Chevy and GMC Duramax Diesel Forum - View Single Post

fenmor · 03-09-2007, 10:35 AM

Engine noise most audible when engine coolent temps of 70 C or 158 F , or higher and from idle to approx. 1500 RPM.
Make sure your out of your truck and down by the front drivers wheel well.

** This applies to all Duramax 6.6 engines ** LBZ , LB7 , LLY , LMM

They claim that all engines have this noise , just that its more audible in some than others.

03-09-2007, 10:35 AM	eBay Motors #3 (permalink)
fenmor Member Join Date: Feb 2007 Posts: 41	Noise Engine noise most audible when engine coolent temps of 70 C or 158 F , or higher and from idle to approx. 1500 RPM. Make sure your out of your truck and down by the front drivers wheel well. This applies to all Duramax 6.6 engines LBZ , LB7 , LLY , LMM They claim that all engines have this noise , just that its more audible in some than others. Last edited by fenmor : 03-09-2007 at 10:42 AM.