Review on 🔧 Enhanced Performance with Actron CP7838 Professional Fuel Pressure Tester by Kenneth Cotton

Bought for use in my 01 GM truck and also in Tahoe and Yukon. After 16 years the Yukon fuel pump failed, I borrowed a pressure tester from O'Reilly which left a lot to be desired, noticed that the gauge reading fluctuated when I moved the hose or gauge. That same month, Tahoe Fuel Pump started trading and bought this gauge. Lubricated the o-ring and checked all three cars. The sensor worked perfectly. I found an O'Reilly pump that I fitted to a Yukon (Precision brand) that was 50psi idle and 45psi off. Tahoe's new AC-Delco pump showed 51 idling and sustained 45, but it would fill up to 60 when the ignition was turned on and flatten out at 55 when primed. My truck, still on the factory pump, held 49 hp. at idle and quickly venting when turning off the ignition, it looks like pump 3 is getting close to me.