Engine exhaust poor maintenance (Dieselpartsworld) 2016-02-28    

Engine exhaust poor maintenance
There are many reasons that cause the engine exhaust is not smooth, from all aspects of the comprehensive judgment of engine speed, load, speed, the following two fault engine exhaust is not smooth together to learn.
The engine exhaust is not smooth fault phenomenon 1
Engine idle speed was significantly lower than the normal value and rated idle bound idle amusement vehicle, poor acceleration, high load seater, but the operation smoothly.
fault analysis
Serious lack of idle jitter, high load power, while the speed is stable, close the typical characteristics of lax EGR valve.
The engine temperature of 50 DEG C, open speed in the 1500 ~ 4500r/min valve in EGR.
Medium speed EGR valve itself is open, so the EGR valve closed lax to moderate conditions when no effect.
Engine exhaust poor maintenance
Troubleshooting
EGR valve closed lax is due to the exhaust gas reflux of carbon deposition resulted in lower seat caused by uneven of, carburetor cleaning cleaning agent can eliminate faults.
The engine exhaust is not smooth fault phenomenon 2
The engine idle speed was significantly lower than the normal value and lower rated idling idling car between, no high-speed, automatic transmission without overdrive.