Visit me at: http://www.ericthecarguy.com/ If you're experiencing poor performance, overheating, pinging, or having trouble getting up hills you might want to check to see if you have a restricted exhaust. An engine needs to breath which means that not only does it need to take in air but it also needs to get rid of the spent air, much like we do when we exhale. If it's not able to do that properly you'll experience all kinds of performance issues including lack of power. This video shows an easy non obtrusive way to check to see if you have an exhaust restriction using a vacuum gauge. A vacuum gauge can tell you a lot about how your engine is running including if you have a restricted exhaust. If you do find that you have a restriction you can confirm it by either dropping the exhaust at the manifold or removing an O2 sensor and taking it for a drive. If it runs better you likely have an exhaust restriction. Don't assume it's the catalytic converter though as I've seen mufflers and exhaust pipes cause restrictions as well. Here's a video on how to check your Catalytic Converter should you suspect it's bad. http://www.youtube.com/watch?v=9VZ5K8n5jj0&feature=youtu.be Stay dirty ETCG Discussion about this video: http://www.ericthecarguy.com/kunena/18-The-EricTheCarGuy-Video-Forum/42701-diagnosing-exhaust-restrictions#43854 Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.