1998 Chevy S10 Evap Purge Valve replacement.

Its right by the Distributor/Coil packs. Parts that makes the plugs spark and ignite fuel vapor, whatever it is. Your gonna need at least a jack, a flathead screwdriver, and a 13mm deep well socket or regular 13mm socket and an extension to get it out. Its a 13mm nut, 1 plug, and two hoses. Simple fix, just make sure you get the right part before you go to change it. Happy wrenching.