I have an '05 GMC 2500HD with a LLY duramax. My question is related to a Catalytic Converter. Under the truck, in front of the muffler, there is an enlarged can that some have told me is a cat converter. Is this true? And if so, shouldn't there be a sensor attached to it? There are no plugs or wires coming off it. My truck is registered in California.
Dec 6, 2008 at 4:36 PM
