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EGR equipped engines.
The subject of EGR equipped engines came up at the ‘Know your Prevost’ seminar this past October.
When were the EGR system required to be installed on engines?
Were all engine manufacturers required to install them (Cummins, CAT, DD)?
It was mentioned on another site that I read that CAT didn’t have EGR until 2007, would that be true?
I know that some of you are engine guru’s and thought that you might know the answers.
Thanks,
Mark
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20 Replies
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2002 was the start all diesel engines were required to be EGR equipped by 2007 they were allowed to use software to control emission up to 2007 fwiw Cat had EGR in 2002. I don’t about all Cat engines but the C13 was EGR equipped and it created a lot of problems for Cat
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For Prevost specifically EGR engines were unstalled in the 2004 model year run.
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The emmissions regs do not require EGR, only that certain emissions be reduced to specified levels. EGR has been used by Detroit and Cummins and I believe Mercedes to solve the problem. Caterpillar engineers chose to solve the emissions problem by a different technology, which they called ACERT, which was problematic on the larger engines which had high failure rates. This spawned a few class action lawsuits by fleet owners. CAT realized its engineering was flawed and stopped making all over the road engines in 2009. Around that time CAT made some trucks with Navistar engines, but that didn’t work either. Eventually, CAT started putting Cummins engines in the CAT brand trucks. Not sure what the current state of Caterpillar engine buliding is. I had a C-9 ACERT engine in a previous motorhome and it worked great. I think the problems were more sereious in the C-13 and C-15 engines used in heavy trucks and high-end motorhomes like Newell.
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Cat never called it a EGR but it was a low pressure loop EGR with a DPF the C-7 and C-9 used HEUI (hyd) injectors same as IH used on their engines the C-13 and C-15 used MEUI (mech) injectors Cat paid some heavy fines for the emmisions deal on the C-9 engine and so did IH on their 466
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International/Navistar was also fined millions for installing “defeat devices” in its engines to make them run 3x cleaner during testing, perhaps giving VW the idea.
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I cannot get my brain to understand the concept of how a series 60 getting 8 MPG is not as clean burning or good for the environment as a series 60 with an EGR getting 5.9 MPG.
As a kid i remember the smell of diesel exhaust in the NY Port Authority bus terminal. Today if I start my Ram pick up in the garage I cannot smell any exhaust. So we clearly are improving things, but at what expense.
I would like to kick Al Gore.
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I’d like to stand beside of ya when you do it!!!
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Interesting these posts are being made to this thread on the first day of the HUGE global warming/climate change love fest in Paris being attended by 125 heads of state.
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John I cannot believe that you of all people would kick the father of the internet ! shame on you LOL
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It does defy logic that burning more diesel is cleaner. It just looks cleaner because there is no more black smoke!!! It’s a liberal feel good thing. It doesn’t really have to work just look like does!
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And a fellow Tennessean, too! Although I believe the state’s voters did not support his presidential attempt a few years ago.
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“And a fellow Tennessean, too!” It’s sad, ain’t it?
He flies around the world in a jet, lives in a very large house and
lectures to the world about using less energy. -
Randall, you are probably right that the clean air regs are a “liberal feel good thing.” However, I must note that my liberal lungs are feeling good that the amount of particulates in the air has dropped dramatically in the last ten years and I think my future grandkids are going to feel even better. I think yours will too.
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Are we talking about the same guy that can’t spell POTATO ???
Bill S.
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I wonder if he owns a Prevost and has had the “Ugly Fix” done?
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