Ticking Sound in Duramax Diesel Engine

Volume 1 Issue 3 - Duramax Issues and Answers

My ‘04 DMax has a 2004 ticking sound in the engine: I visited several forum sites and info is varied. I have 44K on the unit and the ticking is there as a single, RPM-varied ticking sound. Everything I have read (including copies of GM tech bulletins) would indicate this is part of the DMax. Any other advice would be appreciated.
   

Will OnStar Tell GM if You Install a Power Programmer?

Volume 1 Issue 3 - Duramax Issues and Answers

If I install a programer on my 2008 GMC 3500, will my OnStar System tell on me and possibly get me in trouble with my warranty?
   

Low Coolant Indications on Duramax Diesel

Volume 1 Issue 3 - Duramax Issues and Answers

I have an 04 DMax and I get low coolant indications and it is actually a little low (1/3 gallon). I have had a pressure check from a dealer and they say everything is fine. What could be causing this situation?
   

Thinking About Lowering the Suspension on My Duramax

Volume 1 Issue 3 - Duramax Issues and Answers

How do I lower the suspension on my 2003 2500HD to maintain or even improve ride handling qualities? Please give me information on shock absorbers, swaybars, bushing materials, etc.
   

Why No 4.10 GM Rear End on Duramax/Allison

Volume 1 Issue 3 - Duramax Issues and Answers

Why does GM only offer the 3.73 geared rear end behind the Allison. I would love to have the 4.10 instead.
   

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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