The previous owner bypassed the heater core and ripped out the heater control valve and the actuator. I am putting it back together and I got the valve part figured out, but I cannot find a diagram that shows where the vacuum tube from the actuator connects to on the engine somewhere.. Find out how to access AutoZone's Vacuum Diagrams Repair Guide for GM Full-Size Trucks 1988-1998. AutoZone's Repair Guides tell you what you need to know to do the job right.
The PCV runs from the valve cover to I have no idea a black thing that has a vacuum tube running out of the top. The vacuum hose coming out of the.. A detailed examination of all connectors, wiring and vacuum hoses can often lead to a repair without further diagnosis. Performance of this step relies on the skill of the technician performing it; a careful inspector will check the undersides of hoses as well as the integrity of hard-to-reach hoses blocked by the air cleaner or other components.