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humming noise from tb :? 

 

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 Post subject: humming noise from tb :?
Posted: Wed Dec 02, 2009 8:24 pm 
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Joined: 21st May 2008

Ride: ea falcon :|

Location: laurieton
NSW, Australia

hey guys hope someone can help for a few months now iv had a humming noise coming from the cold air induction. iv never thought much of it but it got the better of me yesterday so i pulled the air induction off at the tb to try and pin point it nd its coming from the tb its self :? i have no idea whats caused it but its at idle and intermittent. has this happened to anyone else or does anyone have any idea what it is because its quite annoying
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 Post subject: Re: humming noise from tb :?
Posted: Wed Dec 02, 2009 11:42 pm 
Getting Side Ways
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Joined: 8th Nov 2004

Ride: BA Falcon XR8

Location: Bunbury
WA, Australia

This is on your EA? I only ask as people get new cars and don't change their 'ride' details. If it's a BA/BF that's normal, as there is a stepper motor controlling the butterfly and do tend to make a bit of a humming noise. But if it IS the EA, could possibly be a d**k ISC valve?
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 Post subject: Re: humming noise from tb :?
Posted: Thu Dec 03, 2009 8:19 am 
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Ride: ea falcon :|

Location: laurieton
NSW, Australia

good spotting its for my el, i will update that now.. so the isc could be the issue, ill make a dummy gasket and see if thats the issue though it idles perfectly but that would be the most obvious issue.. thanks for the reply
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 Post subject: Re: humming noise from tb :?
Posted: Thu Dec 03, 2009 10:43 am 
Fordmods Junkie
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Joined: 5th Nov 2004

Ride: Kia Rio - 1.4L Auto

Power: 238 rwkw

Location: Westside
VIC, Australia

I've heard high pitched humming noises coming from EF/EL ISC motors before, because of the way the ECU runs them. Its kind of like that humming noise you get from street transformers or the high tension power lines.

Didn't seem to stop them working properly or anything, but it did happen every now and then.

Taking the intake off the T/B might just make the thing echo and seem louder than it actually is.
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