Engine Mechanical problem
2001 Infiniti I30 6 cyl Front Wheel Drive Automatic 108, 00 miles
Car will not start. Replaced battery two days ago. Worked for a short time. Car quit last night. Checked alternator. Meter shows 13.9 loaded and 13.7 unloaded. Turn the key and all you hear is a loud " click" with no starter rotation. Attempted several times with no starter rotation, just the loud click.
Connected jumper cables from another car that was running. Turned key, starter turned and car started without trouble. Checked battery again and alternator again. Brand new battery checks ok. Alternator checks ok. What is wrong here? Is it the starter, the relay, or the ignition switch?
Its probably the starter motor and the added juice your giving it is enough to engage the solenoid. The way to check it is to make sure you still have 12 volts at starter fat wire when cranking and also make sure the smaller wire stays hot when you are on crank position, but I think you will find that its a bad starter motor. When they made these starters they used a thin round disc of copper in the solenoid that rotates and is supposed to make good electrical contact when the solenoid is engaged but this piece gets arc marks on it and occassionally will hit those arc marks and not make a good enough connection.