How to Test an EGR Valve Without a Vacuum Pump – Step by Step Guide
If your car is turning on the ‘check engine’ light, there’s a good chance it could be a malfunctioning exhaust gas recirculation (EGR) valve. Unfortunately, the EGR valve is hard to access and very sensitive. Pay attention to the specific steps needed to test it properly — otherwise, it’s a costly waste of time and …