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cummins catalytic converter

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Old 09-28-2004, 02:27 PM
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cummins catalytic converter

i have a friend i just visited in Calif. who has a neighbor that lives Cummins (has three.) while we were discussing these Cummins we got into the catalytic converter thing and we came into a disagreement about weather or not all dodge Cummins were equipped with converters. He claims ALL ctd's are manufactered with converters. I am sure i have read many times on these forums that they did not have them ?
Whats the verdict here?
Old 09-28-2004, 02:50 PM
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Re: cummins catalytic converter

Originally posted by herb
i have a friend i just visited in Calif. who has a neighbor that lives Cummins (has three.) while we were discussing these Cummins we got into the catalytic converter thing and we came into a disagreement about weather or not all dodge Cummins were equipped with converters. He claims ALL ctd's are manufactered with converters. I am sure i have read many times on these forums that they did not have them ?
Whats the verdict here?
i guess i should have posted this under 24v
Old 09-28-2004, 03:58 PM
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I thought only the 04.5 and newer 600's had the converter!?!
Old 09-28-2004, 04:23 PM
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The 04.5 all have converters. Some or all California 235 hp have converters in 3rd Gen.
Old 09-28-2004, 04:34 PM
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I think it was the '96 model year that some Dodge CTD's (especiallly cali models) had cats.

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Old 09-28-2004, 04:52 PM
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this guy was saying that the resonater is in fact a cat converter
Old 09-28-2004, 04:59 PM
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Resonator is straight through. 3" or 3.5" inlet (can't recall) and 4" outlet. Yank it off, and you will see that all it is, is an expansion chamber. It is to keep reonance that our little 6-cylinder makes alot of, out of the cab.

Merrick
Old 09-28-2004, 05:09 PM
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comon folks i need a few of you to collaborate that they built a lot of these ctds without cats. i am going to forward this link to him and introduce him to our deiseltruck forum !!
Old 09-28-2004, 07:15 PM
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You could take a pole of 03-04 305 555 owners that have cats. My guess would be zero.
Old 09-28-2004, 07:23 PM
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No 1st gen trucks had a cat.
Old 09-28-2004, 07:33 PM
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Talking

The '03s, 265 and 305 neither have cats, at least the 49 stae variety :) . I can't say for California :rolleyes:

Also, we don't have EGR in case that topic comes up :cool:
Old 09-28-2004, 08:42 PM
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04 305/555 no cat
Old 09-28-2004, 08:52 PM
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I always understood it to be:

1st gen's, no cat.

2nd gen 12 valve, yes cat

2nd gen 24 valve, no cat (early 98.5's might have had them)

3rd gen (2003/04) no cat.

3rd gen (2004.5 on up) yes cat.

This is all non California trucks, I thought all California trucks had them 2nd gen on up.

I've only owned one, a non California 2002 24 valve and it has no cat.
It does have a resonator which is not, repeat NOT a catylitic converter in any way shape of rorm.

As the resonator was invented when the cat's went away, California trucks might not have ever had them.


phox
Old 09-28-2004, 09:16 PM
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How do they keep a cat from getting clogged on a diesel? It takes a lot of heat to get platinum catalyst to start working.
Old 09-28-2004, 09:47 PM
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Originally posted by mhuppertz
How do they keep a cat from getting clogged on a diesel? It takes a lot of heat to get platinum catalyst to start working.
Don't let the FELINE near the intake and it won't clogged in the exhaust.

What can I say? I thought it was smarta$$ test question.


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