Noise from fuel pump
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- G-Private
- Posts: 6
- Joined: Sat Jan 20, 2018 3:53 pm
- Location:
Noise from fuel pump
The last few times I have started my 68 A1 I get a constant tapping/ knocking noise from my in tank fuel pump. Any ideas or is the pump telling me it is ready to check out. Thanks in advance.
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- G-Sergeant
- Posts: 33
- Joined: Sat Mar 07, 2009 9:27 am
- Location: Northern NV
Re: Noise from fuel pump
Does it happen when you turn the switch on? As in before the engine starts?
It makes a tapping noise during normal operation. You normally don't hear it when the ign switch is turned on because of the oil pressure safety switch. If the fuel pump is running without the engine running, the oil pressure safety switch isn't working properly.
It makes a tapping noise during normal operation. You normally don't hear it when the ign switch is turned on because of the oil pressure safety switch. If the fuel pump is running without the engine running, the oil pressure safety switch isn't working properly.
1985 M1010
1986 M1009
1962 Ford M151A1
1967 Stevens M416 Trailer
1986 M1009
1962 Ford M151A1
1967 Stevens M416 Trailer
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- G-Private
- Posts: 6
- Joined: Sat Jan 20, 2018 3:53 pm
- Location:
Re: Noise from fuel pump
When I turn switch on all quiet engine starts right up then the the tapping starts. Turn engine off all quiet on the western front as they say.
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- G-Lieutenant General
- Posts: 5909
- Joined: Sun Mar 19, 2006 10:04 am
- Location: Pemberton, New Jersey
Re: Noise from fuel pump
Perfectly normal, That is how you know it is working.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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