[sb2f5marine69]

Dont have one. Put a ron morrison performance eliminator kit on it.

[ujslost]

I think its the mass air meter, when I had a pro-m mass air meter mine did the same thing. swapped to c&l meter and never heard the whistle again.
Could be CAI also

[lineumup88]

as far as you idle goes, swap out out your idle air motor and it that doesn't help try bumping your idle up to 850. sometimes when your idle is to low and you let off the throttle the iac motor sends the car into a surge trying to catch back up. i know it sounds stupid but it worked when i had that problem. as far as the whistle i have heard it on some and not on others and never found out what it was. good luck

[TurboLX]

when you put on a cold air intake, its gonna whistle because it is breathing that cold air and lovin it

[TurboLX]

its just something they do for some reason, my ol' 306 had a cold air intake and it whistled after i put it on

[B.A.M302]

The cold whistles because its sucking in so much air through the small screen holes of your filter that it causes that effect

[joe 5.0]

I think i found it


its on the bottom of the throttle bodywhere the linkage hooks up

the throttle plate where it meets the shaft

try this wiggle the throttle bracket back and forth and see if the pitch changes

let me know your findings

[cali 5.0]

y would it whistle, unless something is wrong with it, a whistle at idle doesnt sound normal unless its a super charger thts jus wht i think

[ujslost]

Originally Posted by lineumup88 as far as you idle goes, swap out out your idle air motor and it that doesn't help try bumping your idle up to 850. sometimes when your idle is to low and you let off the throttle the iac motor sends the car into a surge trying to catch back up. i know it sounds stupid but it worked when i had that problem. as far as the whistle i have heard it on some and not on others and never found out what it was. good luck

If you bump up your idle, you need to check the voltage on the TPS afterwards and make sure you adjust it back to .98 volts. Adjusting the throttle screw will throw the voltage off.

[joe 5.0]

forgot about this one

but i fixed the whislte

first replace all the upper gaskets intake -plenum tb to egr spacer and so on

then replace any vacuum lines around the intake

then clean all the carbon build up in the tb and egr

and bingo it gone

[ujslost]

glad you got it fixed

[onewinner]

HI I have a Holley systemax intake C&L 76mm with Holley 75mm throttle body and trickflow egr delete it does not wisltes.I had a Holley 70mm and a 70mm egr spacer and it wistled at idle and three grand.I think the egr spacer hole was making the wistle

that was my problem on my old set up. deleted the egr and that whistle stopped. got tired of people thinkin i had a supercharger it got in the way of me makin money ;^)

[vfast]

what intake are you using....if your using a stocker and use a 65mm you will have the whistle as the intake T/B opening needs to be opened up

[Kevin b]

Go on to BBK web site they tell you why it whistles. Does not hurt anything but sure can be anoying to listen to.