Drill Noise
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Instructor
Joined: Nov 2008
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Drill Noise
Hi,
I have a 98 Vert that at times an electric motor kicks on under the hood. Sounds like a cordless drill running. It comes on then goes right back off. This occurs only occasionally. Any ideas what this is?
Thanks
I have a 98 Vert that at times an electric motor kicks on under the hood. Sounds like a cordless drill running. It comes on then goes right back off. This occurs only occasionally. Any ideas what this is?
Thanks
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
To me it almost sounds like the Air Pump (Smog pump) that comes on for a short while at first start up -
Other thing could be the fuel pump starting to whine - which will sound like a drill as well!
Does it sound like it is more right behind the drivers seat or more towards the front on drivers side?
Thanks,Matt
Other thing could be the fuel pump starting to whine - which will sound like a drill as well!
Does it sound like it is more right behind the drivers seat or more towards the front on drivers side?
Thanks,Matt
Drifting
Joined: Sep 2002
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From: South Florida
Does it get loud...kind of like a turbo? Are you hearing the sound from inside the car? Idler pulley or ac compressor bearing? Get a long screw driver put the tip to the different accsories and put your ear to the plastic handle. This will help you isolate the noise.
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From: Fresno California
It's the smog pump on my c5. It sure had me puzzled the first time I heard it. I was able to get out and open the hood when I heard it the second time. It was very easy to tell that is what it was with the hood up.
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
What you could do is pull the pump off and test it on the bench to see if that is the noise or have someone start the Vette and you stand outside of the Vette and see if you can pinpoint the sound!
But it sure sounds like the smog pump - mines sounds like that too, but I have mine set-up different for my blower set-up! (It is turned into a Vacuum pump while under boost, with a wire harness from Racetronix) I can hear it every time!
Thanks,Matt