Undercoating diesel GMC truck for Noise
Man, I thought that noise was the reason we bought those diesels :laugh: Undercoating the hood will add a lot of weight and the shocks may not hold it up or is it proped up with a rod? Bet this is your first diesel
You'll get used to the sound and be just like "Tim The Tool Man" :approve: Be sure to crank it very early ever morning in the campgrounds and let it idle for at least 45 min so all can hear it :evil: Undercoating the firewall may help but, keep it off the various sensors