I smell gas when i changed the plugs whats wrong

After you changed ONLY spark plug wires?

I would say you failed to mark them before
you took them off & make a diagram or have
reference material & you put the wires on wrong
& now you have cylinder misfires & unburnt fuel
out the exhaust

you for got to change the spark wires 1 by 1,
ooops. .
now the firing order is wrong.
which engine is it, of the many.??????

Sounds like a cracked cylinder head...

try running some fuel systems cleaner in your gas. or clean the throttle body

If you are backfiring you should check your firing order... If you have had your Plugs and wires replaced recently then it may have been installed wrong.. also try changing your fuel filter.. or changing the spark plugs

Sounds like a fuel leak. Check the lines from the tank to the engine. Check the injectors. Check the fuel rails.

If you're smelling fuel, it's not getting burned. Something wrong with inginition. Examples, timing is off, need tune up, wires are wrong on truck, and more.

Well if you start your car and its dieing at a stop sign. That usually means you have a bad alternator. Your alternator is wat charges the battery when the car is on, and the more you eccelerate the car, the faster the belt spends on the alternator and the more juice is pumped to the battery. So I would have your alternator checked out. Im pretty sure thats why your stopping at stop signs. As far as the smoke and the smells gassy. You have t remember its an older carborated truck, so its going to smoke out of the exaust and its going to run a little rich, which is why your smelling gas. Now you much determine if its smoking to much and your smelling to much gas. Try having a tune up done on the truck. Spark plugs, oil change, air filter change and if your still having those issues take it to a muffler shop and have them check the catalic converter

HTML clipboard If you can smell gas ONLY when the engine is running, then the gas didn't get burned completely. It could be the combination of the computer, oxygen sensors, and/or catalytic converter is going bad. If you could smell gas when it's parked, you might want to take it to a mechanic to have your gas line checked for leaks and for pressure test. Here's a website that talk a little about gas smell www.mycarsmellsbad.com good luck.

Possible loose gas cap, or fuel leak, check under the car very well. Is the car starting hard after sitting?