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[GMCnet] Exhaust problem [message #355440] Sat, 06 June 2020 17:27 Go to previous message
Ray Erspamer is currently offline  Ray Erspamer   United States
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma:
Senior Member
I'm wondering if anyone can shed any light on this.  I had to replace the passenger side muffler.  Now when I gun it and leave off the gas I have a loud RAT TAT TAT.  Same when the engine is under load or backing up the hill into our driveway.  I've laid under the coach with my wife gunning it trying to find a leak or where it's coming from.  No luck.  Any ideas?Sent from my U.S.Cellular© Smartphone
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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431
 
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