I noticed on the way back from dropping my friend off that my check engine light was on. I drive a 1993 Ford Ranger. What could cause this to go on and how do you fix it?
in this order is what id do...
check oil, water, dizzy cap, rotor arm, ht leads... and replace as necessary..
is it a turbo? do you hear a rattling or a tapping type noise?
I dont know the layout of your cars engine :S
You should consult your owner's manual.
I know that for my vehicle it has something to do with emissions, but I have a different vehicle.