Express 1/2 Ton Van V8-305 5.0L VIN M SFI (1998)
Fuel Injector: Testing and Inspection
FUEL CONTROL
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Fuel delivery is controlled by the control module system.
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The diagnosis of fuel control starts with Engine Cranks But Will Not Run. This table will test the fuel system to determine if there is a problem.
Refer to Engine Cranks but Does Not Run. See: Computers and Control Systems/Testing and Inspection
FUEL INJECTOR
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Testing of the fuel injector circuit is located in the Fuel Injector Circuit Diagnosis Table. See: Computers and Control Systems/Testing and
Inspection
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A fuel injector which does not open may cause a no-start condition. An injector which is stuck partially open could cause loss of pressure after
sitting, resulting in extended crank times on some engines. Also, dieseling could occur because some fuel could be delivered to the engine after the
key is turned OFF.
