Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks
Sponsored by:
Sponsored by:

Check engine EGR problem and passing emissions

Thread Tools
 
Search this Thread
 
  #1  
Old 10-21-2011, 01:46 PM
roller_steve's Avatar
roller_steve
roller_steve is offline
Senior User
Thread Starter
Join Date: Nov 2006
Posts: 151
Likes: 0
Received 1 Like on 1 Post
Check engine EGR problem and passing emissions

Hello:

Good news for me. I passed my fourth emissions test. The other three were failures. Reason? The EGR valve was giving off a check engine error.

Word to the wise: if you know this is the problem with your car, get it fixed before having the emissions people test it. Even CRC Guaranteed To Pass won't solve the problem if the EGR valve is not able to recirculate the combustion gases. My third reading for the NOx test was 1,700 parts per million; my fourth was 259 parts per million. I needed 859 or less to pass. Whoopee!

If you want to know how to troubleshoot EGR problems, read my posts on it. Yesterday, I finally found the cracked hose at the V8 can that was causing me to have no vacuum back to the valve. Believe it or not, even strong duct tape will fix it. But with that hole there, or a crack, it will not pass the NOx emissions end of the test.
 
  #2  
Old 10-21-2011, 07:50 PM
Bankrupter's Avatar
Bankrupter
Bankrupter is offline
Elder User
Join Date: Mar 2011
Location: North Central MA
Posts: 923
Likes: 0
Received 1 Like on 1 Post
Originally Posted by roller_steve
Hello:

Good news for me. I passed my fourth emissions test. The other three were failures. Reason? The EGR valve was giving off a check engine error.

Word to the wise: if you know this is the problem with your car, get it fixed before having the emissions people test it. Even CRC Guaranteed To Pass won't solve the problem if the EGR valve is not able to recirculate the combustion gases. My third reading for the NOx test was 1,700 parts per million; my fourth was 259 parts per million. I needed 859 or less to pass. Whoopee!

If you want to know how to troubleshoot EGR problems, read my posts on it. Yesterday, I finally found the cracked hose at the V8 can that was causing me to have no vacuum back to the valve. Believe it or not, even strong duct tape will fix it. But with that hole there, or a crack, it will not pass the NOx emissions end of the test.
This is the reason my plow rigs are old. 95's dont need to get sniffed here. As long as my light is out when I pull in till the sticker is printed Im good. CEL is on they will fail it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lovntexas
6.0L Power Stroke Diesel
23
08-15-2016 02:24 PM
bigb609
1987 - 1996 F150 & Larger F-Series Trucks
5
10-02-2011 12:28 PM
Grahams
6.0L Power Stroke Diesel
6
05-23-2010 06:57 PM
cooky
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
3
12-01-2005 12:00 AM
Galaxie427
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
6
02-22-2004 04:39 AM



Quick Reply: Check engine EGR problem and passing emissions



All times are GMT -5. The time now is 02:01 AM.