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Starters and Ignition Systems

How do you know which terminal on a starter is positive and which one is ground?


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2015-07-15 20:50:52
2015-07-15 20:50:52
THE LAST ANSWER IS CORRECT OR MORE TO THE QUESTION THERE IS NO GROUND WIRE ON A STARTERFollow the wire. One will go to ground, one to hot.

Most starters are marked with a + (positive) and a - (negative) on the terminals themselves,just like your battery. Usually the larger terminal where the battery cable connects to the starter is the positive terminal. .

On a most starters both posts are hot(+) and the casing is grounded(-) .Usually the bigger post is a direct wire from the battery and the smaller post is a remote wire from the starter switch.

Follow the positive battery cable wire (+) to the other end, that should lead you there. Because it will be connected to the starter solenoid. Please take note, a solenoid mounted on a starter has no ground wire, but a solenoid separated from the starter and mounted on the firewall does.

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Look for a + by the positive terminal and a - by the negative terminal, or red for positive, black for negative. Some batteries have the positive terminal protruding and the negative terminal flat. Or you can get a meter that will tell you which is which,

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Use a jumper wire from the battery + (pos) terminal to the positive on the blower motor, and run a - (Ground) wire from ground on the motor, to chassis or frame.

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You start by disconecting the negative - battery terminal. climb undre the car and dixconect the 2 whires going to the starter. Then unbolt the starter from the transmission. replace is the same way, just oppisite. If you don't even know where the starter is than, follow the positive battery cable till it stops. that is the starter.

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Some never used positive ground and always had negative ground. The last year that I know where positive ground was used was in 1969 when Jaguar switched to negative.

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Hook up the positive battery terminal first then the ground. Make sure you know wich cable is wich. The ground ( usually black on American cars, brown on European ) will lead from the battery negative pole to the body of the car or be grounded on the engine probably near the alternator. The positive cable ( usually red on American cars, black on European cars) will lead to the starter solenoid. If you aren't sure consult your repair or owner's manual but don't get them backwards whatever you do.


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