Mike's Workshop Manuals: Service manuals for every vehicle
Home >> GMC >> 2003 >> Savana G2500, Van Cargo Extended, 4.3 X, 4L60E/M30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Component Tests - 4.3L >> Fuel Systems >> Fuel Injector Balance Test Without Special Tool >> Test Description

Test Description

The number below refers to step number in diagnostic procedure.

  1. 3  - Engine Coolant Temperature (ECT) must be below operating temperature in order to avoid irregular fuel pressure readings due to hot soak fuel boiling.

Fig 1: Injector Balance Test Example
G00011504Courtesy of GENERAL MOTORS CORP.
scientia non olet · About Mike's Workshop Manuals