I have a 2010 taurus. When I push down on the throttle, gas smelling white smoke comes from the exhaust and after a few seconds the rpms start to jump between 50 and 150.
There's no crack or leaking gasket that I can see and my dad says it might be the injectors.
I have a 97 taurus vulcan at 120k miles. Rpm will randomly jump to anywhere between 1000 and 2000, usually it jumps to about 1600 but it can be higher or lower. This is all while it's in park. It'll jump from regular of 800 to 900 to the above mentioned. In drive, if I let off the brake from a...