Anyone else get a letter yet asking for participation in an emissions testing study Chrysler Corp. is doing on some of the 07 and 08 CRD's. Just got but I have never seen a company do one like this but seems pretty good.
They basically give you another Chrysler product at no cost that "meets your needs" with unlimited miles allowance, they take the CRD for between 1-4 weeks (approximately 80 miles will be driven) perform dyno, and a very long emissions test, replace entire exhaust system including DPF and catalyst - Any issues with emissions requiring repair are done at no cost. Everything is at no cost - then they give you a check for $250 once everything is done and retunr the CRD full of diesel and washed. There looks like there is some criteria they will use to pick the one's they want like mileage, towing use, off roading.
Not sure if i will do it but interesting. Trying to look at the downside like un-known issues that could be caused and not surface until later but other than that I can;t think of many.
LOL - yeah I suppose.... but a free exhaust system, cash, no real inconvenience given it is an "equal" loaner (although since they don't have diesel jeeps in the US the last few years nothing is equal) it really adds up to well over a thousand dollars.... but what they do TO it like you say is what is worrying me for sure. We don't have emissions testing required where I live so I have no idea how hard it is for a WK CRD to pass? Anyone know that has it done - I haven't read any posts related to fails for emissions but would be really interested? Mine is pure stock and has always run really well less a glow plug fail but that's no big deal all considered.
I just wish I knew the underlying motivation because that would tell alot as to what they may or may not change out. I am going to call and talk to a live person Monday to see if they will explain the underlying driver for it but as of right now I'll take a risk since even if I send in the paperwork they may not want mine for the study.
I do not have a letter yet but I wonder why they would do this?[/QUOTE]
Yeah this is what the magic question comes down to. The letter reads as if they will replace the exhaust system and DPF regardless of how it checks out. That tells me they are going to make temporary tweaks to whatever they feel impacts emissions and then once complete replace everything impacted and then re- test but this is only a guess.
Jeep could be concerned about its "green" image.
If our jeeps are spewing out pollutants it would look pretty bad. I ordered mine in 2007 when our CRD's were touted as environmentally friendly, but then BlueTec was removed.
It may be about comparing long term impact of our CRD's regen system and the Merc's with BluTec and maybe even the new Fiat CRD coming out?
There are so few Grand Cherokee CRD owners & I have not heard of any issues with the exhaust systems.
I doubt they would concern themselves with us unless it helps them with future vehicles.
can you post the letter or who the letter came from? thanks
It could simply be (and is probably most likely) they're just slapping new factory parts back on at the end. Keep in mind whatever they do put on at the end already has to have passed EPA testing—unless they've been secretly sinking a whole lot of money into a new exhaust for CRD engines that Daimler will no longer sell them, it's unlikely the stuff your vehicle's returned with will be different from what the parts counter can order.
It's extremely valuable in manufacturing to "capture" real-world, used samples of your equipment.
If you want to analyze and tear down a CRD exhaust that's been used by an actual buyer, the only way to do it is by convincing an actual buyer to part with theirs. Lab testing, accelerated testing, and professionally-tested equipment can tell you a lot, but that doesn't always correlate to the real world.
2006 WK Laredo 4x4 4.7L
1993 ZJ Laredo 4x4 4.0L — Dead, sold, and rolling again
It will be interesting to hear what Chrysler tells you.
Typically the manufacturers test in-use vehicles for better determining the real world aging characteristics of the exhaust system and other emission components to improve new models. Chrysler has not been known to do this very often.
This is also a requirement from the EPA for in-use conformity testing. The EPA tests several different vehicles per year, but cannot test them all. They commonly ask the manufacturer to self-test their products and provide results to comply with the regulations. Vehicles are certified to 100,000, 120,000 and up to 150,000 miles for emission compliance based on what the manufacturer decides. Sometimes the diesel exhaust systems are instrumented with pressure transducers and thermocouples and thus cannot be returned to the customer. This is most likely the reason for the letters.
Good input.... will see what I can find out on the phone tomorrow and post. The letters come from both Chrysler Corporate and then there is another letter from the contracted test lab called Automotive Testing and Development Services Inc. - also in Ann Arbor MI. It says testing is all done at the Chrysler Technology Center emissions labroratory in MI - have to wait and see what the scoop is