Effective Performance Modifications for Duramax

Volume 1 Issue 1 - Duramax Issues and Answers

What’s the most effective modification that I can do to improve the performance of my Duramax?
   

Will an aftermarket exhaust cause Diagnostic Trouble Codes?

Volume 1 Issue 1 - Duramax Issues and Answers

Will an aftermarket exhaust cause Diagnostic Trouble Codes?
   

Will aftermarket power programmers/chips affect my warranty?

Volume 1 Issue 1 - Duramax Issues and Answers

Will aftermarket power programmers/chips affect my warranty?
   

My Duramax goes into limp mode all the time.

Volume 1 Issue 1 - Duramax Issues and Answers

My Duramax goes into “limp mode” all the time.  What’s wrong?
   

How can I prevent my LLY Duramax engine from overheating?

Volume 1 Issue 1 - Duramax Issues and Answers

How can I prevent my LLY Duramax engine from overheating?
   

Is there a special warranty on Duramax fuel injectors?

Volume 1 Issue 1 - Duramax Issues and Answers

Is there a special warranty on fuel injectors?
   

Should I install a secondary fuel filter?

Volume 1 Issue 1 - Duramax Issues and Answers

Should I install a secondary fuel filter?

   

Why do I need low-ash oil for the LMM Duramax?

Volume 1 Issue 1 - Duramax Issues and Answers

Why do I need low-ash oil for the LMM Duramax?
   

Will Ultra-Low Sulfur fuel reduce the life of my fuel injectors and pump?

Volume 1 Issue 1 - Duramax Issues and Answers

Will Ultra-Low Sulfur fuel reduce the life of my fuel injectors and pump?
   

Should I Use Fuel Treatments?

Volume 1 Issue 1 - Duramax Issues and Answers

Should I use fuel treatments?
   

Joel Paynton is an award-winning GM technician who specializes in Duramax fuel systems. He also does custom programming for any GM powertrain. Visit him on the web at www.payntonperformance.com.

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