Getting better with age. Emissions. - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 3 (permalink) Old 07-15-2003, 05:55 PM Thread Starter
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Getting better with age. Emissions.

I just had the 3rd emissions test done on our car.
When we bought it off the car lot it had some border line numbers but I wasn't too concerned. The second test I was worried about failing due to the just sqeaking by on the first one.
To my surprise it passed with better numbers.
About this time I switched to 5w30 Mobil 1.
I've also since dropped in Bosch Platinum +4's and replaced the EGR valve. May have or may have not been a factor but I thought I'd mention it.

Limits for HC is 72, CO is 0.40, NO is 531.
1st test in 1999, HC = 72, CO = 0.11, NO = 329 @ 60,000km's
2nd test in 2001 HC = 38, CO = 0.11, NO = 129 @ 85,000km's
3rd test in 2003 HC = 21, CO = 0.04, NO = 90 @ 128,000km's

69 Super Bee (under construction)
65 Belvedere 225
87 Ram D150 5.9L, 5 spd
94 LHS 3.5L
93 Mustang LX 5.0L, 5 spd
http://www.cardomain.com/ride/754650/1
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post #2 of 3 (permalink) Old 07-15-2003, 06:16 PM
 
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a good Egr valve would make those numbers drop GREATLY
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post #3 of 3 (permalink) Old 07-15-2003, 10:29 PM Thread Starter
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To understand why I changed the egr I'd have to explain the whole thing.
Cars in Ontario are tested every 2nd year.
Last year the LHS developed a slight shake while idling in gear.
I dove in to replace the intake gasket that as you know is a common problem on 3.5's. Since I had it all apart I also replaced all the other common problems before they became problems, O rings, spark plugs and the egr valve.
Once again the car ran dead smooth while idling in gear.
So I'm doubting I had any of these problems for any of the 3 tests.

69 Super Bee (under construction)
65 Belvedere 225
87 Ram D150 5.9L, 5 spd
94 LHS 3.5L
93 Mustang LX 5.0L, 5 spd
http://www.cardomain.com/ride/754650/1
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