1990 Bronco II 2.9 fuel injection. Used to start right up. got harder to start but would run ok once started. Now have to open throttle a bit for it to stsrt and smokes alot and smells funny. Checked
Checked oil and was over full mark a lot and thin. Had been 1/8 in. above full mark. Drained over a qt. out and still 1/2 in. above mark. No water in oil and no water loss from radiator. No other fluid could get in oil but gas. How???