Cool Road 4000 Come on, don't go.

1, check the oil supply system, replace the fuel filter, clean the fuel injector and check the oil supply pressure of the oil pump;

2, check the ignition system, check whether the ignition coil, spark plug is not working properly;

3. Check the air intake system, the air filter is dirty, the vacuum tube is aging and leaking, and the throttle valve is cleaned, which affects the insufficient air intake;

4. Check the exhaust system to see if the aftertreatment system is blocked, which will affect the smooth exhaust. Suggest cleaning or replacement;

5, check the electronic control system, computer board whether there is a fault code, affect the normal running of the vehicle.