Hi, it will tach thru all gears from a dead stop but just won't down shift at cruise or any other speed, any ideas? Thanks Chris

Put a scanner on it. Could be tps ( throttle position sensor). Could be too much carpet under pedal. Just for kicks check fuses.
mike

Mike, thanks for the reply after reading your post I knew exactly what the problem was and have to say I am a little embarrasted, 3 weeks ago I put a set of Catch All floor mats in my wifes rig and hadn't driven it untill last night and thats when I noticed the problem, to make matters worse I gave her rig a trans service yesterday before driving it so you can imagine what was running thru my head. :eek: Needless to say problem resolved.Well back to the Barrett Jackson auction, once again THANK YOU . Chris Dickinson