MotorVac DieselTune 4000 - Manual (Page 19)

200-8241 REV. 2 19 DieselTune 4000 Operators Manual
Diesel Fuel System Setup Procedures
1. Start the vehicle and allow the engine to reach as close as possible to normal operating temperature .
2. Turn the engine OFF when normal operating temperature has been reached.
3. Attach the unit to a vehicle battery by connecting the red battery clip to the positive ( + ) battery
terminal and connect the black battery clip to a solid ground. 8 - 30 Volts DC. The unit’s FUEL
LEVEL display should display ON.
4. Remove the vehicle's fuel cap to relieve fuel tank pressure, if necessary.
5. Verify that the engine is no longer running.
6. Disconnect the vehicle’s fuel lines going into the engine’s supply pump and the return line
coming from the injectors (if applicable). There are now four open ends to work with:
Supply Line / Feed Return Line
- From the tank - From the fuel return line
- To the supply pump. - To the tank.
IMPORTANT
Do not perform the setup or cleaning process if the
vehicle’s engine oil or coolant level is low. If
necessary, add oil and/or coolant to the vehicle. Stop the
cleaning process if the engine is low on oil or overheats.
IMPORTANT
Try not to allow excessive fuel loss when connecting or
disconnecting the hoses from the engine or the engine may be
difficult to start.