Originally Posted by Que89YJ
TrailnYJ Please fill out your profile. I see the info at the bottom of the first post but it is a pet peave with a lot of people here.
The backfire word gets thrown out on the forum real quick and it drives me nuts because it immeadiately means there is a timing issue. The backfiring should mean you have the cylinder firing through the throttlebody and the exhaust if it is real backfiring.
You are one of those guys! LOL
I am one of something at least
Backfiring isn't ALWAYS timing. It is definitely timing if it is a constant backfire, Either from the intake or exhaust and it could be spark timing or valve timing.
If it is intermittent and accompanied by a sudden loss then return of power and the backfire comes from the tail pipe then it is most probably in the primary ignition circuit. Maybe call that external combustion since it is technically going through the system in the right direction?
It COULD also be a symtom of bad valves if it is coming out of the intake.