FixVault

System Check

  1. Check control lever position during engine starting and operation. Control lever should move smoothly to each position as ignition key position is changed. See Fig 1 .
    Fig 1: Glow Plug System Wiring Diagram
    G35637
  2. Start engine. Unplug oil pressure switch connector and ground to engine. Control lever should move to stop position. If not, check control unit and controller.
Fig 2: Testing Glow Plug Control Unit
G35636
Fig 3: Injection Pump Control Lever Positions
G34612