does some body here no how to replace or clean a fuel injuctor on the 2000 blazer 4.3 motor?

 

SEAFOAM fuel system cleaner. it's way better than any other. couple bottles of that should do it. check local auto parts stores, or local gm parts dept.

 

i did a compression ck and im afraid it goes a bit deeper than injectors, i have 0 compression in the #4 hole. ill take the valve cover off to make sure they are closing and go from there. maybe a burnt valve or bad cam lobe anyway thanks