Dear Ray and Tom my van is using way too much gas.I can smell gas at tail pipe and can feel the express pressure when it explodes in exhaust pipe.I changed plugs,wires,distributor cap and rotor and still exactly the same thing .It also floods out easy if i dont keep my foot on gas pedal at a stop.I …

Bad mileage and gas smell

the_same_mountainbike December 15, 2011, 4:55am 7

Gives whole new meaning to the term “secondary combustion”.

Hey, the cat converter can reach over 800F. A candle flame is, what, only 750F? A bunch of free hydrocarbon molecules surrounded by oxygen hits that and POP!