How to Replace or Clean EGR Valve? - ClubLexus - Lexus Forum Discussion


LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

How to Replace or Clean EGR Valve?

Reply
 
 
 
Thread Tools Search this Thread
Old 01-30-11, 08:04 PM   #1
savala88
Driver School Candidate
Thread Starter
 
Join Date: Mar 2009
Location: ca
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Default How to Replace or Clean EGR Valve?

My car has about 220K miles and when I took it in for a smog test it failed the emissions test. The guy at the shop told me that the EGR valve is clogged and that it would be really easy for me to clean myself as long as I feel suction and that once I cleaned it that it would surely pass the test. Well today I checked to see if there was suction and there was, I cleaned the filter and ran some motor treatment through the system but I'm still not sure how to clean the valve out. He said all I need to do is stick a clothes hanger in there and clean it out. However, he was in a hurry as the shop was pretty busy and I was wondering if anyone had any better examples of exactly where and what to do, I'm a visual learner so any photo instructions or videos would also be greatly appreciated


thank you
savala88 is offline   Reply With Quote
Old 01-31-11, 04:02 AM   #2
twofanman
Rookie
 
Join Date: Dec 2010
Location: Colorado
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Default

twofanman is offline   Reply With Quote
Old 01-31-11, 08:53 AM   #3
oldskewel
Lead Lap
iTrader: (1)
 
Join Date: Sep 2010
Location: California
Posts: 461
Thanked 14 Times in 13 Posts
Default

Those tutorials can't hurt, but will not help you clean out your EGR valve.

The EGR valve is shown in one of the photos there. If you remove it (the EGR valve, not the filter, not the PCV valve), you may see carbon buildup in some of the passages leading into the valve, or within the valve itself. Your goal is to get rid of the carbon buildup so the exhaust gases (the EG in EGR) can flow freely and the solenoid valve can move freely. It really should be pretty clear to you once you see it. Use a screwdriver, drillbit (in your hand, not in a drill), coathanger, whatever to knock/scrape off whatever you can. If you have a compressor, blow air through there. Use carb cleaner or brake cleaner to help dissolve. Toothbrush (an old one) to brush clean. Can let the carb/brake cleaner soak for a while if you want.

If you know the right polarity, you can try connecting battery voltage to the valve to see if it clicks and moves freely. But mostly this is about cleaning out the obvious carbon buildup.
oldskewel is offline   Reply With Quote
Old 01-31-11, 10:00 AM   #4
JAndersson
Driver
 
Join Date: Dec 2008
Location: Sweden
Posts: 196
Thanks: 0
Thanked 1 Time in 1 Post
Default

See attached pdf on how to remove and test the egr valve.
Attached Files
File Type: pdf Testing and Inspection EGR Valve.pdf (144.7 KB, 6096 views)
JAndersson is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2JZ-GE Y-Plenum EGR passage cleaning KahnBB6 Performance & Maintenance 5 10-31-16 11:23 PM
sc400 EGR DELETE --still throwing CEL code 71 1UZFE_SC95 Performance & Maintenance 24 08-20-15 04:23 PM
Code 71 - EGR System Failure dricacho Performance & Maintenance 2 08-20-15 03:37 PM
Anyone ever clean EGR Valve? LexBrett SC430 - 2nd Gen (2001-2010) 3 08-10-15 09:53 AM
egr code ...egr valve is good johnblagg ES - 1st to 4th Gen (1990-2006) 13 01-03-12 05:28 PM


Tags
1991 , clean , cleaning , egr , emissions , erg , how , instructions , lexus , ls400 , replace , replacing , testing , treament , valve

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

Forum Jump


All times are GMT -7. The time now is 12:29 AM.


Copyright © 2000-2017 Internet Brands, Inc. All Rights Reserved
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: