DEF Problems

[TAGLARRY]

Here is what the Chevrolet.com site says about DEF freezing (apparenlty they were wrong):

Q. Will DEF freeze?​

A.

Yes, DEF will freeze—at approximately 12ºF. If DEF is frozen, the vehicle will start as it always has. As soon as the vehicle is started, the DEF tank and lines are electrically heated to ensure adequate DEF delivery in cold weather. The DEF thaws with no degradation. Remember, since this system was designed to operate in cold weather, there is no impact on cold-weather engine operation.

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Q. Does DEF expand when it freezes and if so, how does it impact the tank?
A. ​

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Yes, DEF expands when it freezes. The vehicle’s DEF tank and all DEF packaging is designed to accommodate any expansion that may result from being frozen.

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Q. C an a freeze-point improver be added to the DEF to keep it from freezing?
A. ​

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No, doing so would alter the DEF mixture balance potentially triggering an “EXHAUST FLUID QUALITY POOR” DIC message.


Here is what Fleetguard says about DEF freezing.

Q. What is the freeze point of DEF?
A. A 32.5% solution of DEF will begin to crystallize and freeze at 11 deg F. At 32.5%, both the urea and water will freeze at the same rate, ensuring that the fluid does not become diluted or over concentrated.
Q. With a freezing temperature of 11 deg F or -11 deg C, what happens to the
operation of the vehicle if the DEF freezes?
A. If the DEF freezes, it will not inhibit the operator from starting the vehicle. DEF​

thaws quickly once you start the vehicle.

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[BROKER]

See now you know why I said you can't help him.

He's vague about his problem leaves out ALL the information and THEN when you give him the PROPER possible fix he tells you he already did it.

Instead of TELLING everyone whats going on, the corrective approaches or steps he's taken ALREADY he screws you around being a Joker. He's a dumb dumb. :rofl:


It's like he's testing you.Attention whore must not be getting his fix elsewhere.
He's a Ford guy at heart.

I see ya still pissed since ya got called out on the free parts carpet with your boss Diesel Place Nick , how did he work out for ya .:rofl:


Best thing for short guys like you is to stay in your own 2001 threads , since you have nothing to add in a 2011 thread .

 

[MACKIN]

I see ya still pissed since ya got called out on the free parts carpet with your boss Diesel Place Nick , how did he work out for ya .:rofl:


Best thing for short guys like you is to stay in your own 2001 threads , since you have nothing to add in a 2011 thread .

Nah not at all. How did it work out? Not so good but I don't blame Nick I blame Baby Boy for the sell out but who cares.Free parts? I dunno where that comes from still today as I was never the recepitent of free parts except a Quad box. But I was a guinea pig and went through alot of bullshit with it.

I'm just busting your chops ,I have nuttin better to do!

But your right I really don't know much about the 2011's,yet as many others. I did post a PDF here about the system somewhere with a little information.

I really do like the new GM trucks and would like to own one but I cannot justify the purchase I don't really need one. Old Black Beauty still looks new and is running great!

Good luck finding a fix ,eventually GM will figure it out so mean while buy a Dodge. I'll see you around cupcake ready to sling some poop your way you big Phoney! When are you going to start posting up pictures of Odometers? :angel: