There is no bleeder valve in the heater system of that vehicle.
Locating on a 1998 prizm - fine idea
where is the heater control valve
It doesn't have one.
Like most cars. The heater control valve is located inside the closed compartment with the heater core and the and the AC condenser. It is a door flap that seperates the heated air from the outside air, or the AC air.
The bleeder is located at the clutch arm on the bell housing. There is a fluid line going from the master cylinder to the clutch bleeder. This metal line has flexible hoses at either end. Follow this line down to the front of the engine just about in the middle and you'll find the bleeder valve.
You don't have a heater control valve for this truck.......
I am looking for the same thing, but 2001. My pathfinder getting overheat after about 10 minutes of driving, however when it is idling on parking the temperature stays perfect. I found one thing that look like a bleeder valve in 2001 pathfinder. It is located right behind the engine, look like a straw with a rubber cap on it.
heater is not getting hot
The "Related Question" below is an extensive discussion on the 1999-2003 temperature control valve / heater control valve. It is likely the information will be similar to the 1997 / 1998 Windstar
The heater control valve is mounted on the engine side of the heater and evaporator box which is located on the passenger side of the engine compartment. It will have at least three hoses connected to it and one vacuum line. It kind of hides underneath the a/c accumulator.
on a 1998 Pontiac gan am ,they do not have a pcv valve.
were is the egr valve located on a 1998 infiniti i30