I took my 2002 Pontiac Grand Prix to Mataga GMC in Stockton. I was told that my catalitic converter was bad, so my mom and I purchased a new one from Kragen Auto Parts|. The next day June 15 I brought it into Mataga GMC to have it installed!. 5 hours later we were informed that it was repaired|. I took my mom to walmart which is accros the street, upon leaving to go home the car exibited the exact same simptoms;. I did not even travel 1/4 of a mile by the time this started/. We just barely maqde it back to the GMC repair shop;. Sofar... read full review »