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#29400: Special Coverage Adjustment - Diesel Emission Fluid Tank Reservoir

24703 Views 20 Replies 14 Participants Last post by  sailurman
New Special Coverage on the emission reduction fluid tank reservoir due to the issues with the heater elements. Looks like GM is moving through the emissions system piece by piece...... (Note: This also applies to the 6.6L Duramax Express, Savana, Silverado, and Sierra.)
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2014 Cruze Diesel, 2007 Cobalt, 1981 Camaro Z28, 2017 Volt
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God dammit, seriously? So the recall replaced 2 of the 3 sensors that are bad, and then this covers the DEF reservoir...so literally all that **** I went through in the summer was a waste.

Does this mean I should get a full refund for everything we paid for (O2, NOx#1, DEF Reservoir)?

The only thing not covered, that we "paid" for was the NOx#2 sensor, and they just cleared the code instead of replacing it.
 

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I understand why you feel that way; however, perhaps partly due to your experience as well as many others is why they are providing this extended coverage.
I would definitely agree. Better late than never, for sure. They might as well just do it all at once, but eventually I foresee all the parts being covered.
 

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Old thread, obviously - but the DEF heater is part of this assembly, is it not?

I know ours was throwing a DEF heater voltage code a while back, but it was not one that initiated countdown.

My wife was driving home on Sunday and the CEL popped on, along with the "Service Emissions Systems, XXX miles to 65 mph limit" - when I cleared the CELs it had before about a week ago (they did not come back until yesterday), it had 6. My scanner could only read one of those, and that was an EGT sensor (likely the after-SCR one, because the exhaust is entirely disconnected - bolts broken - post SCR, so it has no reading). The others I have to imagine were related to either that, or the DEF.

Better yet, driving it elsewhere yesterday (since we still had plenty of miles left in the countdown) the **** countdown went away entirely on its own. It's going to the dealer tomorrow, and if it is related to the heater, I need to know what all the special coverage covers (hehe). When they told me about it the last time it was there (for the battery replacement), they said that wasn't covered, which I don't think was correct...
 

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The countdown came back yesterday, so at least the dealer will see it. Pretty sure there's only a sensor or two that will cause it, otherwise it's probably the DEF reservoir...
 

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We had ours replaced as well, and it sure seems like anyone else who had theirs replaced has not had issues (with the DEF reservoir) since. So maybe that is not what our issue is...but I won't know until they pull the codes.

The special coverage is 10 years or 120k.
 
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