jump out the solenoid or relay. This will close the circuit for the high current.
Jump the starter solenoid Take jumper wire from Battery + to trigger wire to starter (mounted on top of starter)
The most important consideration when purchasing a jump starter is power. How much power is the jump starter getting to the battery? Many manufacturers only offer battery booster packs that have only 900 peak amps and maybe 200 cranking amps.
A battery jump starter works by taking the charge from another battery, such as in another car, and passing it to the dead battery. When the charge is sufficient in starting the dead battery, it should then start charging itself as the engine runs.
If the starter is bad no. Check battery, starter and solenoid to be sure which is bad.
Aplly battery voltage to it, it should jump, engage.
Jumper wire from coil + to battery+ Jump starter solenoid - Jump small trigger wire to starter connection
Flat battery or sticky starter motor / solenoid - try re-charging battery or get a jump start Flat battery or sticky starter motor / solenoid - try re-charging battery or get a jump start
If it jump starts, the problem is probably either the battery or a corroded battery connection terminal.
Starter motor problems, charging system problems, wiring and connection problems between battery, alternator and starter. To many possiblities to list. If the battery is still charged and you need to jump the car to get it to start you have a bad starter. Now you say how can that be? it starts when its jumped? Correct the starter is drawing too much power"amps" and having a second battery "the jump" appx doubles the amount of amps to the starter allowing it to start. Replace the starter and problem will go away. Besides it wont take too long before a jump wont allow it to start.
If the battery is stone dead it won't take a jump. If the battery has some life in it check for dirty or loose battery connections. If the battery and connections check okay it could be a bad starter.
Try getting a jump start. Could be a bad battery. If your battery is good, then you will need to get a new starter. It may be the Starter or the battery make be dead,
If the battery tests good and battery cables are clean and tight at both ends and you are jumping the starter solenoid correctly with no results, you probably have a bad starter/solenoid.