Roadmaster V8-350 5.7L VIN P MFI (1995)
Volt Meter Gauge: Initial Inspection and Diagnostic Overview
Circuit Operation - Starter
Battery voltage is applied to the Ignition Switch at all times through Maxifuse 11. When the Ignition Switch is turned to "START" battery voltage is
applied through the closed contacts of the Ignition Switch, (through the contacts of the Theft Deterrent Relay. This relay is controlled by the Theft
Deterrent Module, (NON SEO)). Then it goes to the Starter Solenoid at terminal "S". When battery voltage is applied to terminal "S" of the Starter
Solenoid Switch, the Hold-In Coil and Pull-In Coil of the Starter Solenoid switch are energized with the Pull-In Coil grounded through the Starter Motor.
The coils, when energized, work together to pull in and hold the Plunger of the Starter Solenoid switch. As the Plunger is pulled in, it closes the Starter
Solenoid Switch contacts and causes the Shift Lever to rotate, engaging the Drive Assembly to the Flywheel. With battery voltage applied directly to the
Starter Motor through the closed Solenoid Contacts, the Starter Motor begins to rotate the Drive Assembly as the Drive Assembly comes in contact with
the Flywheel. The Pull-In Coil is de-energized by having battery voltage at both ends of the coil. The Starter Motor continues to rotate to crank the
Engine through the Drive Assembly-Flywheel gear combination.
Battery voltage is removed from the Starter Solenoid terminal "S" when the Ignition Switch is released from the "START" position. The Hold-In Coil is
de-energized and the return spring in the Starter Solenoid Switch causes the Plunger to disengage the Drive Assembly from the Flywheel. As the Plunger
returns, the Plunger opens the Solenoid Contacts removing battery voltage from the Starter Motor.
