Re: mustang gt 2000
When your turn your car on the green o/d light is not lit. This means overdrive is engaged, so you have that 4th overdrive gear engaging for lower rpms and better fuel efficiency. If always defaults to being on.
If you press the button and the light is lit up on your dash, then the o/d is turned off, or not engaged. Your transmission will basically act ike a 3spd and won't engage that 4th overdrive gear.
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.