gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

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Idle Speed > < Electronic Spark Control Knock Sensor|Page 2107

G 2500 3/4 Ton Van V8-305 5.0L (1990)

  • Powertrain Management
  • Tune-up and Engine Performance Checks
  • Fuel Pressure
  • Fuel Pressure Test Port
  • Component Information
  • Locations

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Fuel Pressure Test Port: Locations

There is no Fuel Pressure Test Port on these vehicles. You must uncouple the fuel supply flexible hose in the engine compartment. Install fuel
pressure gauge J 29658B or BT-8205 between steel line and flexible hose to test system pressure.

  • Powertrain Management
  • Tune-up and Engine Performance Checks
  • Fuel Pressure
  • Fuel Pressure Test Port
  • Component Information
  • Locations

Idle Speed > < Electronic Spark Control Knock Sensor|Page 2107