Hello all I have a question about a 2001 blazer xtreme 4.3ltr . My cousin had like a misfire sometimes while it was running . So we checked the spark plugs and determined they where in need of replacement . So we decided to do a full electrical tune up . Put new wires ,plugs,rotor,cap. The plugs are ac-Delco and they where gapped 0.050 . But the rad support said to gap them 0.060. So I gapped them accordingly. Well we replaced all that and now when we start the truck it backfires out of the exhaust . Strong fuel smell and blowing some fuel out the exhaust .
my question is what could be causing this problem? Should I have just left the plugs at 0.050 ?
any help will be appreciated for sure ty .
my question is what could be causing this problem? Should I have just left the plugs at 0.050 ?
any help will be appreciated for sure ty .