Blocked muffler/ No muffler - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mtruckr · 12-15-2011, 02:23 PM

There just seems to be 'something' holding back the truck... we're thinking it may be a blocked muffler passage. It might be original ('69 3/4 ton), and we get a nice blast of black from the pipe when it gets revved in 'park'. It's a 305 V6, so just one pipe. (We are aware of the limitations on that motor.

)
Other aspects have been tended to... it's been on the road for a year. Starts and runs fine...

I'm thinking of simply removing the muffler (just the muffler) and running it for a few days with nothing... is that unreasonable? Is it gonna be THAT loud?

Thanks-

12-15-2011, 02:23 PM	#1
mtruckr Registered User Join Date: Nov 2010 Location: roswell georgia Posts: 164	Blocked muffler/ No muffler There just seems to be 'something' holding back the truck... we're thinking it may be a blocked muffler passage. It might be original ('69 3/4 ton), and we get a nice blast of black from the pipe when it gets revved in 'park'. It's a 305 V6, so just one pipe. (We are aware of the limitations on that motor. ) Other aspects have been tended to... it's been on the road for a year. Starts and runs fine... I'm thinking of simply removing the muffler (just the muffler) and running it for a few days with nothing... is that unreasonable? Is it gonna be THAT loud? Thanks-



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.