Please help with emission failure 1995 Ram 1500 - DodgeForum.com


2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Please help with emission failure 1995 Ram 1500

Reply
 
 
  #1  
Old 09-22-2011, 04:45 PM
jnickens
jnickens is offline
Registered User
Thread Starter
 
Join Date: Sep 2011
Posts: 6
Default Please help with emission failure 1995 Ram 1500

I have a 1995 Ram 1500 2 wheel drive with the 5.2 engine. It failed the test with high HC and high NOx, the catalytic converter and O2 sensers are good. The truck runs good, no hesitation during acceleration, never stalls, and idles smoothly. I cannot afford to take it to a garage for repairs it may or may not need. Please give me some advice as to what troubleshooting I can do my self first. I am thinking PVC valve and/or EGR valve. The timing feels ok. Any input will be appreciated.
Reply With Quote
  #2  
Old 09-22-2011, 04:47 PM
HeyYou's Avatar
HeyYou
HeyYou is offline
Super Moderator
 
Join Date: Apr 2010
Location: Clayton MI
Posts: 42,068
Default

Get a PCV valve from the dealer. Less than 10 bucks.

Read the Plenum thread stickied at the top of this forum. If yours hasn't been fixed yet, it is probably (past) time.

Check fuel pressure.......
Reply With Quote
  #3  
Old 09-22-2011, 05:15 PM
zman17's Avatar
zman17
zman17 is offline
Retired Moderator - RIP
 
Join Date: May 2008
Location: NH
Posts: 18,729
Default

Quote:
Originally Posted by jnickens View Post
the catalytic converter and O2 sensers are good.
How do you know that?
Reply With Quote
  #4  
Old 09-22-2011, 05:46 PM
jnickens
jnickens is offline
Registered User
Thread Starter
 
Join Date: Sep 2011
Posts: 6
Default About the emission results

The test verified the O2 sensor was good and the catalytic converter was good... I manually checked the cc and knew it was good before test.
Reply With Quote
  #5  
Old 09-22-2011, 05:52 PM
zman17's Avatar
zman17
zman17 is offline
Retired Moderator - RIP
 
Join Date: May 2008
Location: NH
Posts: 18,729
Default

The test means nothing, I've done tons of E tests on o2's(and a new one solved the problem). And how did you "manually" check the CC ? One other thing, you also stated that your "o2 senors" are good(plural) a 95 only has one?
Reply With Quote
  #6  
Old 09-22-2011, 06:13 PM
jnickens
jnickens is offline
Registered User
Thread Starter
 
Join Date: Sep 2011
Posts: 6
Default Old school way to check catalytic converter

Yes you will laugh....but I checked the catalytic converter by parking on some high grass and watching for smoke....then I used an oven thermometor and verified that the temperature at the outlet was higher than at the inlet....Also, the emissions test verified the catalytic converter and O2 sensor to be good. Yes, I know I only have one O2 sensor.
Reply With Quote
  #7  
Old 09-22-2011, 06:22 PM
zman17's Avatar
zman17
zman17 is offline
Retired Moderator - RIP
 
Join Date: May 2008
Location: NH
Posts: 18,729
Default

I won't laugh. But, wrong, wrong, and wrong. LOL
Reply With Quote
  #8  
Old 09-22-2011, 06:31 PM
jnickens
jnickens is offline
Registered User
Thread Starter
 
Join Date: Sep 2011
Posts: 6
Default Wrong Wrong Wrong..Ok so what is Right?

I am on here asking for help and advice...so what do you recommend?
Reply With Quote
  #9  
Old 09-22-2011, 07:29 PM
HeyYou's Avatar
HeyYou
HeyYou is offline
Super Moderator
 
Join Date: Apr 2010
Location: Clayton MI
Posts: 42,068
Default

How old is the O2 sensor? How many miles on the truck? Has the plenum been fixed? (that would be something I would check immediately, if you are burning oil from a blown plenum, you will NEVER pass the sniffer test.)
Reply With Quote
  #10  
Old 09-22-2011, 07:42 PM
jnickens
jnickens is offline
Registered User
Thread Starter
 
Join Date: Sep 2011
Posts: 6
Default What's a Plenum

Sorry, now I feel stupid. What the heck is a plenum and how do I check it.
Reply With Quote
 
 
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bullelk9
2nd Gen Dakota
8
07-25-2015 05:27 PM
ezeiam
Dodge Magnum
2
07-18-2015 08:33 PM
dannybye
2nd Gen Ram Tech
13
07-17-2015 02:28 PM
JoshuaYsassi
2nd Gen Ram Tech
2
07-09-2015 09:42 AM
mp2000
Dodge Caravan
0
07-07-2015 01:25 AM


Thread Tools
Search this Thread

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 -4. The time now is 04:13 AM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send