Throttle Dead Band and Trans Vibration
 

I have recently (two weeks ago) purchased a 2007 GS GT and have just returned from a trip to Vegas where I put 1500 miles on the car. A real shake down cruse. There are two problems that I have noticed that I will be bringing the car back to the dealer Monday to fix. I notices the problems shortly after picking up the car and told the dealer but he said get some more time on the car to really see whats going on. Does anyone have any insight into what may be causing the problems? I would like some additional information when I talk to the dealer again. Has anyone experienced the same?

Problem one is that there appears to be a significant dead band with the throttle. I have to push down the peddle about a inch before the engine/vehicle will respond. This has a significant impact on starting from a light, reversing out of a parking space, or accelerating out of a turn. It is not always safe to punch through this dead band each time I want to move out. I think the “Drive by Wire” throttle is not adjusted correctly. Its not a power lagging issue just that the engine does not go up in RPM untill the throttle is pressed down that 1 inch.

Problem two is a vibration at 1750 RPM in first. This vibration is only for a short time just before shifting to second. The vibration gets worst when the transmission gets hot or when pulling up a hill. I have the automatic.

Any comments I would appreciate.

Is there anywhere on the web where I could get a better understanding of how software controls all the functions in the 05 and up Mustangs? After looking at some articles in various Mustang magazines it appears that a lot of the features in the software are tunable if you have the right interface hardware and knowledge. I would really like to understand what is going on and maybe experiment with different settings.


Any direction on where to find technical descriptions on internal functionality would be appreciated