Auto Transmission Issue Mustang 2011 GT5.0
03-03-2011, 08:41 PM
#1
Thread Starter
Join Date: Mar 2011
Location: Texas
Posts: 10
Auto Transmission Issue Mustang 2011 GT5.0
Purchased 2011 GT 5.0 had 2010 GT love both vehicles, finding that the transmission does not seem to be in sync. Find that if i punch it and push accelerator to the floor board it revs real high and at about 60mph seems like there is no more torque or power.
In sport mode seems better although still seem to rev extremely high and seems to disengage.
I had a loaner 5.0 for a week prior to receiving mine and with traction control on seem to go like a rocket, never worried about what mode this vehicle was incredible. Took to the dealer and of course they never found anything wrong.
Did a second test by putting in sport mode try fish tail from station position and vehicle starts to go and then just revs high and disengages.
Look forward to any feedback...................
In sport mode seems better although still seem to rev extremely high and seems to disengage.
I had a loaner 5.0 for a week prior to receiving mine and with traction control on seem to go like a rocket, never worried about what mode this vehicle was incredible. Took to the dealer and of course they never found anything wrong.
Did a second test by putting in sport mode try fish tail from station position and vehicle starts to go and then just revs high and disengages.
Look forward to any feedback...................
03-04-2011, 06:21 AM
#2
Purchase a SCT tuner with a tune from Steeda, Brenspeed or Bama and it will make your auto shift like a raped ape. I had a Brenspeed tune for my 05GT auto and with that tune, the car would chirp 3rd gear. It is like a night and day difference between the stock tune and a aftermarket tune.
03-04-2011, 07:15 AM
#3
Thread Starter
Join Date: Mar 2011
Location: Texas
Posts: 10
Purchase a SCT tuner with a tune from Steeda, Brenspeed or Bama and it will make your auto shift like a raped ape. I had a Brenspeed tune for my 05GT auto and with that tune, the car would chirp 3rd gear. It is like a night and day difference between the stock tune and a aftermarket tune.
03-04-2011, 12:32 PM
#5
Mish-ogynist
Join Date: Nov 2007
Location: Helena, MT
Posts: 3,780
Nothing can void your warranty. The modification you did would have to be proven to have caused the issue in order for them to not cover the repair cost.
Just do an intake+tune at the same time
you'll like it 
Just do an intake+tune at the same time
you'll like it
03-04-2011, 12:59 PM
#6
Join Date: Jul 2010
Location: TN
Posts: 33
Purchased 2011 GT 5.0 had 2010 GT love both vehicles, finding that the transmission does not seem to be in sync. Find that if i punch it and push accelerator to the floor board it revs real high and at about 60mph seems like there is no more torque or power.
In sport mode seems better although still seem to rev extremely high and seems to disengage.
I had a loaner 5.0 for a week prior to receiving mine and with traction control on seem to go like a rocket, never worried about what mode this vehicle was incredible. Took to the dealer and of course they never found anything wrong.
Did a second test by putting in sport mode try fish tail from station position and vehicle starts to go and then just revs high and disengages.
Look forward to any feedback...................
In sport mode seems better although still seem to rev extremely high and seems to disengage.
I had a loaner 5.0 for a week prior to receiving mine and with traction control on seem to go like a rocket, never worried about what mode this vehicle was incredible. Took to the dealer and of course they never found anything wrong.
Did a second test by putting in sport mode try fish tail from station position and vehicle starts to go and then just revs high and disengages.
Look forward to any feedback...................
Are you leaving it in drive or shifting it manually?
Sport mode will cut power if you get sideways past a certain point, that is normal.
03-04-2011, 04:30 PM
#8
Thread Starter
Join Date: Mar 2011
Location: Texas
Posts: 10
Ok so if I floor it firstly I get these hesitations, that seem like it does not know what gear it should be in, then it gets going but after I get to 60-65 the accelerator is flat on the floor board and the revs are very high and there is no more power, I literally feel the car is out of power. Now if i start out gradually and let it develop then the accelerator seems firm and has lots of opportunity to crank it up. I did have a 5.0 for a week prior to receiving mine and I never even messed with traction control the car just shot off like a rocket. I feel i need to drive another 5.0 at the dealership to feel if its the same. often i find coming on a freeway ramp and i crank it the car just goes into this massive high rev that i think causes it to loose power.............I just dont know.
03-04-2011, 04:32 PM
#9
Thread Starter
Join Date: Mar 2011
Location: Texas
Posts: 10
03-05-2011, 12:06 AM
#10
Join Date: Jul 2010
Location: TN
Posts: 33
Ok so if I floor it firstly I get these hesitations, that seem like it does not know what gear it should be in, then it gets going but after I get to 60-65 the accelerator is flat on the floor board and the revs are very high and there is no more power, I literally feel the car is out of power. Now if i start out gradually and let it develop then the accelerator seems firm and has lots of opportunity to crank it up. I did have a 5.0 for a week prior to receiving mine and I never even messed with traction control the car just shot off like a rocket. I feel i need to drive another 5.0 at the dealership to feel if its the same. often i find coming on a freeway ramp and i crank it the car just goes into this massive high rev that i think causes it to loose power.............I just dont know.
I do think there is something wrong with your car, just don't know where to tell you to look yet. One thing you can check, open the airbox and remove the filter and look in there to see if thee is something clogging it up. I dug some leaves out of mine, i saw a post where a guy said an empty cigarette pack was in there.