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Join Date: Dec 2019
Location: Connecticut
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fuel pump audible humming

For those with early cars, if that makes a difference, how much can you hear your fuel pump when the car is running? If you are using your stereo, you probably can't hear it at all, but I drive with my stereo off a lot. The pump makes a whirring sound, it doesn't sound bad, really. I can hear the sound change with the electrical load on the system, i.e. pulsing sound along with the blinkers. This doesn't seem to be alarming to me but thought I'd check on others' experience. I think the PO installed a new pump but likely not a high quality unit.

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1984 944 Zermatt Silver
1987 951 Flamingo Metallic
Old 12-12-2020, 10:19 AM
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Hi we have and 83 and can here the pump can't remember if i all ways could.
Old 12-13-2020, 01:46 PM
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curtisr
 
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I would find it impossible to discern from the rest of the background noise one gets while driving. Certainly when you start it up in your driveway it'll make itself known to you.
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1977 924 Guards Red (parted and sold)
1987 924s Alpine White (sold)
1987 924s Kopenhagen Blue (my Lowencash tribute track car -- sold)
1987 924s Garnet Red (currently becoming Lowencash II)
1982 928 Silver (sold)
Old 12-15-2020, 07:34 AM
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The pump should be encapsulated inside a rubber insulation sleeve. Perhaps yours isn't installed .properly and is transferring itself to some metal fitting our housing.
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3 944's, 2 Boxsters and one Caman S, and now one 951 turbo. Really miss the Cayman.

Some people try to turn back their "odometers." Not me. I want people to know 'why' I look this way. I've traveled a long way and some of the roads weren't paved.
Old 12-15-2020, 11:15 AM
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My car is dead stock and has no sleeve. If i remember right it is just clamped to a bracket.

Old 12-15-2020, 04:21 PM
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