Question about 2000 Nissan Maxima

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My starter i had my altenator checked and my battery both in brand new condition i changed my starter and when the battery cable is placed back on the starter turns on withoput the key bein in the ignition i had the starter taken back out and tested its workin fine the old one was tested it dont work so i know i got the right part but why would it turn on and spin when the battery is connected without the key bein in the ignition ??could it be the wires are wrong even if its hooked up the same way the old one was??

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  • goodgirly75 Nov 08, 2008

    you got it exactly right its together on the starter and i have had someone else say the wires are backwards so i wanted some confirmation on this but if i reversed the wires would that cause my electrical stuff to fry? i mean if it turns out its a different problem?

  • goodgirly75 Nov 08, 2008

    so your sayin my switch could more likely be the problem not the wires switched? because i can have someone switch the wires but if that dont work im screwed ill have to get the ignition too and im poor so i hope thats not it. but if there is a short in the starter this is what your sayin to do to check it right? well i did take this new starter to have it tested to make sure it was runnin right and it is workin fine from what i was told when i seen them test it.....get back to me baby....Brandy

  • Loringh
    Loringh May 11, 2010

    when you changed the starter did it come with a new solenoid already mounted on the starter? If the answer is yes, then it is probably a hook up problem. If the answer is no then your solenoid is probable bad.
    Here's the deal on starter-solenoid operation. Because the starter needs so much current to operate,we cannot switch this much current thru the ignition switch. To overcome this problem, car manufacturers use a solenoid (actually a heavy duty relay). So,.... when you turn the ignition key to start your car, the key sends 12 volts to the solenoid (relay), the relay closes (just like a switch) and applies 12 volts at very high current to the starter. The starter cranks the engine and off you go...

    There sre usually 2 wire connections omn the starter. One, the big one has a wire coming directky from the battery and the 2nd, (a smaller one) comes from the ignition switch. If these wires got reversed the starter would run without a key in the ignition.

    Hope this helps Loringh



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Disconnect the negative terminal on the battery. Then disconnect both wires on the starter/solenoid
One of these wires is a big one that comes from the battery. It is probably a red wire and about the size of the wires that connect to the battery. The big wire goes to the larger terminal on the solenoid/starter.
This terminal has a larger nut that goes on the post. Hook this big wire to the big terminal. Now touch the negative battery wire to the - post of the battery. Just touch it, do not clamp it on. There should be no sparks when you do this, OK, now be sure this battery wire is NOT connected to the - battery post.
Now connect the smaller wire of the starter/solenoid to the smaller terminal on the solenoid. Put the nut on and tighten. Now, go back and TOUCH the battery ground wire to the - post of the battery. Again there should be no sparks. at this point you should be connected correctly.

Let me know how it comes out Loringh

Posted on Nov 09, 2008

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The wires might be fried also, check them with a meter to see if the smaller wire has voltage without key in. if so, the wire might be shorting out to 12 volt wire or the ignition switch is bad.

Posted on Nov 08, 2008


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