I'm on the process of doing this job myself. The IAC motor/valve is located directly above the throtle body where the gas pedal cables attach. You will have to remove the cables bracket with a 8mm, three bolts. Then use a torx bit to remove the two screws on the IAC. BE CAREFUL! I snapped both my screws off and had to drill out and re-tap the holes. Good luck!
Is anyone on line to help me with this question? Where is the fast idle thermal valve in a 1997 Chevy astro van located?
The PCV valve on a 1999 Astro should be located on top of the valve cover. It plugs in and can be easily replaced.
Inside transmission pan beside valve body.
The 1997 Chevrolet Astro EGR valve is located on the top of the engine valve cover. The EGR valve can be access from under the hood. You will not need to remove any engine cover.
The idle air control valve is located on the throttle body, and the EGR valve is located on the intake manifold.
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.
It does not have a PCV VALVE, But it does have a vent tube on the very top of the transmission. It is hard to see but it's there.
The heater control valve (temp blend door) is located behind the dash assembly. The dash assembly has to come out to gain access to it.
In the middle of the drivers side valve cover.
where is the canister purge valve located on a 03 chevy venture
you remove the dog house and it will be on the left valve cover
It should be at the base of the throttle body.