on a car with dual cats?

[JeffP1167]

What would happen when one engine banks cat plugs? this is on my V-6 windstar. would the ecm detect misses cuased by it in any way? No glowing cat has been noticed so could it still be plugged?

 

[TimAT]

On a single cat, when it plugs or just gets restricted, power goes away- big time. I'd suspect the same would be true with dual cats. Plugged bad enough, and it would either be a "no start" or pop and bang while it's running.

 

[JeffP1167]

On a single cat, when it plugs or just gets restricted, power goes away- big time. I'd suspect the same would be true with dual cats. Plugged bad enough, and it would either be a "no start" or pop and bang while it's running.

I notice my plastic intake manifold get hotter then hell after like 10 minutes of running to the point its almost to hot to touch yet no coolant is plumbed through it. Massive amounts of oil have collected in the manifold, one bank of plugs is far different then the other side, oil is seeping on the area of the plug you would put a socket on, missfire detected in #2 cylinder yet gets spark, new plugs, wires, coil-pack.

so Im wondering if that sides cat is plugging and causing these issues somehow.

this is a 85k mile mini van

 

[mrvette]

Get the sawzall out and cut the pipes....ALL of them....going to have to change all of them, I bet.....here in Florida, we just cut them off, and go to the muffler shop have Ricky weld it back with no cats....done...

make money on the old cats for metal value....HERE they steal the old cats from Ricky's shop....believe it or not....

:gurney:

 

[JeffP1167]

If they are plugged will just by a magnaflow direct fit for 400