Hello all, I need help and fast. I have just bought 1998 Voyager 3.3. It drove ok, a bit sluggish intermitentley. today however I drove twice, the second time it seemed restricted, the exhaust was louder and the cat was glowing red. I would appreciate any help ASAP as I have no other car to use. I don't have much money now as used it to buy the car.
Many thanks.

 

those are common problems associated with the dreaded cracked flex plate. the easiest way to determine if the flex plate is broken is with a dual trace oscilliscope. you could have a plugged cat which a back pressure test is the best method of diagnosis.