Chrysler Repair: 1995 Sebring hard to start; is it the fuel pump?, air fuel ratio, exhaust gas recirculation valve

Question
My 1995 Chrysler Sebring will start but out of nowhere it'll just stall out on me and then sometimes it'll start other times it'll turn but not start. If it doesn't start then if I leave it be for a little bit it'll start again or if I push sometimes it'll start other times it won't, I am nearly 100% certain that it is the fuel pump, I was wondering if you may have a diagram on where the fuel pump is located on my vehicle and if you have a step by step on how to change the fuel pump also?

Thanks

Answer
Hi Craig,
I would not jump to the conclusion that you have a fuel pump problem. Maybe you have a fuel mixture problem (air/fuel ratio) which I suspect is more likely the case. specfically I wonder if you might have an egr (exhaust gas recirculation) valve problem with the valve being stuck ajar which dilutes the mixture so much as to make it stall out when you try to start it. The 2.5L V-6 valve is checked as follows:
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.
So before discussing the pump I would recommend that you check your egr valve.
Roland