"mommyo3" wrote
> I posted a few months back about a loud noise and you guys said it was
> my catallytic converter. Well, you were right, but Ford won't fix it
> under warranty for just making noise. They said the engine light has
> to come on specifically for that kind of emissions problem, so I've
> been driving it that way. Ford suggested that it was just rattling
> around down there and that they could put some clamps on it for a
> price. We haven't done it yet.
Why not? Did you at least crawl/reach under there and see if the heat
shields are loose? Mine were, so I bought some long hose clamps from
the plumbing department at Home Depot and strapped them on.
Cost me all of $5.00
> Tonight, we tried to leave on a road trip and had to turn back because
> there was a hissing sound when we accelerated, and we lost a lot of
> power. The engine sounds like it's working hard when you first accelerate
> and the hiss noise is continuous as long as your foot is on the gas.
If it isn't the heat shields, then it's likely the "honeycomb" substrate inside
the converter that has come loose, and is rattling around. It's supposed to
be attached in place with some super-duper adhesive/epoxy/cement stuff.
If that lets go, the honeycomb is free to slide back and forth, bounce around,
and generally pound itself until either it's a solid lump, plugging the flow of
exhaust through the converter, or pieces of it break off and plug the converter
outlet, or the mufflers.
> The truck got pretty hot and we had to let it cool down before heading back
> home. Any chance that this is part of the catallytic converter problem?
> Sounds logical to me, but I don't know anything!!
Engines are air pumps. Air goes in one end, exhaust comes out the other end.
If the air can't get out, it's not going to run too well, is it?
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