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whining 2000 Legacy GT


brus brother

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Over the last 3-4 months, I have been noticing a whine which seems to > come from forward of the passenger compartment. Been trying to narrow > down the cause of this but the best I have been able to do is > determine that it only comes on when the engine is under load/open > throttle. If I'm driving on the freeway, it comes and goes as I > press/release the accelerator. While on cruise control, it also comes > and goes when the car is trying to accelerate uphill, etc. Am certain > it does not correlate to engine speed. If I release the accelerator at > 70mpg (and note that rpms stay high), the whine goes away immediately. > > Took it to the dealer but they have been unable to trace it. They hear > the same during the roadtest but when they had it up on the rack and > doing 40-50mph, cannot find the noise. > > My thoughts are that is has somehow to do with the fuel pump, > injectors, throttle and some bad grounding perhaps? Any other thoughts > or similar experiences?
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