Oil in PCV and wierd noise - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-31-2006, 10:07 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2004
Location: Wappingers Falls, NY
Posts: 231
Thanks: 0
Thanked 0 Times in 0 Posts
Explr1 is on a distinguished road
Default Oil in PCV and wierd noise

I have been hearing a strange noise at around 6000 rpm'* and when it upshifts during WOT merging on the highway. Sometimes it sounds like a wooshing noise, other times like a loud tinging noise coming from the right front of the engine, or the belt area. It only makes the noise for a second or two and under the 6K WOT conditions. All of the pulleys seem to be fine, and the alternator is fairly new. I checked the PCV valve and it'* full of oil. I've never seen fresh oil in the valve in other cars I've owned. Is this normal? Any ideas about the sound? I'll try and take a vid of the noise. Thanks.





Explr1 is offline   Reply With Quote
Old 07-31-2006, 11:07 PM   #2
Senior Member
Posts like a Northstar
 
Join Date: Dec 2002
Location: Bellbrook, Ohio
Posts: 547
Thanks: 0
Thanked 0 Times in 0 Posts
compyelc4 is on a distinguished road
Default

6K RPM? Do that often? These engines are tough but aren't really designed to run often that hard, unless you've had the bottom end and top end beefed up.

PCV'* should run somewhat dry, but I have seen crud and dirty blow-by oil on them as the engine ages. Oil in the pcv system is caused by combustion gasses getting by the rings and into the upper intake area where the pressurized oil is drawn off and then sucked back into the intake manifold to be burned with intake air. If you have that much fresh oil in the pcv then I'll bet your intake runners are soaked with it. Do you use oil? Bet so if you run real hard often. This will also shorten life of the plugs, oxygen sensors, and cats. How'* your compression? Check it lately.

Hope she holds together for you. I wish you the best.
compyelc4 is offline   Reply With Quote
Old 07-31-2006, 11:23 PM   #3
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

6000 rpm? I'd take it easy on that thing, just my opinion. Ted, real good explanation.
markwb is offline   Reply With Quote
Old 08-01-2006, 10:00 AM   #4
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Feb 2004
Location: Wappingers Falls, NY
Posts: 231
Thanks: 0
Thanked 0 Times in 0 Posts
Explr1 is on a distinguished road
Default

Quote:
Originally Posted by compyelc4
6K RPM? Do that often? These engines are tough but aren't really designed to run often that hard, unless you've had the bottom end and top end beefed up.
Well damn, why does Pontiac advertise these engines as high performance then? I have had nothing but trouble with this car since I bought it. Things replaced since February:

Covered by Dealer Warranty
Upper and lower intake manifold gaskets
Alternator
Idler arm pulley
Both valve cover gaskets

Repaired by me
Door leak
o2 sensor

Current Problems
Gas gauge not working lower than1/4 tank
Noise at high RPM'*
Oil in PCV
Broken seat heater
rear window that doesn't go down half of the time.

My last car was an '05 G6 which I ditched due to "fly by wire" steering issues. The best vehicle I ever had was a 97 Explorer with the OHV 4.0. I use to beat on that thing 24-7 for three years, went offroading every weekend, and never had any problems at all with it, except for tie rod ends. I'm know seriously thinking about ditching the Bonne for a Dodge Caliber, or another X.
Explr1 is offline   Reply With Quote
Old 08-02-2006, 09:44 AM   #5
Senior Member
Posts like a Camaro
 
Join Date: Dec 2005
Location: Clovis, CA
Posts: 851
Thanks: 0
Thanked 0 Times in 0 Posts
MACDRIVE is on a distinguished road
Default

Uh....like Ted says, you're gonna have to do a compression check to check for broken or worn compression rings. Blow-by is the only thing I can think of that would cause a PCV valve to get oil soaked like that.
MACDRIVE is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
gas in oil/oil in pcv valve Paco.McGraw 1992-1999 10 08-17-2006 03:08 AM
wierd noise help please BigChuck94 1992-1999 16 06-30-2006 01:19 AM
Wierd noise in front end , and ABS question 97SSE 1992-1999 4 12-16-2004 11:59 AM
Wierd exaust noise Garb 1992-1999 10 01-09-2004 10:09 PM
wierd noise.... mista_sse 1992-1999 2 11-08-2003 08:33 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:20 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.