How to clean the Egr valve after the common rail EGR valve is broken

The EGR valve is also called the exhaust gas recirculation valve. It is a mechatronic product installed on a diesel engine to control the exhaust gas recirculation amount of the intake system. It is a very important and key component of the exhaust gas recirculation device. Its function is to control the amount of exhaust gas entering the intake manifold so that a certain amount of exhaust gas flows into the intake manifold for recirculation.

EFI common rail egrThe consequences of a broken valve

A broken EGR valve will affect the normal operation of the engine. The car will experience unstable idling or stalling, fault lights flashing, oil burning, power drop, black smoke from the exhaust pipe, etc., which will affect the performance of the car.

If the EGR valve is broken and remains open, it will cause the engine to stall at idle speed, unstable idle speed, weak acceleration or increased fuel consumption. In addition, it will also be accompanied by the problem of engine power drop;

If the EGR valve is broken and kept in the closed state, it will have an impact on the exhaust emissions of the car. The emissions may not meet the standards and will not pass the annual inspection.

egrHow to clean the valve

Most of the EGR valve failures are carbon deposits and blockages in the channel. Clean or replace the EGR valve in time to ensure that the engine works normally. To clean the EGR valve, you can use carburetor cleaning agent to remove the carbon deposits in the intake passage, throttle and EGR valve; for the connecting pipe between the EGR valve and the intake passage, the pipe is relatively slender and has many bends, which can be sprayed and cleaned After spraying, burn it, and tap it to remove the internal carbon deposits after natural cooling.