[Gator]

Diesel, great write up. I'm closing in on the 100000 mile mark myself. 98000. I'm hoping to have the same luck as you have.
I did see you had to take it to the dealer for a manual regen. Did I read this right, 250.00 to do this? SMH..I drive a semi and they all have factory switch's to do a manual regen. They switch will only work if it calls for a regen. Seems to me that's a high cost for a safety feature. My I ask what does the dealer do for a manual regen?
The reason I'm asking is because my semi , if I do a manual regen just goes into a high idle mode for a set period then finishes . if that is all the dealer does is over ride the computer to do this that is a rip off.
I understand not letting the customer being able to do this because someone will park it in a garage and do a regen but 250.00, should be one a set period per year at no cost. Well my rant is over on this.
Again great write up again, I'll give one on my 100000 mile mark. Hope to see one at 200000 from you.

 

[diesel]

Diesel, great write up. I'm closing in on the 100000 mile mark myself. 98000. I'm hoping to have the same luck as you have.
I did see you had to take it to the dealer for a manual regen. Did I read this right, 250.00 to do this? SMH..I drive a semi and they all have factory switch's to do a manual regen. They switch will only work if it calls for a regen. Seems to me that's a high cost for a safety feature. My I ask what does the dealer do for a manual regen?
The reason I'm asking is because my semi , if I do a manual regen just goes into a high idle mode for a set period then finishes . if that is all the dealer does is over ride the computer to do this that is a rip off.
I understand not letting the customer being able to do this because someone will park it in a garage and do a regen but 250.00, should be one a set period per year at no cost. Well my rant is over on this.
Again great write up again, I'll give one on my 100000 mile mark. Hope to see one at 200000 from you.

I fully agree with you on the manual regen. $200+ is a ripoff since I am pretty sure they hook it up to a computer, punch a few keys and then let the car sit until it's done. I think they are charging me because the car is taking up one of the bays and the mechanic is supposedly keeping an eye on it. It wasn't really a huge deal to me because that dealership has always done me right in the service department, but I would much prefer a manual regen option. I am glad it happened though, because I was finally able to figure it out and hopefully help others. I fully intend to drive it as a daily driver to 200K and likely beyond. I would like to see you do a 100K write up once you hit that milestone.

 

[Gator]

I will Diesel. I wonder if a aftermarket regen switch could be added to our CTDs. Something that would be nice added to the scantool

 

[money_man]

Wonder if my new snap on scanner will do the manual regens?

 

[diesel]

Wonder if my new snap on scanner will do the manual regens?

Let us know if you figure out how to. I would buy one for that.

 

[money_man]

Let us know if you figure out how to. I would buy one for that.

I'll let you know when I get a chance hopefully this weekend. Just so you know my snap on scanner was $5500 so may not be the kind of thing you want to actually purchase. However I live in Canada so may be a bit cheaper down there.

 

[IndyDiesel]

I recently puchased a 15 Cruze diesel, it has like 5300 miles on it. Recently purchased the scangauge II, great tool but have a couple questions.

1) if one didn't have a scangauge and have some idea when it is suppose to do a regen, if you turn off your car during a regen what happens?

2) I have 20 grams of soot, does it normally start regen around 22?

3) if one drives more city driving does that generate more soot and shorter regen cycles than highway driving?

 

[money_man]

Wish a scangauge 2 wasn't $350 in Canada

 

[IndyDiesel]

Wish a scangauge 2 wasn't $350 in Canada

Send me a private message, I would be happy to get you one and ship it to you. I didn't pay anything close to that. No I am not a dealer, I just buy and sell stuff.

 

[boraz]

3) if one drives more city driving does that generate more soot and shorter regen cycles than highway driving?

100%

 

[money_man]

Send me a private message, I would be happy to get you one and ship it to you. I didn't pay anything close to that. No I am not a dealer, I just buy and sell stuff.

In school right now but maybe I'll take you up on that when I get out.

 

[GlennGlenn]

I recently puchased a 15 Cruze diesel, it has like 5300 miles on it. Recently purchased the scangauge II, great tool but have a couple questions.

1) if one didn't have a scangauge and have some idea when it is suppose to do a regen, if you turn off your car during a regen what happens?

2) I have 20 grams of soot, does it normally start regen around 22?

3) if one drives more city driving does that generate more soot and shorter regen cycles than highway driving?

Ive only had 1 Regen, but from reading it's not a good idea to turn car off during Regen , particularly at the very beginning when MAP goes below 14 ( pre-regen).

my regen started 7 miles into a soot reading of 22. Except for @diesel, most guys Regen at about 22. This is also my experience.

Ive noticed more soot build up in city driving than highway on the Scan Gauge. This may also be a function of the B11 I run here in IL though.

Note, it only took 10 minutes or about 10 miles driving to complete a Regen, so you're better off just letting it finish, even if at idle like the semis do.

 

[countryboy90]

Nice. I will watch for later updates on this car. One thing I am most interested in is how long before the dpf has to be replaced. With semis they have a limit with miles (iirc MB has the ecm set a code around 400k that the dpf NEEDS to be pulled and cleaned) The soot built up in the dpf will leave behind an ash that after so long plugs it up, as I said tho, on semis we can pull them off and clean them out provided they pass a couple tests. But with automotive they don't make the dpf serviceable, so when the limit is reached you remove it and install a new one. Also, you stated about fuel being injected to get the dpf up to temp, mostly they need exhaust temps to reach a certain level before the fuel will start to be injected.

 

[diesel]

Nice. I will watch for later updates on this car. One thing I am most interested in is how long before the dpf has to be replaced. With semis they have a limit with miles (iirc MB has the ecm set a code around 400k that the dpf NEEDS to be pulled and cleaned) The soot built up in the dpf will leave behind an ash that after so long plugs it up, as I said tho, on semis we can pull them off and clean them out provided they pass a couple tests. But with automotive they don't make the dpf serviceable, so when the limit is reached you remove it and install a new one. Also, you stated about fuel being injected to get the dpf up to temp, mostly they need exhaust temps to reach a certain level before the fuel will start to be injected.

I will probably be the first on this forum to discover how long the DPF lasts, but I can say I still get 900-1000 miles between regens with 153K miles on the car.

 

[diesel]

I recently puchased a 15 Cruze diesel, it has like 5300 miles on it. Recently purchased the scangauge II, great tool but have a couple questions.

1) if one didn't have a scangauge and have some idea when it is suppose to do a regen, if you turn off your car during a regen what happens?

2) I have 20 grams of soot, does it normally start regen around 22?

3) if one drives more city driving does that generate more soot and shorter regen cycles than highway driving?

Others have answered some of your questions, but I will give my 2 cents. I posted a sticky that tells you what happens if you shut your car off during the "pre-regen". Shutting off during the regen won't hurt a thing. I've done it many times. You will hear the car's fans stay on after you shut it off if you interrupt a regen.

I am not sure why mine regens at 19 and everybody else's does it at 22. It's strange.

Definitely city driving produces more soot. So does cold start and stop driving.

 

[IndyDiesel]

Yesterday I had my first regen since having scan gauge and it was a few miles after it 22 grams of soot and had driven like 740 miles since last regen. Well had I not had the scan gauge I would have turned the car off just as the map started to drop and go into regen, I kept driving for several minutes and it completed the regen pretty quickly. I was in town so it had some stop and go involved. I doubt it would have been a major problem but it provided a peace of mind knowing what is happening.

For part of the regen I was in a parking lot and it appeared the regen stopped briefly because of speed I guess then once I got going again it finished the regen. I assume this is normal?

 

[IndyDiesel]

I will probably be the first on this forum to discover how long the DPF lasts, but I can say I still get 900-1000 miles between regens with 153K miles on the car.

Sounds like your regen process is working very well. Any idea what a DPF cost to replace if they do go bad outside of warranty? I looked on a gm parts website and couldn't find the part listed.

 

[diesel]

Yesterday I had my first regen since having scan gauge and it was a few miles after it 22 grams of soot and had driven like 740 miles since last regen. Well had I not had the scan gauge I would have turned the car off just as the map started to drop and go into regen, I kept driving for several minutes and it completed the regen pretty quickly. I was in town so it had some stop and go involved. I doubt it would have been a major problem but it provided a peace of mind knowing what is happening.

For part of the regen I was in a parking lot and it appeared the regen stopped briefly because of speed I guess then once I got going again it finished the regen. I assume this is normal?

Don't worry about interrupting the regen when the RGN is 1. You will be safe there. You just don't want to do with with RGN=0 and MAP below 14. And yes. The RGN will go to 0 when you are driving slowly and the temps drop. It will resume once you get the RPMs up again. And come to think of it, probably the only danger area is when the regen first starts. Once it's underway and the RGN goes back to 0, you are likely fine to shut off the car. The only time I ever had a problem was before the RGN ever went to 1.

Sounds like your regen process is working very well. Any idea what a DPF cost to replace if they do go bad outside of warranty? I looked on a gm parts website and couldn't find the part listed.

I think the part alone is $1000. Not cheap at all. But I am optimistic it will last indefinitely though.

 

[gregbonat]

FTI. I am at 171000 mi and am now having dpf filter replaced along w some other things. My timing belt was replaced at 100000 for $425 labor 67 parts. They had to order 2/3 special tools to replace it I had thought of replacing it myself until I saw how bad a job it looked to be.

 

[jblackburn]

FTI. I am at 171000 mi and am now having dpf filter replaced along w some other things. My timing belt was replaced at 100000 for $425 labor 67 parts. They had to order 2/3 special tools to replace it I had thought of replacing it myself until I saw how bad a job it looked to be.

Just curious - what led to it needing to be replaced? Failed regens? Persistent CEL emissions codes?