SC90_Pete
Registered User
Is there anyway to tell if they are plugged without taking apart the exhaust? I've noticed my car has been sluggish lately and I will be changing plugs and wires soon, after all I'm still running the stock motorcraft wires/plugs after 65k miles. However I doubt that all of my cars sluggishness is due to plugs and wires so I think it might be the cats. While I was changing my oil today I knocked on the cats with a ratchet and one sounded a little different than the other. I plan on doing exhaust this summer but just want to know if this is the problem or if there is something more serious wrong with my 90 sc.