What color is the smoke? Black - running rich. Bluish - buring oil. White - burning coolant. When you smell the gas, it is inside or outside the minivan? Back of the car or near the front?
i had a fuel leak
exhaust leak or a possible fuel line leak
too much fuel (unburned) getting into the exhaust. could be your oxygen sensor or catalyst converter. less likely, a leaking fuel injector
If your exhaust pipe is clogged, it can cause a buildup of exhaust gases in the engine, leading to reduced performance and efficiency. You may experience symptoms such as decreased acceleration, rough idling, or a strong smell of gasoline. In severe cases, a clogged exhaust can cause engine overheating and even engine damage. It's important to address a clogged exhaust pipe promptly to prevent further issues.
Ur exhaust....
I was told that this might be the EGR Valve either is clogged or going bad.
No. have exhaust checked/repaired
Bad catalytic convertor. Egg smell is a dead giveaway.
Take a second, lightly sniff gasoline fumes before its been burned, then compare with exhaust fumes, and see which you are smelling. Exhaust fumes you'll naturally smell around an idling car. unburned gasoline could be the result of an improperly set carb, mixing the wrong amounts of fuel and air, leaving you with unburned gasoline that is boiled, evaporated, and spit out the exhaust. Too much evaporated gas turns your exhaust black, so ive been told, so there could be a sign.
don't ever smell your car's exhaust.
You can smell exhaust because your exhaust pipes and exhaust system has worn out. As a result, the exhaust and carbon monoxide it contains leaks inside the van. Soon, it will not be a problem because the carbon monoxide will have killed all of you.
2 most obvious signs of exhaust leak are noise and smell of exhaust fumes