How to Clean a Diesel Fuel Injector

  • 2-4 hours
  • Intermediate
  • 25-50
What You'll Need
Cleaning kit
What You'll Need
Cleaning kit

Diesel fuel vapors can accumulate and eventually clog the diesel fuel injector. If your fuel injector needs to be cleaned, you can do the job yourself. Here's how you clean the diesel fuel injector.

Step 1 - Disconnecting

The first step in cleaning a diesel fuel injector is to undo the fuel pump and place the return line for the fuel. Another option is to fix a U tube.

Step 2 - Connecting

Now connect the diesel fuel injector cleaning kit to the port located on the fuel rail. Take the cap off from the fuel tank. The diesel fuel injector cleaning kit will create high pressure on the fuel system. Make sure to turn off the ignition.

Step 3 - Letting the Diesel Fuel Injector Solution Perform

Open the valve on the diesel fuel injector cleaning kit. Make sure the pressure reading touches the point that is apt for your vehicle. Turn on the engine to facilitate the flow of the diesel fuel injector cleaning solution. It will take around five minutes for the entire solution to get used up.

Step 4 - Final Step

Reconnect the fuel pump and place the fuel cap. Connect the pressure regulator. Test the functioning of the diesel fuel injector.