LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Isuzu >> 1985 >> I-Mark 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EGR Function Testing - Diesel >> Component Testing >> EGR Valve
April 5, 2026: LEMON Manuals is launched! Read the announcement.

EGR Valve

  1. Detach vacuum hose from EGR valve and connect outside vacuum source, such as hand pump with gauge. Apply vacuum, EGR valve should not leak down.
  2. While applying vacuum, watch movement of valve stem. At 13.8 in. Hg (I-Mark), stem should move diaphragm to full up position. If valve does not respond as indicated, replace EGR valve.
scientia non olet · About LEMON Manuals