I took my Pick up to the Dealership, they told me it was a Cat Coventer and couldn't help, which it ended up 325 dollars for not able to do it stuff Then took it to Performance Muffler, on 32nd St. They told me that it sure was not a Cat Converter, all was working just fine. Performance Mullfer recommends Shadow Mountain Auto Service. You guy was a profession and find out the trouble, it was a great job. I know I will be doing business again with you guys plus tell others. Once more Thanks.