why would a 87 ranger back fire like a shotgun?
rpms don't seem to matter. speed don't seem to matter, but the gas peddle becomes unresponsive and it back fires. it looks like the muffler is trying to explode from the inside, and it blows flame out the tail pipe. sometimes i can rev out of it after a few minutes. sometimes if i let it die i can give it a few and it will start. i think it has something to do with air or gas but i don't know where to even look. any ideas?