* Location: Expect it to be somewhat centrally located on the intake manifold. The intake manifold is the large casting that sits atop the engine and distributes air to the cylinders. Look for something near the back of this manifold, but possibly closer to the middle.
* Appearance: The EGR valve itself is typically a small, rectangular or cylindrical casting. It'll likely have:
* A vacuum line connected to it: This is a small rubber hose.
* An electrical connector (sometimes): Some EGR valves have a sensor built-in requiring a connection.
* One or two ports: These are where the exhaust gas recirculation happens, one connecting to the exhaust system and the other to the intake manifold.
* Difficulty of Access: Due to its location on the back of the engine, reaching it might require removing some heat shielding or other components.
To locate it definitively:
1. Consult a repair manual: A Haynes or Chilton manual for your specific year and model Saturn SL2 will have diagrams showing the precise location and what the EGR valve looks like. This is the best approach.
2. Online forums: Search online forums specific to Saturn SL2s (like Saturn forums or general car repair forums) and look for pictures or discussions about EGR valve replacement or cleaning. Searching "1995 Saturn SL2 DOHC EGR valve location" should yield some results.
Remember, working on engine components can be dangerous. If you're not comfortable working on your car, it's best to take it to a qualified mechanic.
