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Old 09-24-2004, 04:19 AM   #1
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Default vacuum in the crankcase

read a few threads regarding "squealing" sounds, and this seemed to come up. so this is bad, eh? i took off my oil filler cap just for fun with the motor running, to see if my car "sucked." and it does. crap. so i guess the PCV o-ring is the first thing to check? any other suggestions?
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Old 09-24-2004, 09:09 AM   #2
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Default Re: vacuum in the crankcase

Quote:
Originally Posted by big_news_1
read a few threads regarding "squealing" sounds, and this seemed to come up. so this is bad, eh? i took off my oil filler cap just for fun with the motor running, to see if my car "sucked." and it does. crap. so i guess the PCV o-ring is the first thing to check? any other suggestions?
if your o-ring is there, start checking under the hood for broken or cracked vacuum lines. usually, they'll make a nice sucking sound...
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Old 09-25-2004, 02:00 AM   #3
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YUP, if you have vacuum present when removing the oil filler cap, you have a problem. Let us know what you find.
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Old 04-23-2006, 01:41 AM   #4
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Old thread revival...this is what I have.

I have a HUGE amount of vacuum in the crankcase of our 98.

Im pulling the Lower manifold off tomorrow morning, and hoping to find a broken Gasket.
Im also hoping this fixes the Vibrating PCV Valve issue.
(I already made sure both O-Rings were there)

If not then im open to suggestions.

C
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Old 04-23-2006, 02:13 AM   #5
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Start a new thread, please. This stuff could be outdated.
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