beebone

Curious to know, did you guys hear any whistle sound under the in the area around the AFM? Its actually under the diverted valve.

I checked the IC boot, idle adjustment screw, vacum hose to diverted valve got no leak. So anymore hoses around that area to find any leakage?!?!? Thx!

beebone

Some info shd be indicate clearly, I hear the whistle when idle, it seems like the air blowing out somewhere around there. No power lose, boost well.

shiners780

Did the vac hose that attaches to the nipple on the bottom of the AFM come loose?

ramius665

You mean the throttle body?

beebone

Is there is hose connected to AFM?

beebone

The whistle is louder near the AFM, TB is fine.

spyder348

there is no vac. to the afm. vac. hose goes to small port on bottom of throttle body. im thinking thats broken or came off.

shiners780

Yes. Parts is parts............

beebone

Just checked the parts diagram, no vac hose running thru the AFM. Thx, i will check the vac hose of the TB.

beebone

Is there any hoses? Can u show me? Tx!

shiners780

There is a nipple on the bottom of the throttle body. The vac line tends to get brittle from the heat and pop off. You can see the nipple here, I have capped it off (with the yellow zip tie) since I don't use all my vac lines. Just check to be sure the vac line is still attached to that nipple.

Tom M'Guinn

Back in the old days, we used to spray starter fluid at suspected leaks. When the idle goes up, it means you found the leak. I presume there are multiple federal and state regulations prohibiting this practice these days, so proceed at your own risk.

Ian Carr

stock diverter valved? Could have a ripped diaphragm then..

beebone

Oic. Is it the vac hose to purge control valve? I deleted the purge system.

beebone

Its Forge diverted valve. I will draw a vac diagram.