Author: Rich Diegle

Yeah, but it’s losing top-end power. Here’s how to diagnose and fix it. Owners of 2009 Dodge Ram 1500, 2500, 3500 or Cab & Chassis 4500 vehicles equipped with the 5.7 liter Hemi engine may experience a loss of top-end…

A running compression test is a great tool for diagnosing density misfires. A running compression test or dynamic compression test is an often overlooked engine diagnostic tool, but it can pinpoint the cause of a misfire when the usual tests…

Remember when every go-fast part listed in a performance catalog was guaranteed to give you at least 10 percent to 15 percent more power? I used to think that if I could install just a few of those high-performance parts…