LS1TECH - Camaro and Firebird Forum Discussion
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LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)
-   Generation III Internal Engine (https://ls1tech.com/forums/generation-iii-internal-engine-5/)
-   -   Very strong vacuum through oil fill tube (https://ls1tech.com/forums/generation-iii-internal-engine/1456869-very-strong-vacuum-through-oil-fill-tube.html)

twizted_creations 09-05-2011 09:36 PM
Any scoring in the cylinders? Spark plugs look ok?

fireburr 09-05-2011 09:40 PM
All spark plugs look fine and there is no scoring at all.

twizted_creations 09-05-2011 09:42 PM
My only thought would be a failed lifter if you have already checked pcv system.

fireburr 09-05-2011 10:08 PM
Thats what I'm thinking, ls7 lifters already on the way.

Nowhereman 09-05-2011 10:15 PM
Originally Posted by ls1 1990 VN (Post 15284920)
How did my ex wife get in there?
Some how, some way I knew an "ex wife" joke was going to get in here.:barf:
LOL

remauto1187 09-05-2011 11:25 PM
Originally Posted by Nowhereman (Post 15355014)
Some how, some way I knew an "ex wife" joke was going to get in here.:barf:
LOL
I'm curious....if she made that good of "vacuum" then why did he get rid of her?

Mine was useless.....she couldnt cook, clean or "make good vacuum"...seems like she forgot how to do anything...as soon as she got married. But then i heard it all came right back to memory...as soon as the judge finalized the prison release...uhhh i mean divorce! :pimp:

Nowhereman 09-06-2011 08:44 AM
Originally Posted by remauto1187 (Post 15355235)
I'm curious....if she made that good of "vacuum" then why did he get rid of her?

Mine was useless.....she couldnt cook, clean or "make good vacuum"...seems like she forgot how to do anything...as soon as she got married. But then i heard it all came right back to memory...as soon as the judge finalized the prison release...uhhh i mean divorce! :pimp:
Yeah, funny how that happens...LOL

frankmarroquin 07-17-2012 12:08 PM
Sorry for bringing this back up from the dead but was ever your problem?

JHMeza 04-27-2016 07:37 PM
Originally Posted by thirdgengta350 (Post 15288510)
Sounds to me like the PCV valve is stuck open, and that's the motor sucking air through the PCV tubes. Does the idle change at all when you pop the oil fill cap off?
My idle does change when I uncap the oil fill cap. I broke off the original PCV tube that tees on the back of the intake manifold so I recreated it using 3/8 PCV Hose I teed a hose that goes to the passenger rear valve cover and the rest of the hose all the way to the front to the lower passenger side port on the throttle body. I can hear a sharp vacuum sound sort of like a whistle. What can it be?


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