How To Test Glow Plugs In Engine?

How to Test Glow Plugs

  1. Take out your multimeter. Basically, a multimeter is just a black box with electronic circuitry within it that is used to test electrical circuits.
  2. Locate the glow plugs if you have them. The position of the location may be found in your vehicle’s repair manual.
  3. Remove the glow plugs from your engine and put them somewhere safe. To find out where to look, see your owner’s handbook.
  4. The resistance value of your multimeter may be found by doing the following: Cross the two lines of communication

To check your glow plugs, just connect a 12-volt test light to the positive battery terminal and wait for the light to illuminate. Then, detach the wires from each of your glow plugs and attach the probe of the test light to the terminal of the glow plug itself to complete the procedure (not the wiring harness).

How do you test the resistance of a glow plug?

In general, though, you may determine the resistance of a glow plug by performing the following procedures: Check to ensure that the vehicle’s ignition is in the ″OFF″ position before continuing. Remove the electrical connector from one of the glow plugs and set it aside. To test for resistance, use the ohms setting on your digital multimeter (DMM).