SaturnFans.com
saturnfans.com - classifieds - forums


Go Back   SaturnFans.com Forums > Models > Saturn S-Series > S-Series Tech

Closed Thread
 
Thread Tools Display Modes
Old 01-14-2003, 08:16 PM   #1
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Question How do I clean the EGR valve?>>>

I have the EGR with the black stack and the wired connector.I got an annoying chuggle/bottoming out at about 2500-2800 rpm under light throttle at times.VERY annoying.Never sets off SES though.I've put in new Saturn Genuine plugs and wires+Fuel filter,still has the problem after.
Can carbon be built up in there after 55k?
How do I clean this thing and the orifice it goes into?
If this don't do it,next stop TPS!
auxmike is offline  
SaturnFans.com Sponsored Links
Old 01-14-2003, 08:22 PM   #2
Heartbeat - '95 SL2
Senior Member
Heartbeat - '95 SL2 is on a distinguished road
 
Heartbeat - '95 SL2's Avatar
 
Join Date: Jan 2001
Location: Southern California
Posts: 1,324
 

1995 SL2
Default

use the 'search' function here, and you'll find plenty of descriptions. Generally, it's "use carb cleaner and a stiff brush" and "clean the mounting hole too." Chilton guide says to use piano wire to clean the mounting hole, but I can't even picture that. Good luck, if it works, you save about $100 on the cost of a new EGR.
Heartbeat - '95 SL2 is offline  
Old 01-14-2003, 08:47 PM   #3
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

Are these electronic EGRs prone to fail?You make it sound like the best fix is to replace it,is this true,or can these valves be cleaned periodicly?
auxmike is offline  
Old 01-14-2003, 10:20 PM   #4
wolfman
Super Member
wolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of light
 
wolfman's Avatar
 
Join Date: Jun 2002
Location: Texas
Posts: 12,066
 
Default

The linear electronic EGR valve used on 95' and above Saturns uses an electric "step motor" to open and close the EGR valve's pintle more precisely than the old vacuum operated valve. The LOWER portion of the valve has a visable shaft which can be cleaned if gummed up with deposits. The engine passage itself can be also. For the valve, CAREFUL application of a spray carb cleaner and an old toothbrush. Same goes for the engine passages, although a brass brush can be used to clean the engine aluminum.
...
Old Saturns never die, people KILL them, so check your damn oil!
"Unthinking respect for authority is the greatest enemy of truth." Albert Einstein
wolfman is offline  
Old 01-14-2003, 10:24 PM   #5
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

Wolf,can I vacuum out any loose carbon dust from the manifold after I scratch it off?
Also,does this sound like my problem,stumble on light accel at 2500-2800 RPM?
auxmike is offline  
Old 01-14-2003, 10:34 PM   #6
wolfman
Super Member
wolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of light
 
wolfman's Avatar
 
Join Date: Jun 2002
Location: Texas
Posts: 12,066
 
Default

Vacuum not really necessary but feel free. A stumble at 25-2800 rpm "could" very well be EGR related as that is the rpm range where maximum EGR function comes into play. General tune up items (plugs/wires/fuel injector cleaning) are also things to investigate.
...
Old Saturns never die, people KILL them, so check your damn oil!
"Unthinking respect for authority is the greatest enemy of truth." Albert Einstein
wolfman is offline  
Old 01-14-2003, 10:46 PM   #7
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

I did the plugs/wires/Fuel filter thing already.All genuine saturn goods too.
If the EGR is the culprit great,if not,TPS,here I come!
I also have the brown coolant temp sensor in my saturn parts goodie bag,just in case
auxmike is offline  
Old 01-15-2003, 11:44 AM   #8
Luke
Master Member
Luke will become famous soon enough
 
Luke's Avatar
 
Join Date: May 2002
Location: Laguna Bch, CA
Posts: 4,159

1995 SL2
Default

Fm Wolf:
Quote:
A stumble at 25-2800 rpm "could" very well be EGR related as that is the rpm range where maximum EGR function comes into play
With my cruise type of driving (slow), I found that my EGR became active at the 2000 mark, (( not to challenge Wolf)) and when I would have slight rpm stumbling at that rpm, within five seconds, the SES light would come on, setting a 32 code. This indicated that, in most cases, the unit needed to be cleaned. But I always had a code 32 set when this happened.
...
> 95 SL 2 = 653,369 Miles 40.4 MPG, as of 5/20/11. My manual Radiator Fan Switch, courtesy of Wolfman's patient installation guidance, continues to be.......invaluable < The car was retired
Luke is offline  
Old 01-15-2003, 07:15 PM   #9
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

I NEVER get a light!Is'nt that weird???
auxmike is offline  
Old 01-15-2003, 08:17 PM   #10
sps SOHC
Master Member
sps SOHC is on a distinguished road
 
sps SOHC's Avatar
 
Join Date: Dec 2002
Location: Gainesville, FL
Posts: 4,036
 

1996 SC2
Default

my car was doing the exact same thing as you. I thought it was the spark plugs and when I slapped on the BOSCH, the only diff. I felt from them was NO MORE CHUGGING!
...
-96 SC2 gets 35 mpg mix city/hw.
sps SOHC is offline  
Old 01-15-2003, 10:16 PM   #11
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

I'm led to believe a different brand of plugs won't produce any better results than the Dealer bought NGKs I just installed.
I'm going to focus on the EGR next....
auxmike is offline  
Old 01-16-2003, 11:09 AM   #12
Luke
Master Member
Luke will become famous soon enough
 
Luke's Avatar
 
Join Date: May 2002
Location: Laguna Bch, CA
Posts: 4,159

1995 SL2
Default

Mike:
Quote:
I NEVER get a light!Is'nt that weird???
Then I would say the the EGR has a very low probabiity of the source of the problem.
...
> 95 SL 2 = 653,369 Miles 40.4 MPG, as of 5/20/11. My manual Radiator Fan Switch, courtesy of Wolfman's patient installation guidance, continues to be.......invaluable < The car was retired
Luke is offline  
Old 01-16-2003, 07:23 PM   #13
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

I thought any disruption in normal operation would trigger a SES code/light.How can the problem sneak by daily with out triggering the light?
The light works when I put the car in start,so it's not burn out...
auxmike is offline  
Old 01-16-2003, 08:25 PM   #14
Heartbeat - '95 SL2
Senior Member
Heartbeat - '95 SL2 is on a distinguished road
 
Heartbeat - '95 SL2's Avatar
 
Join Date: Jan 2001
Location: Southern California
Posts: 1,324
 

1995 SL2
Default

Just my 2 cents, when mine went out, I couldn't even keep the car running -- once it was in gear, it would stall. No SES light, just stalling.
Heartbeat - '95 SL2 is offline  
Old 01-16-2003, 08:39 PM   #15
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

Jason,you have OBDII right?Do you have the Linear electronic EGR valve in yours?
auxmike is offline  
Old 01-17-2003, 01:13 AM   #16
wolfman
Super Member
wolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of light
 
wolfman's Avatar
 
Join Date: Jun 2002
Location: Texas
Posts: 12,066
 
Default

In answer to the question "how can the valve have a problem without the ses light coming on?" The PCM (OBD2) monitors the POSITON of the EGR valve's pintle in relation to where it "should be" based on the signal being sent to and FROM the EGR valve. The valve itself can be working just fine BUT if some crud is preventing the pintle from sealing OR enough crud has built up to prevent proper regulated flow when the valve operates, it CAN affect operation without the PCM "seeing" anything "wrong" with EGR function. Just as in the older (PRE 95') cars with the vacuum operated valves, the PCM could only "see" problems with the electrical circuit of the EGR. A bad EGR valve in those cars actually RARELY set an SES light.
...
Old Saturns never die, people KILL them, so check your damn oil!
"Unthinking respect for authority is the greatest enemy of truth." Albert Einstein
wolfman is offline  
Old 01-17-2003, 08:47 AM   #17
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

Thanks Wolf!I'm going to see what I can do with that valve.Do I need use new gasket and hardware after cleaning?
auxmike is offline  
Old 01-17-2003, 11:58 AM   #18
Luke
Master Member
Luke will become famous soon enough
 
Luke's Avatar
 
Join Date: May 2002
Location: Laguna Bch, CA
Posts: 4,159

1995 SL2
Default

Be kind to me all......for I may bereally off on this, but here goes...

Quote:
Jason,you have OBDII right?
As I have a '95 SL2, my car has an OBDI, not II & does have aa linear EGR. With this observation, the recommendations may be different.
...
> 95 SL 2 = 653,369 Miles 40.4 MPG, as of 5/20/11. My manual Radiator Fan Switch, courtesy of Wolfman's patient installation guidance, continues to be.......invaluable < The car was retired
Luke is offline  
Old 01-17-2003, 08:36 PM   #19
auxmike
Senior Member
auxmike is on a distinguished road
 
auxmike's Avatar
 
Join Date: Sep 2002
Location: Long Island,NY
Posts: 1,619
Default

Hmmmmmmmm...How many EGR valves have you gone through?
auxmike is offline  
Old 01-17-2003, 10:40 PM   #20
wolfman
Super Member
wolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of lightwolfman is a glorious beacon of light
 
wolfman's Avatar
 
Join Date: Jun 2002
Location: Texas
Posts: 12,066
 
Default

Auxmike,
Provided the EGR valve gasket comes off in relatively good shape, you CAN reuse it. Rip or gouge it enough to cause a leak BETWEEN the ports or to the outside air and you'll need a new gasket. ( times out of 10 the gasket CAN be reused)
...
Old Saturns never die, people KILL them, so check your damn oil!
"Unthinking respect for authority is the greatest enemy of truth." Albert Einstein
wolfman is offline  
Closed Thread

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
how do you clean a egr valve saturncrzy S-Series General 10 05-16-2008 07:36 AM
EGR Valve Clean Screen acman S-Series Tech 3 01-22-2008 12:03 PM
Best way to clean an EGR valve oseberg S-Series Tech 4 08-31-2007 10:40 AM
How long to tell if EGR valve clean worked 07green1 S-Series General 2 04-05-2005 04:34 PM
P1404 - EGR Valve is clean ddpphx S-Series General 4 09-03-2004 02:10 AM


All times are GMT -4. The time now is 06:50 PM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
SaturnFans.com. The Saturn Enthusiasts Site.