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Ghostdog · 04-29-2004, 01:13 PM

I have a 2001 Chevy 2500 HD and I started to hear the knocking noise and it has 62,000 miles ruffley I switched to the Highest grade gasoline and its gone.

04-29-2004, 01:13 PM	#70
Ghostdog Registered User Status: Offline Join Date: Apr 2004 Member ID: 14150 Pics: My Gallery Location: Rancho Cucamonga Age: 34 Posts: 6	I have a 2001 Chevy 2500 HD and I started to hear the knocking noise and it has 62,000 miles ruffley I switched to the Highest grade gasoline and its gone.