[diesel]

Diesel, I think what that light means is that your Cruze is due for a delete and a tune.

LOL, well, I'm not quite there yet!

Anyway, it will probably be a couple weeks before I can report back on this. You know, I did something that I don't usually do before this light came on. I started, moved around the driveway, shut off. I did that a couple times, and I've never done that before. usually I always warm it up. Maybe I created an issue with the sensors by doing that.

 

[revjpeterson]

My guess, based on what you describe (DEF Poor, but no CEL) is that you might be looking at a clogged or malfunctioning DEF injector. Since bad DEF is unlikely, and a NOX sensor problem should set a CEL, that leaves the injector, unless a CEL does set before you accomplish the repair. With the number of miles you have put on, I can imagine that, if that injector hasn't reached the end of its useful life, it at least has built up some crystallization or corrosion at this point that might be enough to impair its performance.

 

[diesel]

My guess, based on what you describe (DEF Poor, but no CEL) is that you might be looking at a clogged or malfunctioning DEF injector. Since bad DEF is unlikely, and a NOX sensor problem should set a CEL, that leaves the injector, unless a CEL does set before you accomplish the repair. With the number of miles you have put on, I can imagine that, if that injector hasn't reached the end of its useful life, it at least has built up some crystallization or corrosion at this point that might be enough to impair its performance.

That makes a lot of sense. Also, from where I had a bad oil drain plug gasket, oil leaked directly on it for several months too.

 

[Louis]

I had this happen twice to me, with the 'poor quality DEF'. I added some newer DEF. (even though the tank was over 1/2 full) drove about 50km and the warning went away.

 

[diesel]

I had this happen twice to me, with the 'poor quality DEF'. I added some newer DEF. (even though the tank was over 1/2 full) drove about 50km and the warning went away.

interesting. Thanks for the feedback.

 

[Louis]

I Just received a recall notice about Nox1 sensor (replace req'd) and or soot buildup on Ox sensor (nothing about replacing it?), think it might be related to the 'Bad Def' readings people are getting.

 

[diesel]

I Just received a recall notice about Nox1 sensor (replace req'd) and or soot buildup on Ox sensor (nothing about replacing it?), think it might be related to the 'Bad Def' readings people are getting.

I am hoping this addresses the issue with mine. It goes into the shop next week.

 

[Louis]

Great the 'poor Quality Def' is back, hit on the way to work this a.m. Last-week I called the dealership about the recall -we need to order parts, called today still no parts. Why did they send me a notice that the parts were available? And this is the dealership that can't change the oil properly... great. next closest dealership is 1hr away.

 

[dougc905]

Bring a book or some tunes and enjoy the next closest dealership's coffee.

Great the 'poor Quality Def' is back, hit on the way to work this a.m. Last-week I called the dealership about the recall -we need to order parts, called today still no parts. Why did they send me a notice that the parts were available? And this is the dealership that can't change the oil properly... great. next closest dealership is 1hr away.

 

[diesel]

Finally got the diagnosis - DEF reductant tank reservoir heater needs to be replaced. I thought that might be it, but odd no CEL.

 

[IndyDiesel]

Finally got the diagnosis - DEF reductant tank reservoir heater needs to be replaced. I thought that might be it, but odd no CEL.

Did they give you an estimate of cost of replacement of the def Heater Reservior? More curious than anything.

 

[diesel]

Did they give you an estimate of cost of replacement of the def Heater Reservior? More curious than anything.

Yes, it was $330 parts and labor. There may have been a charge for diagnosis too, not sure.

 

[boraz]

Finally got the diagnosis - DEF reductant tank reservoir heater needs to be replaced. I thought that might be it, but odd no CEL.

wait,

so another time that 'bad def' isnt the problem.

sigh.

 

[diesel]

wait,

so another time that 'bad def' isnt the problem.

sigh.

Yep. Hopefully this is addressed in the 2nd gen car.

 

[Louis]

Great the 'poor Quality Def' is back, hit on the way to work this a.m. Last-week I called the dealership about the recall -we need to order parts, called today still no parts. Why did they send me a notice that the parts were available? And this is the dealership that can't change the oil properly... great. next closest dealership is 1hr away.

And so it begins, caught a P249D on the way home. Cleared it in the driveway, came right back on restart.
P249D -> Closed loop reductant injection control. control limit reached low flow detect.
We just stepped into winter a few days of freezing weather. I'm thinking heater also.
I filled the DEF last-night and cleared the code 1/2 way to work this am, stayed cleared, will monitor.
This would go hand-in-hand with the 'poor DEF' warning.

 

[diesel]

And so it begins, caught a P249D on the way home. Cleared it in the driveway, came right back on restart.
P249D -> Closed loop reductant injection control. control limit reached low flow detect.
We just stepped into winter a few days of freezing weather. I'm thinking heater also.
I filled the DEF last-night and cleared the code 1/2 way to work this am, stayed cleared, will monitor.
This would go hand-in-hand with the 'poor DEF' warning.

Keep us posted - this seems to be a different flavor of the issue. It almost sounds like the injector is clogged in this case.

 

[boraz]

Yep. Hopefully this is addressed in the 2nd gen car.

i would expect same amount of problems, all new parts gotta real world tested

but i would hope they would be quicker to fix things this go around.

 

[diesel]

i would expect same amount of problems, all new parts gotta real world tested

but i would hope they would be quicker to fix things this go around.

I think there's going to be much more of a spotlight on the new diesel. Time will tell how it does, though.

 

[DslGate]

Has to be costing them a ton of $$ on warranty claims on the CTD. @diesel, what did you finally do? The new Recall /Service alert may help you. I'd at least call and ask.

 

[diesel]

Has to be costing them a ton of $$ on warranty claims on the CTD. @diesel, what did you finally do? The new Recall /Service alert may help you. I'd at least call and ask.

The dealer put it in to see if GM would approve all or part of it, but it came back that I was just too far out based on mileage. I agree with them. I am 71K miles past the warranty coverage limit.