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DEF heater failure and engine light

Jnich17
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redwngr Senior Enthusiast

redwngr

Posted
Posted
On 8/19/2018 at 8:36 PM, SILVER SLED said:

Dee Lete Dee Lete Dee Lete

No tunes available to do so on the L5P.

SILVER SLED Senior Enthusiast

SILVER SLED

Posted
Posted
16 hours ago, redwngr said:

No tunes available to do so on the L5P.

The truck in question is a 2015 with an LML.  LML's can easily have the DEF system deleted.  

  • 3 months later...
Cowpie Senior Enthusiast

Cowpie

Posted
Posted (edited)

Just came across an article that was published in the last couple of days where the EPA is now cracking down on those who are deleting emissions on diesels.  $4600 fine per occurrence.  $46,000 per occurrence by a shop.  The parent company of Bully Dog got whacked for 6.5 million dollar fine.   Might be just the EPA making an example of some to make others color within the lines, but one has to ask if they want to put their back end out there for the EPA to whack it.  

 

I understand why one would want to.  I am for eliminating the stuff.  But keep in mind, the EPA is looking to increase their bank account and they have turned their eye to these things long enough.   it would not surprise me if they strong arm shops into reporting of vehicles where the emissions stuff has been monkeyed with.  A real can of worms if there ever was one.

 

It would seem the best method to address the problem, with the least exposure to a problem, is eliminating the operation of some of this stuff via ECM software programming.  Still a risk, but if all the stuff is still on the vehicle, it is not as easy of a target.

Edited by Cowpie
  • 8 months later...
Barbara Martinez New Member

Barbara Martinez

Posted
Posted

My 2012 Chevrolet Diesel Silverado Truck 136,000 miles engine light and warning light for exhaust fluid issue.  Dealer says tank and heater part cost $300.  Total cost for job could run $1000.  Waiting for truck now.  Put in shop yesterday and won’t be ready until tomorrow.  Says guarantee for 2 years.  Had def injector replaced in October of last year and that costs $600.  Def sucks and should have recalls

  • 1 month later...
Tita New Member

Tita

Posted
Posted

I was wondering if i can still drive my truck if engine light is on about def redundant heater plz let me know

Tita New Member

Tita

Posted
Posted

My truck is 2016 gmc 3500 serria denali. Any advice? I could really use some about the def redundant tank heater issues

  • 4 months later...
ralanis6 New Member

ralanis6

Posted
Posted

I have a 2016 Chevy 2500HD and had this issue at 43,000 miles. Dealer replaced it and I am glad it was covered by warranty. Have not driven it much since then. 

  • 2 weeks later...
Phyxius New Member

Phyxius

Posted
Posted

I have a 2016 3500 and had the check engine light come on last week.  In the dealer right now posting this, as they're replacing the DEF heater. 44,433 miles

Colossus Senior Enthusiast

Colossus

Posted
Posted

Not surprised.  DEF heater has been a pretty common failure on the LMLs.  Had mine replaced twice on my 2012. 

  • 1 month later...
Jminter6001 Enthusiast

Jminter6001

Posted
Posted

Also have the 2015 LML.  I see where a lot of peoples trucks went into Limp mode once they got the P21DD code.  I never did. Drove it 1,000 miles and no limp mode.  But I changed the DEF heater myself and the code is still there.  So what could the problem be if it's not the DEF heater?  I know if I take it to the dealer they will try and get me to pay for another DEF heater. So I'm trying to avoid that.  Any ideas?

  • 1 year later...
GMCHD2015 New Member

GMCHD2015

Posted
Posted

Had my Def Tank Heater replaced last year under warranty. They gave me a 100000 mile extended on it. Def is highly corrosive.

They have to remove the tank and install waited 2hrs.

  • 4 months later...
JLP01 New Member

JLP01

Posted
Posted

I have a 2021 duramax 3500 with 11,000 miles. Having the same problem. Dealership called and can't get parts, so they are hoping to have it fixed some time in June. My truck is a sitting duck and I have to still make a payment on something I can't drive. I had to purchase another vehicle just to go to work. This is beyond frustrating to say the least... I just want to sell it! 

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