Can anyone tell me what the fuel pressure should be (40lbs ?) on a 2.5 AT Sub Forester. Any hill I hit the power drops to nothing and the cruise control shuts off (which I understand, it is suppose to) Also does the fuel pump come out in a door beneath passenger side rear seat?
Any engine codes being shown? Any misfire issues?
There are many reasons why a Forester can lose power - MAF sensor, crankshaft position sensors, air leaks, knock sensor, EGR valves, throttle position sensors, etc; what in particular is making you zero in on the fuel pump? I'd suggest looking at the MAF first - it's easier to get to, and if it just needs a cleaning, a $6 can of MAF cleaner is in most budgets. If it needs replacing, it's a few hundred, but junk yards will have them.
The fuel pump is accessed via an oval hole in the floor - the right rear of the luggage compartment, so just behind the passenger side rear seat. Fuel pressure should be 33-40psi, measured just after the fuel filter in the engine compartment.