Buzzing AFM
05-12-06, 08:48 PM
#1
Eats, Sleeps, Dreams Rotary
Thread Starter
Buzzing air-fuel meter
Does anyone have any idea as to why an AFM (or the intake as a whole) would buzz after a certain RPM?
Mine does after 3800 RPMs, and it's loud enough to be heard from inside the car (with the hood closed, and while driving)...
No, it's not just vibrating on something. The buzzing noise is coming from the inside.
I've also got a bit popping noise, despite the fact that my timing seems to be fine (the leading, at least), lots of low-RPM, low-throttle hesitation, and not much power. It's not popping as much as it used to, but I'm still wondering WTF the buzzing noise is since it's coming from the same place.
Perhaps it's a vacuum leak?
Mine does after 3800 RPMs, and it's loud enough to be heard from inside the car (with the hood closed, and while driving)...
No, it's not just vibrating on something. The buzzing noise is coming from the inside.
I've also got a bit popping noise, despite the fact that my timing seems to be fine (the leading, at least), lots of low-RPM, low-throttle hesitation, and not much power. It's not popping as much as it used to, but I'm still wondering WTF the buzzing noise is since it's coming from the same place.
Perhaps it's a vacuum leak?
Last edited by Valkyrie; 05-12-06 at 08:50 PM.
05-13-06, 03:15 PM
#5
Originally Posted by Valkyrie
Because that's where the noise seems to be coming from
05-13-06, 03:41 PM
#7
don't **** with my zoom
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i have in idea????? on your throle body you should have a senser it looks like a botton on a det cor if you don't have this the car cant sense when the gas pedel been let go and your rpms slame down causing it to make a noise and a loud pop on your exhaust. pleas forgive spelling
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05-13-06, 03:49 PM
#8
Eats, Sleeps, Dreams Rotary
Thread Starter
Originally Posted by classicauto
"Seems" isn't quite good enough to make an educated guess, what exactly is this buzzing? like a high pitched squeal? I have had relays under the hood buzz before, but that was during a turnsignal swap between series 5 and 4....
From inside the car it sounds like the warning buzzer, except at half the RPMs, and less than half the volume, but when you listen from under the hood, it sounds like something is vibrating metal-on-metal, coming directly from the area of the AFM.
06-02-06, 04:57 PM
#9
Eats, Sleeps, Dreams Rotary
Thread Starter
Update!
It turned out to be coming from the air relief silencer hose...
Apparently there's someone else who had the same thing happening.
No idea how to fix it though...
It turned out to be coming from the air relief silencer hose...
Apparently there's someone else who had the same thing happening.
No idea how to fix it though...
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