WebMay 21, 2024 · Use a toothbrush or small pipe cleaner to unblock EGR valve. Try to remove as much crud as possible from the valve. After the valve is completely cleaned and dried, reinstall it to the system and make sure all connections are in place. By now, the valve should work fine. WebCheck the EGR valve, hose or electrical connections, as necessary. P0401: Insufficient exhaust gas recirculation flow. Check the EGR valve and possibly clogged EGR ports or passages. P0402: Excessive exhaust gas recirculation. Check for a stuck-open EGR valve, an electrical short in a related component or even a misrouted hose in the system.
The basics of EGRs - what they do, how they work, how to …
WebJul 31, 2016 · I found out DO NOT use purple power at full strength it turned my intake horn in to a corroded mess that took some time to clean up. The simple green worked great think I used it at a 1:1 ratio you can prob dilute it with more water like 2 parts water and 1 part simple green and still get it clean. WebSep 16, 2016 · 6.7L Cummins' EGR Valve. Although it’s known for being one of the most robust engines to ever grace the ¾-ton and 1-ton truck segment, even the 6.7L Cummins has its fair share of EGR gremlins. The weakest link in the 6.7L Cummins’ EGR system lies in its EGR valve. The spring loaded, solenoid activated valve is prone to gumming up and ... flash beat drums
We bench-test diesel EGR Cooler cleaning solutions - MotorTrend
WebJun 22, 2024 · You will need to disconnect the electromagnet from the EGR valve, remove the few screws that hold it in place, and remove it. Once these simple steps are completed, now comes the time for cleaning. WebAug 27, 2024 · Symptoms of a bad EGR cooler. Usually, the first sign of failure is white exhaust smoke. This “smoke” is actually steam from boiling water or coolant. There are several possible sources for this steam, including head gasket failure, a cracked EGR cooler or condensation inside the exhaust system. When the coolant passages inside your cooler … WebOct 12, 2024 · Use a wire brush or pipe cleaner to scrape out the deposits, but make sure not to damage or gouge mating surfaces. Repeat the spraying and scraping until it’s clean, … flash beat drum toy