| Re: Lost Power That lends more credence to the cat converter restricted issue. Sometimes the converter will rattle when hit with a rubber mallet confirming broken strata within. They say with a vacuum gauge hooked up to a constant vacuum souce like one at the throttle body, then the engine revved up quickly, the reading should never fall to zero if the exhaust is not restricted. I've never confirmed this myself. Any good muffler shop can verify for free. |