02 trailblazer 4200 vortec misfiring, sputtering?

SOURCE: Fac clutch doesn't comefree

I cant remember counter or clock wise but doesnt matter I believe it comes off counter clock. The easy way is if you have a air compressor and a air hammer. Take the flat bit place on large nut lightly hit the nut until it breaks free. If not take the largest wrench that fits good and safely tap it hard with a hammer , fast hard blow will break it loose. hope this helps

SOURCE: timing belt replacement?

check your manual it should have the inside,thanks robert b. most are 100.000

SOURCE: I own a 2002 Chevy Trailblazer with 4200 vortec

Do you know if the plugs were changed, a bad or broken plug will also cause rough idle and slow acceleration?

SOURCE: Have a #4 cylinder misfireCode

it can be most anything on # 4 cylinder. plugs, wires, coil, etc. good-day !

SOURCE: I need the specific firing

1-5-3-6-2-4 #1 cylinder is in front