Ok here's the deal, I did a smoke test on my car and found my Vac leak in my EGR tube, Fixed that, passed inspection. Next day I start my car and it starts to squeal like a pig. I took my belts off cuz it sounded like a bad bearing and the prob was still there.

I noticed my oil dipstick was cracked and when I pulled it out the squeal stopped. I noticed that there is a lot of suction at the dipstick tube so I put a temp plug in it to test, and sure enough after a second it started to squeal again.

It only makes this sound at idle and not while under load. Is there suppose to be that much suction there? Is the dipstick suppose to be sealed? PVC? Valve seals? am I on the right track?

Edit: its a 99 GTP

I would think you need to replace your PCV valve. That would make sense...

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2012 Ford Focus SE Sport
2012 MINI Cooper Clubman

I have ADHD and drive a Focus. Ironically.
Although gold dust is precious, when it gets in your eyes, it obstructs your vision.

Yeah, you're getting a lot of crankcase pressure, and that is very bad. You'll blow out crank seals, rear mains, and all kinds of stuff. Replace the PCV valve, and you'll be good.

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One Big Ass Mistake America

New PCV seemed to fix it. Suction went way down and my Idle is back to about 750 rpm from about 900. Also my LTFTs went from being pinned at 16.4 to around zero again. I love cheap fixes. Thanks a lot.

Cheap and easy is the shit, let me tell you.

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One Big Ass Mistake America

Unless it's a hooker, then it's bad.

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'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

Meh, even that's up for debate...

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One Big Ass Mistake America

Yeah. I've seen what $15 can buy you in Vegas. It isn't pretty.... Fully clothed OUTDOORS there was a fishy smell...

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2012 Ford Focus SE Sport
2012 MINI Cooper Clubman

I have ADHD and drive a Focus. Ironically.
Although gold dust is precious, when it gets in your eyes, it obstructs your vision.

What happens in Vegas stays in Vegas. Except herpes.

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'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

what hippies don't stay in vagas there every ware

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

Is it a loud squeal?? I hear something on my car-- but I just replaced the valve 2 weeks ago. I'm hoping its a worn belt.

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OVERKILL
P4 Perilli Tires
ZZP Pacesetter Headers
Custom Cold Air
ALT 104
3.5MPS Pulley