pcv valve

**LS1 oldtimer** · 10-31-2010, 04:39 PM

it's time to do the first oil change so i went to the auto parts store and bought all the filters the book showed. one item was a pcv valve. i know these have always gone in the valve cover but i don't see it on the ls1. where is it at?

**Firebirdjones** · 10-31-2010, 04:51 PM

You'll find it in front of the intake near the passenger side head. It's actually stuck inline of the large 3/8 vacuum hose running through that area.

**LS1 oldtimer** · 10-31-2010, 05:06 PM

thanks!!!! just changed it. i would have never found it, you can't even see it with the hoses connected to both ends. thanks again.

***SMWS6TA*** · 11-02-2010, 01:30 PM

have you followed the line all the way back? I ask because they usually crack at the point just behind the intake manifold. there is a splitter there and that is usually where it breaks.

**WhiteHawk489** · 11-02-2010, 06:02 PM

i recently changed mine for the first time and it took me a sec to find. when i did mine the new one didnt seem to have a valve. i could look straight thru it. is that normal? i feel like i defeats the purpose.

***SMWS6TA*** · 11-03-2010, 07:03 AM

you sure you have the right one? parts clerks these days can bearly read let alone know what goes on cars anymore.

**WhiteHawk489** · 11-03-2010, 12:39 PM

Originally Posted by SMWS6TA

you sure you have the right one? parts clerks these days can bearly read let alone know what goes on cars anymore.

i got it from ws6store so i would think they would know but i guess everyone makes mistakes.

**sjsingle1** · 11-03-2010, 12:56 PM

http://www.ls1.com/forums/showthread.php?t=145557

there is better for your PCV system

***SMWS6TA*** · 11-03-2010, 01:54 PM

agree that is one of my next mods...

**MrMasterCraft** · 11-03-2010, 02:18 PM

On this 99 Z I recently acquired, the car makes a loud "honing" noise at idle that I traced to the PCV tube that elbows in front of the head. Hopefully it wont be a PITA to replace