Chrysler Repair: 2000 2.5 V-6 hard starting, screwdriver blade, penetrating lubricant

Question
my 2000 sebring has intermintent no start but cranks ok code was cam pos sensor i put a a1 rebult unit plus a complete tune up still same problem some times it will start and run perfect other times it will try to start only after the ign key is being released from the start position and after a lot of stumbeling and putting it will run an no codes come up any ideas

Answer
Hi Rich,
The first thing I would do is check the mechanical function of the egr valve which is located along a pipe that runs from the left exhaust manifold (on the side of the engine facing the front of the car) to the intake manifold area (where the incoming air in the large rubber tube enters the throttle). That valve is metal and has a round fitting with a vacuum hose attached, mounted on the top of the valve, and the round part is attached to the main body of the valve by a sort of saddle.  Inside the open saddle you will see a metal rod (with a slot) that connects the round top fitting to to the valve body. That rod is a stem on the valve and it is supposed to go in and out in response to the engine vacuum which varies with RPM and throttle opening (gas pedal position). Take a spray can of WD-40 or other penetrating lubricant and spray the stem where it enters the valve body and then use a regular screwdriver blade tip inserted in the slot to lever the valve in and out to try and free up its motion. Also check all the rubber vacuum hoses associated with the valve and a nearby vacuum solenoid valve. If the valve seems to open (against the action of a spring) and close firmly by the spring action when using the screwdriver blade to facilitate the motion, then you should be able to now start the engine. You can, once it is idling, check that the valve stem moves when you rev the engine from idle to 2500 rpm and back to idle. If it still won't start, then removing and cleaning the interior of the valve, or buying a new one if it seems too crudy and corroded inside, is the next step to getting the engine to start. In the absence of any code this is the best approach to getting the car to start.
Roland
PS I saw your question in the "pool" and so wanted to share this information. Use the 'thank/rate' tab to get back to me if you need a follow-up, without having to wait for me to be 'available'.