humming from fuel pump?
#1
humming from fuel pump?
bought an 06 SS/SC last week, and from the day i test drove it and almost every day i drive it, I hear this humming or on/off sequence of humming coming from what I believe is the fuel pump. I don't have any CEL or noticeable problems in the car, but I don't want to be charged for a mechanic looking around for an hour. Is this a thing? or what else could it be?
#3
I didn't hear it when i turned the key, but I did when I turned the key after a drive to the store. it wasn't loud on the way there, but I heard it as I parked at home with the car still on.
does this sound normal? I would never think it has a custom pump, as the car is bone stock even down to the intake. but then again I don't know the previous owner
does this sound normal? I would never think it has a custom pump, as the car is bone stock even down to the intake. but then again I don't know the previous owner
#4
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iTrader: (2)
I would think you would have heard it both times. I'm not sure how long it takes for the system to bleed back off (10 minutes maybe) so I don't know how long it had been sitting when you did it the first time.
My car is bone stock, minus the air box mod, but I changed the pump for a walbro because it would sputter sometimes on start up if I didn't let it fully prime. Hasn't done it since I swapped it out.
If you only hear the humming sound when driving maybe it's a wheel bearing??? You could jack the rear up and spin the wheels to see if it makes a growling noise.
My car is bone stock, minus the air box mod, but I changed the pump for a walbro because it would sputter sometimes on start up if I didn't let it fully prime. Hasn't done it since I swapped it out.
If you only hear the humming sound when driving maybe it's a wheel bearing??? You could jack the rear up and spin the wheels to see if it makes a growling noise.
#8
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iTrader: (2)
So the car is running in the vid? I really don't know what that is. It's weird that it changes tone so much. The only thing that I can think of that's "running" in the back with the car running would be the fuel pump. I wonder if you hooked up a fuel pressure gauge if it would fluctuate with the tone changes. If so I would say it's your fuel pump and something is wrong with it.
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