn't seem to care, it will do it almost anytime. I was trying to figure it out before my supercharger went on but i couldn't wait and i will have a new tune so i can rule that out... I was also considering the charge motion plates(i have no experiance here) and i am going to rule those out since there gone now.
Thanks for the Imput.. I will look at the fuel pump next
Kirk
Thanks for the Imput.. I will look at the fuel pump next
Kirk
10-24-2010, 12:26 PM
#8
6th Gear Member
Fuel pump TSB
https://mustangforums.com/mustang-ts...NG-CRUISE.html
The symptoms can be going WOT while cruising, stopping to pay a toll then accelerating aggressively; any acceleration after a steady cruise which allow the air bubbles to pass thru the system.
https://mustangforums.com/mustang-ts...NG-CRUISE.html
The symptoms can be going WOT while cruising, stopping to pay a toll then accelerating aggressively; any acceleration after a steady cruise which allow the air bubbles to pass thru the system.
Last edited by Nuke; 10-24-2010 at 12:28 PM.
10-24-2010, 12:53 PM
#10
2nd Gear Member
Thread Starter
Join Date: Sep 2009
Location: arkansas
Posts: 224
Its been happening for quite some time, i just put the charger(m90) on yesterday but haven't got my tune yet, VMP is working on it, should be here this week. If it still persists i will check the fuel pump.
