pcv valve? annoying buzzing sound! - S-10 Forum
S-10 Forum is the resource on GM S-series trucks, Suspension, engine information, Body Modifications, painting tutorials.  Modifications to suit every need, budget and whim

pcv valve? annoying buzzing sound!

Go Back   S-10 Forum > Engine and Drivetrain Tech > 262ci Forum (4.3)
New User? Register Forgot Password


 
LinkBack Thread Tools
Old 12-24-2011, 03:43 PM   #1
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
pcv valve? annoying buzzing sound!

I have replaced my pcv valve multiple times and it still buzzes like a mother! do all s10s have a loud pcv valve? my truck is a 2000 s10 4.3L LS. When I have my truck in park at idle and I'm sitting in my cab it just buzzes away like there is a bee buzzing in my ear! Or when I stop at a light i can hear it buzz. It's really annoying! please help!
Old 12-26-2011, 02:23 AM   #2
"factory freak"...
 
Crew Cab Sonoma's Avatar
 
Age: 48
Join Date: Mar 2004
Posts: 8,301
Location: Chattanooga, TN
User is: OffLine
Re: pcv valve? annoying buzzing sound!

It certainly doesnt happen on all of them, but does seem
to be a somewhat common issue
If you're certain it's the PCV valve, try putting a restrictor
in the tube near where it attaches to the manifold.

This may eliminate the rattle tendency.
The restrictor can be a piece of rubber fuel hose, but oil
cooler hose would be preferable, due to its oil better
oil resistance, but fuel hose will suffice if it is inspected
regularly for deterioration.

Just make sure whatever you use fits snugly, and
can't be pulled into the intake manifold...
Old 12-27-2011, 09:03 AM   #3
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Quote: Originally Posted by Crew Cab Sonoma
It certainly doesnt happen on all of them, but does seem
to be a somewhat common issue
If you're certain it's the PCV valve, try putting a restrictor
in the tube near where it attaches to the manifold.

This may eliminate the rattle tendency.
The restrictor can be a piece of rubber fuel hose, but oil
cooler hose would be preferable, due to its oil better
oil resistance, but fuel hose will suffice if it is inspected
regularly for deterioration.

Just make sure whatever you use fits snugly, and
can't be pulled into the intake manifold...
It's the pcv valve I know that for sure. I am not understanding what you are talking about here? you want me to put a tube inside the pcv valve tube? *confused*
Old 12-27-2011, 10:29 AM   #4
"factory freak"...
 
Crew Cab Sonoma's Avatar
 
Age: 48
Join Date: Mar 2004
Posts: 8,301
Location: Chattanooga, TN
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Yes. To restrict maximum flow
through the PCV valve.
It should help dampen the
the valves tendency to rattle.

This has worked for me on a
few vehicles in the past.

Also try rerouting or padding
the throttle cable if it contacts
the PCV tube, as the cable tends
to help transmit the rattle noise
into the trucks cabin.
Old 12-27-2011, 11:00 AM   #5
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

alright man, thanks for the help! I'll give it a shot!
Old 12-29-2011, 04:46 PM   #6
1998 S10 Blazer
 
2001cvpi's Avatar
 
Join Date: Nov 2009
Posts: 169
Location: New Jersey
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Mine started buzzing after I got a new one. Quite common. I re-adjusted it a bit more snug and it went away. Happend awhile later at start up then stopped. I'll just replace it if it happens again with Delco. wtf... No biggie.
Old 12-29-2011, 06:14 PM   #7
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Quote: Originally Posted by 2001cvpi
Mine started buzzing after I got a new one. Quite common. I re-adjusted it a bit more snug and it went away. Happend awhile later at start up then stopped. I'll just replace it if it happens again with Delco. wtf... No biggie.
you think a delco pcv will not buzz like all of the other cheap brands?
Old 12-29-2011, 06:26 PM   #8
"factory freak"...
 
Crew Cab Sonoma's Avatar
 
Age: 48
Join Date: Mar 2004
Posts: 8,301
Location: Chattanooga, TN
User is: OffLine
Re: pcv valve? annoying buzzing sound!

It might, but IIRC, a couple of people in the past
on here have claimed their original did it as well.
But who knows...
Old 12-29-2011, 07:12 PM   #9
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

I was going to buy a delco pcv but I never got around to it because I've been to busy trying to figure out my trucks vibration issue!

http://www.s10forum.com/forum/f107/n...ration-485083/
Old 12-30-2011, 05:37 PM   #10
Registered User
 
Join Date: Aug 2008
Posts: 488
Location:
User is: OffLine
Re: pcv valve? annoying buzzing sound!

The buzz on mine went away when I replaced all the vacuum lines. I hasd some symptoms of a leak and just replaced all of them rather than try to find it. Costs less than $10.
Old 12-30-2011, 08:48 PM   #11
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Quote: Originally Posted by jweller
The buzz on mine went away when I replaced all the vacuum lines. I hasd some symptoms of a leak and just replaced all of them rather than try to find it. Costs less than $10.
There was a few vacuum lines I changed alittle while ago....not sure if I got them all. could you send me pictures of the lines you changed?
Old 01-01-2012, 12:35 AM   #12
Registered User
 
Join Date: Aug 2008
Posts: 488
Location:
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Quote: Originally Posted by s10-4-life
There was a few vacuum lines I changed alittle while ago....not sure if I got them all. could you send me pictures of the lines you changed?
basically look at your engine bay, and change every one you see.

I didn't fiddle with the EVAP stuff
Old 01-09-2012, 11:36 PM   #13
Registered User
 
Join Date: Jan 2010
Posts: 68
Location:
User is: OffLine
Re: pcv valve? annoying buzzing sound!

This happened to me. I replaced my oem pcv valve with a frame which was a mistake. It rattled so horribly that it was all I could hear. I replaced it with a ac delco one and it was quite as ever. That's just what happened to me but it could be something.
Old 01-09-2012, 11:38 PM   #14
Registered User
 
Join Date: Jan 2010
Posts: 68
Location:
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Sorry. I meant fram instead of frame.
Old 01-10-2012, 07:04 PM   #15
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Quote: Originally Posted by Xtreme_03
This happened to me. I replaced my oem pcv valve with a frame which was a mistake. It rattled so horribly that it was all I could hear. I replaced it with a ac delco one and it was quite as ever. That's just what happened to me but it could be something.
Well My pcv valve was rattling like crazy for the longest time until I got back from a long road trip with my truck. I think if there is to much build up in the intake it will cause the pcv valve to make stupid noises because mine doesn't make any noise anymore and I didn't do anything to fix it. I think I burnt all the built up sh*t in my intake. We'll see if it starts making noise again and then I'll have to go out and order the ac delco one.
Old 01-10-2012, 07:09 PM   #16
Registered Hoosier
 
Hoosier Rick's Avatar
 
Age: 56
Join Date: Jun 2010
Posts: 2,770
Location: Frankton, Indiana
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Sometimes the hard plastic pcv hose is touching the vacuum hose to the brake booster. This transfers pcv noise into the cab. I have fixed several by repositioning the hoses away from each other.
Old 01-10-2012, 07:12 PM   #17
Registered User
 
s10-4-life's Avatar
 
Age: 23
Join Date: Apr 2011
Posts: 187
Location: Windsor, Ontario
User is: OffLine
Re: pcv valve? annoying buzzing sound!

Quote: Originally Posted by Hoosier Rick
Sometimes the hard plastic pcv hose is touching the vacuum hose to the brake booster. This transfers pcv noise into the cab. I have fixed several by repositioning the hoses away from each other.
Interesting! I may have to take a look at that.
Sponsored Links
Advertisement
 

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the S-10 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 02:42 AM.

Powered by vBulletin® Copyright ©2000 - 2011, Jelsoft Enterprises Ltd. SEO by vBSEO 3.2.0
SEO by vBSEO
vBulletin Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.