The EGR valve is located on the rear drivers side of the engine on top, right behind the throttle body
The PCV valve is located under the MAP sensor on a 1990 Pontiac Grand Prix. The MAP sensor is in the upper plenum.
The EGR valve on a 2003 Grand Prix 3.1 Liter is located in the rear of the engine on the driver's side. The EGR valve will be connected to the exhaust pipe and is usually located near the end of it.
For my 1997 Grand Pri SE 3.8 it is located underneath the engine cover on the front of the engine near the fuel rail. It also has a evap air control valve at the rear thtaes up part of the circuit.
The heater control valve on your Pontiac Grand Prix is located behind the kick plate, on the passenger side of the passenger compartment. The heater control valve is near the heater core box.
Where is idle air control valve located on 2003 Pontiac Grand Prix GT, 3.8 liter 6 cylinder?
1997-2003
The Starter solenoid is located on the starter itself.
Center/ top of the Firewall.
http://macgp.clubgp.com/howto/pcv/pcv.html
Prost Grand Prix was created in 1997.
it is on the rear valve cover.very hard to get to..The pcv valve is not visible on a 3800 series II engine, which I presume you have in your Grand Prix, because it is located under the MAP sensor. You will find that at the front of the engine, where the serpentine belt is located. Unplug the connector to the MAP sensor and then you will have to unclip the sensor itself. You will then see pcv valve underneath.3For a 3800 normally asperated check out the following website for pics and instructions. http://www.scacgp.com/mods/gt_pcv.htm."G"
the Horn is under the passenger headlight.