I have a 2005 Mustang GT Convertible, 4.6 V8, 106K miles, automatic. Only modifications cold air intake.
when driving at 40-45MPH the overdrive seems to jump in & out. 50 and over nice and smooth, or shutting off overdrive everything fine shifting. Anyone else have this? Is there a sensor or something that would cause this or is this a big transmission issue? Thanks for any help. Steve