Check the battery cables for looseness and/or corrosion
Most likely the starter solenoid is going bad
Modern starters include: * the starter motor... a motor * the solenoid, which engages the electrical current to the starter AND engages the gear to the flywheel. * the bendix, which is a gear that engages the starter to the flywheel.
solenid switch engages and disengages the bendix on the starter
The Bendix on a Ford starter is a one-way gear that engages when the starter is activated. and the Bendix is perhaps one of the most common starter failures.
A "Bendix drive" is the term used to describe the part of the starter motor which engages an disengages from the flywheel when cranking the engine, therefore it is part of the starter motor assembly and would be located behind the starter motor, between it and the flywheel housing.
Starter motor ring gear is a large gear cog that fits around the circumference of the flywheel on rear of engine. When the starter motor spins, its 'Bendix' engages this gear to rotate the crankshaft..
GM usually uses a combination solenoid/switch/relay located beside the starter. One end engages the starter. The other end connects the battery to the starter motor.
The starter motor is located between the transmission and the engine which engages the starter clutch with the flywheel, which rotates and starts the engine.
Voltage flow into a starter motor, never out of it. Use the voltmeter to measure the voltage at the starter motor before starting to crank and then whilst it is cranking. (Before cranking, the voltage appears across the starter motor relay only.)
either clean and tighten cable connections or get battery tested. if not the battery, it is the solenoid or the starter If it is clicking and not starting at first, but starts after a few tries, its your starter taking a dump. Replace it.
It has either a bad starter solenoid, which is the smaller cylinder on the bigger starter body, or a starter relay which is found if you backtrack the thicker power wire from the starter motor solenoid.
Solenoid - Engages to etend the pinion.Pinion - A small gear that extends out and meshes with the flywheel gear.Flywheel - Meshing with the starter pinion gear to spin the engine over.Battery - Supplying voltage to the starter.BrushesArmature
its on the left side behind the motor but before the transmission