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+--- Thread: Humming Noise With Key Turn On (/showthread.php?tid=1368)
Humming Noise With Key Turn On - rgreen - 01-18-2017
After I start my truck isx 871 prostar and cut the truck off and turn the key on. I can hear aloud buzzing or wining noise, it seem to become from IFMS but I am not for sure t. I have replace the gear pump about 3 weeks ago... Thank you in advance for your input!!!!!!
RE: Humming Noise With Key Turn On - hhow55 - 01-18-2017
The buzzing noise us you electric fuel lift pump.
RE: Humming Noise With Key Turn On - hhow55 - 01-18-2017
(01-18-2017 )hhow55 Wrote: The buzzing noise us you electric fuel lift pump.
Btw, the buzzing noise means it is working. Mine does the same.
RE: Humming Noise With Key Turn On - rgreen - 01-18-2017
(01-18-2017 )hhow55 Wrote:(01-18-2017 )hhow55 Wrote: The buzzing noise us you electric fuel lift pump.
Btw, the buzzing noise means it is working. Mine does the same.
I was going to say, I was will replace tomorrow but you said it means it working... Thank you!!!!
RE: Humming Noise With Key Turn On - Rawze - 01-19-2017
(01-18-2017 )rgreen Wrote: After I start my truck isx 871 prostar and cut the truck off and turn the key on. I can hear aloud buzzing or wining noise, it seem to become from IFMS but I am not for sure t. I have replace the gear pump about 3 weeks ago... Thank you in advance for your input!!!!!!
That would highly depend on what you are hearing.
Here is what a healthy electric fuel pump sounds like on a CM871. it is at 1:21 in the video...
RE: Humming Noise With Key Turn On - rgreen - 01-19-2017
(01-19-2017 )Rawze Wrote:(01-18-2017 )rgreen Wrote: After I start my truck isx 871 prostar and cut the truck off and turn the key on. I can hear aloud buzzing or wining noise, it seem to become from IFMS but I am not for sure t. I have replace the gear pump about 3 weeks ago... Thank you in advance for your input!!!!!!
That would highly depend on what you are hearing.
Here is what a healthy electric fuel pump sounds like on a CM871. it is at 1:21 in the video...
Thank Rawze that how mine sound.