Check Valve Inspection: Inspection

How to use this service information .

1. Check Valve - Inspect 1

   Preconditions 

   • Check Valve Removed
   • • -

       Check Valve A - Refer to: Intake Manifold Area (2.0L Engine) (2024 2025) or Intake Manifold Area (1.5L Engine)

     • -

       Check Valve B - Refer to: Intake Manifold Area (2.0L Engine) (2024 2025) or Intake Manifold Area (1.5L Engine)

   Courtesy of HONDA, U.S.A., INC.

   Procedure/Specifications 

   1. Connect the vacuum pump/gauge, 0-30 inHg as shown.

   2. Apply vacuum and check the gauge.

   Specifications 

   Object	Specification
   Check Valve	Vacuum held

   Result 

   • If it is abnormal, replace the check valve.
   • • -

       Check Valve A

     • -

       Check Valve B

2. Check Valve - Inspect 2

   Preconditions 

   • "Check Valve - Inspect 1" is completed and has tested normal.
   • Check Valve Removed
   • • -

       Check Valve A - Refer to: Intake Manifold Area (2.0L Engine) (2024 2025) or Intake Manifold Area (1.5L Engine)

     • -

       Check Valve B - Refer to: Intake Manifold Area (2.0L Engine) (2024 2025) or Intake Manifold Area (1.5L Engine)

   Courtesy of HONDA, U.S.A., INC.

   Procedure/Specifications 

   1. Connect the vacuum pump/gauge, 0-30 inHg as shown.

   2. Apply vacuum and check the gauge.

   Specifications 

   Object	Specification
   Check Valve	Vacuum not held

   Result 

   • If it is abnormal, replace the check valve.
   • • -

       Check Valve A

     • -

       Check Valve B