LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Renault >> 1981 >> LeCar 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Air Injection System >> Testing >> Check Valve
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Check Valve

  1. Remove check valve from system.
  2. Blow through valve in direction of air pump air flow. It should flow freely.
  3. Turn valve around and blow through opposite side. No air should go through.
  4. If valve acts in any other way, replace it.
scientia non olet · About LEMON Manuals