Egr Valve Inspection


  1. INSPECT ELECTRIC EGR CONTROL VALVE ASSEMBLY

  2. INSPECT NO. 2 EGR VALVE ASSEMBLY

Egr Valve -- Inspection



1. INSPECT ELECTRIC EGR CONTROL VALVE ASSEMBLY

  1. Visually check the electric EGR control valve assembly for deposits.

    NOTICE:
    1. When cleaning the electric EGR control valve assembly, make sure the valve is completely closed.
    2. Do not forcibly open the valve as it may be damaged or deformed.
    3. When cleaning the electric EGR control valve assembly, use a piece of cloth soaked with cleaning solvent. Spraying the solvent directly onto this part or soaking the part in solvent may damage the part.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Emission Control.Emission Control System.Egr Valve Inspection

  1. Hold the electric EGR control valve assembly up to a light, and then from the side indicated by the arrow in the illustration, visually check that there is no gap between the valve and body.

    OK:
    No light passes through (there is no gap between the valve and body).
    HINT:
    Light passes through part even if the valve is completely closed as there is an opening in the seal ring of the valve, this is not a problem.
    Text in Illustration
    *a
    		Seal Ring End
    *b
    		Gap
    *c
    		CORRECT
    *d
    		INCORRECT
    If light passes through (there is a gap between the valve and body), replace the electric EGR control valve assembly.


2. INSPECT NO. 2 EGR VALVE ASSEMBLY
NOTICE:
  1. Do not forcibly open the valve as it may be damaged or deformed.
  2. When cleaning the No. 2 EGR valve assembly, use a piece of cloth soaked with cleaning solvent. Spraying the solvent directly onto this part or soaking the part in solvent may damage the part.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. When a vacuum of 69.7 kPa (523 mmHg, 20.6 in.Hg) is applied to the diaphragm chamber, check that the valve turns and air flows out.

  1. Maintaining the above conditions, check that there are no leaks and the valve does not return.

  1. Check that the valve does not have heavy carbon deposits and is not stuck.
    If necessary, replace the No. 2 EGR valve assembly.