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  1. G

    bad cat?

    My 98 Expo with 4.6 is hesitating when I'm driving. The idle feels fine, but when it is in gear it is sluggish. The plugs and wires are fine. I'm thinking the cat is clogged or something. The exhaust doesn't seem to be blowing alot when revved. Any ideas? Oh yeah, there is 150,000 on the...
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