No you do not! th egr valve is located just under the throttle body. there are 2 10mm bolts holding it in, you just need to remove air intake to the throttle body! it is directly under it!
The EGR Valve on the 1996 Mitsubishi Galant is located underneath the Exhaust Manifold.
Replace the heater control valve motor, a dealer part, costs around $166.00.ish
The best way to fix an expansion valve for the A/C system is to replace it. of course then you have to evacuate and recharge with freon.
Expansion valve is located on the A/C Evaporator Core. Most of the times you have to remove the whole dash to reach it/ replace it. Good luck.
one per valve
The strainer valve on the Mitsubishi Galant 2004, 2005, 2006 models is located next to the engine manifold.
Attached to the intake manifold
10 in 10 ex
The EGR valve, on your 2005 Mitsubishi, is located beneath the air cleaner. Remove the air cleaner housing. The valve should be visible and labeled.
on the upper left side of youre firewall
The PCV valve on the 99 galant is the piece of plastic shaped like and L on the top of the engine manifold. It has a piece of tubing going from the valve to the intake. You can easily just pull it out from manifold,take tubing off and replace with same PCV valve. then put everything back theway you found it.
http://www.scribd.com/doc/6382741/Mitsubishi-Galant-2003-Systeme-de-Chauffage-Et-Climatisation- check section 50-40 AlexR