LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1995 >> Forward Control 6.5 Y, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - 6.5L Diesel >> Basic Fuel System Checks >> Fuel Pump Flow Test
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Fuel Pump Flow Test

  1. Disconnect fuel line at fuel filter inlet. Disconnect fuel injection pump electric shut-off solenoid wire (Pink).
  2. Crank engine 15 seconds. If fuel pump does not supply about 1/2 pint of fuel in 15 seconds, go to FUEL SYSTEM PRESSURE TEST .
scientia non olet · About LEMON Manuals