Gmc Duramax Code P21dd

How To Repair Code P21dd In 2013 Duramax Youtube

How To Repair Code P21dd In 2013 Duramax Youtube

2015 Duramax P21dd P20b9 Youtube

2015 Duramax P21dd P20b9 Youtube

P21dd P20b9 3500 Hd Duramax Youtube

P21dd P20b9 3500 Hd Duramax Youtube

Duramax Lml 12 16 Def Tank Heater Replacement Youtube

Duramax Lml 12 16 Def Tank Heater Replacement Youtube

Highlighted Part Def Temperature Sensor For Select Chevy Gmc Models Youtube

Highlighted Part Def Temperature Sensor For Select Chevy Gmc Models Youtube

P20b9 Duramax Full Repair Of Def Heater Youtube

P20b9 Duramax Full Repair Of Def Heater Youtube

P20b9 Duramax Full Repair Of Def Heater Youtube

So my vehicle will be there over two weeks and not very happy.

Gmc duramax code p21dd. My 2016 sierra 2500hd has 176 000 miles on it already and recently started eating parts. Scan showed trouble code p21dd. Check engine light came on and local parts store says it read code p21dd. The latest part to fail was the reductant tank heater def heater.

After checking the net and finding you guys and reading your stories i decided i must have def problems. My 2015 duramax is throwing p21dd code and p21ddpd code. 2007 5 gmc black sierra slt 3500hd srw c c. Hey guys my check engine light came on about a week ago.

Runs good still but was thinking it may be something simple before it goes to dealer. It a 16 silverado 3500 with a duramax. 2015 silverado 2500 crew cab single rear wheel lml. Did some research and looks like it was a somewhat common issue on some lml d max trucks.

61000 miles on 2015 duramax. I had the check engine light come on. Is it under warrenty yet. We use cookies to give you the best possible experience on our website.

I talked with a chevrolet service writer and discussed what i had discovered from you guys. I have reset it. Duramax repair reductant system issues. Duramax code p21dd def tank issue.

Upon cold start the check engine light came on with code p21dd. 4x4 lmm z71 diy stock airbox mod afe proguard 7 oem drop in efilive ecm atp heavy tow tune with turbo brake efilive tcm duramax tuner dhd cold side high flow intake pipe dhd pcv re route airdog 4g100 castrol hypuron vecton 15w40 synthetic blend oil donaldson p550832 2 qt oil filter. After a little reading i learned that this can result in limp mode. New down pipe and 5 inch exhaust new up pipe cold air intake new garret stage 1 turbo airdog 165 lift pump egr delete and efi live.

Vehicle has been there since april 1st and waiting for part to show up the week of the 14th from gm. Oreilly checked it and came up with a p21dd code. Diesel reductant tank heater circuit 1 signal low was the translation.

2015 2500 Check Engine Code P21dd Chevy And Gmc Duramax Diesel Forum

2015 2500 Check Engine Code P21dd Chevy And Gmc Duramax Diesel Forum

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Duramax P21dd Def Heater Reservior Replacement Youtube

Duramax P21dd Def Heater Reservior Replacement Youtube

2014 Ctd Error Code P21dd Emission Reductant Tank Heating System Urea Page 8 Chevrolet Cruze Forums

2014 Ctd Error Code P21dd Emission Reductant Tank Heating System Urea Page 8 Chevrolet Cruze Forums

I Have A 2014 6 6l Duramax With Codes C0131 P128e And P21dd The P128e I Think Sorry I Didn T Finish Typing The

I Have A 2014 6 6l Duramax With Codes C0131 P128e And P21dd The P128e I Think Sorry I Didn T Finish Typing The

Maintaining The Diesel Exhaust Fluid On A Gmc Sierra Hd Youtube

Maintaining The Diesel Exhaust Fluid On A Gmc Sierra Hd Youtube

2015 2500hd Throwing Code For Def Heater 2 Chevy And Gmc Duramax Diesel Forum

2015 2500hd Throwing Code For Def Heater 2 Chevy And Gmc Duramax Diesel Forum

Def Heaters On Nationwide Back Order Chevy And Gmc Duramax Diesel Forum

Def Heaters On Nationwide Back Order Chevy And Gmc Duramax Diesel Forum

Check Engine Light On The Denali Duramax Already Youtube

Check Engine Light On The Denali Duramax Already Youtube

2015 Duramax P202e Code Fix Youtube

2015 Duramax P202e Code Fix Youtube

6 Codes Were Up On My 2013 Gmc Sierra 3500hd With 6 6 Turbo Diesel P2493 P245c P24c4 P2493 Pd P245c Pd P24c4 Pd

6 Codes Were Up On My 2013 Gmc Sierra 3500hd With 6 6 Turbo Diesel P2493 P245c P24c4 P2493 Pd P245c Pd P24c4 Pd

2015 Duramax Reduced Power Chevy And Gmc Duramax Diesel Forum

2015 Duramax Reduced Power Chevy And Gmc Duramax Diesel Forum

Chevy Gmc 2500hd Duramax P20b9 00 Reductant Heater Problem Part Ii Youtube

Chevy Gmc 2500hd Duramax P20b9 00 Reductant Heater Problem Part Ii Youtube

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Http Askatech Com Askatechlive Forums Resourcehandler Ashx A 12667

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