Quote:
Originally Posted by NYC BRZ
So i got my 2nd pump yesterday. This is after Subaru told my dealer to wait almost 2 months after i reported the repeat failure after the 1st replacement took a crap after 500 miles. Subie claims repeat failure is rare which this forum has debunked.
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They replaced the pump with the same pump, so no real shocker that it came back. I would suggest not having it replaced again, as it's pretty clear at this point it's a waste of both your and the dealers time, plus the risks of having a botched install.
Quote:
Originally Posted by Surakusa
I ordered my new pump in October??? I forget... Still haven't received it... So I am still on the original HPFP, but it appears that after 8k miles... The chirping has stopped for me... Now this could be that it is because of the winter blend that gas stations offer... I go to cheap fuel places too just to debunk the Exxon or Shell Station claims... I get my gas at 7/11 93 octane. I do not use any additives. I wouldn't be surprised though if it comes back when it starts getting warmer and gas stations switch to the summer blend. -.-
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Probably a combination of all of the above. The chirping only really exhibits itself in high-heat situations with certain fuel types. Since it's cold out and you're using different fuel in the motor, you're changing the two known factors for the chirp to exhibit itself. Also, as mentioned above, the replacement pump is (currently) the same part and there's very little chance it will reduce the chirping.