Starting System Check. GMC Truck GMC C-Series Medium Duty Truck B7 1999

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Controls - 7.4L 🢒 Starting System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

Visually inspect the battery hydrometer for green eye.

Battery hydrometer displays a green eye.

Battery Displays Dark or Yellow Eye.

Refer to Charging System Check in Engine Electrical.

Move the ignition switch from the OFF position to the START position and release.

Starter motor pinion gear engages the flywheel without noise, the engine starts, the pinion gear disengages from the flywheel without noise.

•	Starter Solenoid Does Not Click

•	Starter Solenoid Does Not Click

•	Starter Solenoid Does Not Click

•	Starter Solenoid Does Not Click

•	Starter Solenoid Does Not Click

•	Starter Solenoid Does Not Click

•	Starter Solenoid Clicks, Engine Does Not Crank

•	Starter Solenoid Clicks, Engine Does Not Crank

•	Starter Solenoid Clicks, Engine Does Not Crank

•	Starter Motor Noise Diagnosis

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.