The aftermarket fuel pump on my car has been noisy since I got it back in August. Usually, it just has a smooth but annoying high-pitched buzz, but recently it has sounded rough at times, like it's cavitating. My car still starts and runs fine, but does feel a little sluggish up hills. Today, I started my car hot and it sounded like I had a beehive in my trunk. Both pumps, I assume, were moaning atonally. I drove 15 miles or so this way with no ill-effects. By the time I got home the extra moan was gone. I think it's time that I finally check the in tank pump out.

My question: What do I do about the 2 hard fuel lines going to the pump? They're hard plastic, really, and look like they cannot be removed without cutting. I'd have no problem with that and then just splice it all back together with some 3/8" fuel line that I already have. I just want to make sure that there's not some trick that I don't know.

Fuel pressure checks out fine, fuel filter replaced 500 miles ago. I plan on looking for a used Bosch pump the next time I'm up in Waco at the PNP.

Thanks BB,
Charlie
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1985 244DL B230 M46 170k