6. Fuel blocking murderer

Fuel blocking murderer—Inferior filter?

A truck driver reflects no matter how to speed up the truck, the highest speed is 1800 rpm. What cause the insufficient oil pressure? Let's find the truth with JUNHONG. 

Insufficient oil pressure results in limited speed 

He firstly thought it's maybe caused by common-rail system failures, and it's not after checked by maintenance man. The first step is to check the oil-water separator, the top rubber gasket has been corroded, very inconvenient to dismantle.

Inferior oil-water separator

Inferior diesel fuel filters

Inferior filters result in many testing problems

Genuine spare parts

After testing, all fuel and water-oil filters has almost been completely blocked, which makes the poured out diesel become milky white a lot of emulsion, which means there must be problems in fuel oil itself. Filters almost can't be used again, can only be replaced by new ones. 

Blocked Oil pump results in oil shortage 

After fuel pump teared down, we found a lot of impurities blocked in pump port. And the pump is almost impossible to ensure sufficient fuel supply, while the truck during normal running. Coupled with the seriously blocked oil-water separator and fuel filter, the entire fuel system has very small fuel flow. In this case, the engine is only able to be started, almost impossible to run in ideal performance. Maintenance man gave a professional clean-up for pump and replaced with genuine fuel filter, the limited engine speed problem has finally been solved. 

Authentic filter ensure the oil safe 

Genuine filters can effectively filter the impurities and water inside fuel to protect pump nozzle, piston rings and other parts from wear and clogging, also filter out diesel iron oxide and other trace elements.