It did not turn over on about 3 trys in the past week, but second try it does. I also notice idle is rough, upon starting on occaision it speeds up and when I hit the gas pedal it evens out. Also don't know if its related but when I'm in stop and go traffic I notice a increase/decrease whirring noise from the engine which I don't remember in the past.
From the way you are describing your problem it seems to me that your fuel pump is in the process of dying. The whirring noise is as if the pump is gasping for life. Your problem sounds like a fuel delivery problem. If you take a preasure test of pump you may find that you need a new pump. Good Luck Friend.
SOURCE: Whirring noise from the front of car as you drive.
I would first rule out the possibility of a "rough" tire making the
noise. You can move the two front tires to the rear of the vehicle and
see if that changes the noise any. If it does, you might have a worn
tire that needs replacing or a tire that has worn unevenly and should
be rotated and balanced more often....
Good luck..
SOURCE: 2002 outback engine problem
looks like you need a good tune up its a little early for this engine but i have seen alot of bad plug wires this year. so at least plugs and wires.
i think this should cure your problem
later paul
SOURCE: 2004, 6 cylinder outback, engine idle speed
We bought our H6 used under warranty and had the problem the day it was delivered. Brought it in to the dealer and the diagnosed it as the throttle position sensor. It is an electronic component that works in conjuction with the fuel delivery system and it is faulty, it cannot tell what position the gas pedal is in, and therefore is randomly picking power settings.
We had it replaced, and never a problem since.
There are other possibilites to your problem, and this was our solution.
Hope that helps.
SOURCE: 1995 impreza starts but low rough idle
Sounds like the TPS (throttle position sensor) at the throttle body there is a black box on the opposite side to the cable mech, looking at it from front of car place a multimeter into where the 4 wires enter. between pin 1 (nearest to you) and pin 2 when the throttle is closed (no foot on the gas) it should read 5volts if not losen the 2 screws that lock it (this requires a very long screwdriver) and twist it until it reads 5v.
SOURCE: On my 2005 subaru legacy outback 2.5l replaced
If I understand you correctly, you feel a vibration it the brake pedal when you apply the brakes. Is that correct?
Have your brake rotors re surfaced; they are warped.
"engine makes cavitating noise" ....what does this mean?
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