After my slow a$$ LG4 has been warmed up, I start hearing a buzzing noise. It makes my car sound like an 88 Camry. My dad said it was the air pump. Any other ideas? Thanks.

 

Is the buzzing coming from under the dash, if so, that is your relay module, it buzzes when ever the battery isn't charging the way it should, is your voltage meter reading low.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
UNDERDRIVE PULLEY
ACCEL HEI DISTRIBUTOR
2:73 GEARS

 

Or else when you've grounded the positive wire to the choke onto the intake manifold and blown the 20amp fuse... I have a box of them in my console just for that reason

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

Does the noise occur only at idle, or at all speeds?

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Later,
Vader
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"What a Day..."
Adobe Acrobat Reader

 

It occurs at all speeds after the car has warmed up. The sound is not coming from under the dash. Thanks.

 

Does it sound like it might be from the transmission?

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Later,
Vader
------------------
"What a Day..."
Adobe Acrobat Reader

 

I get the buzz from the tranny sometimes...I've been told its some sort of pressure oscillating valve...any truth to this?

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1991 Firebird Formula
305 TPI,Auto,Custom 3" Mandrel bent I-pipe, Flowmaster 80 series muffler, 3" hi-flo cat, Accel Cap & Rotor,Taylor Spiro Wires,Bosch Platinum Plugs, K&N Filter, Grant GT Steering Wheel, 5% Rear tint, Pontiac Windshield Decal, Fresh paint

Former owner of an 88 2.8 Firebird....RIP

 

I don't think it's from the tranny, because I hear it when the car is at idle on park, after the car has warmed up. Thanks.

 

The Problem is your fans tighten them down there knocking against a metel piece from your ac or your radiator

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1987 IROC-Z
G92, LB9 305 TPI, 3.23, Bright Red with Carmine Interior, Pioneer DEHP47DH CD deck.2 JBL DS645 4*6 (F).. 2 JBL DS965 6*9 (S).. Soon to be 335 or 350 TPI...