Exhaust Diverter Valve

L

LUXHTRD_54

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I don't have any pictures but this is the thing that almost hits the crankshaft pulley mounted on a tube that connects to the right and left manifolds. What the hell is its purpose and is it necessary?

While installing the new Steeda pulley I had to remove the valve. The valve itself is aluminum and the tubing it is connected to is stainless. This mixture of metals is a no no and hence the "meshing" of the two parts together resulting in the threads of the valve breaking off into the tubing. Luckily I was able to completely salvage the tubing and it is currently capped off and the two vacum hoses going to it are plugged.

The car runs perfect without it and I haven't thrown any codes.

BTW I love the pulley!
 
RE: Exhaust Diverter Valve

It's called the Secondary thermactor pump.
It injects air into the exhaust for the first 30 seconds of operation for emissions.??

Stupid thing, I rip them off and weld them shut. I hate doing pullies on a 96-98 Mark!
 
RE: Exhaust Diverter Valve

only problem is that if you unhook the wires from the pump itself (to stop that damn noise when the thing is running) it throws a code.
 
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