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Discussion Starter · #1 ·
Every once and awhile my battery and e brake light have been coming on,in my 86 sr5 4runner the battery volt gauge says its charging fine.My battery died on me (it was old so I bought a new one and had it tested at the shop it was fine,alternator was fine.)
The lights stay on until I turn it off and restart it. Whats going on?Thanks <IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/beer.gif" border="0">
 

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there is a wire that runs from the battery to the fuse box under the hood. mine broke off last summer about a year ago. then last saturday when i was on my way back form wheelin it broke off again. well i fixed it better this time an made it longer an moved it to a junction box i have for my accesories. basically a line run from the battery to a little box for amps. its like a circuit braker for when there it too much juice.

check that wire out it should be your cheap fix unless your altinator is shot! <IMG SRC="smilies/biggrin.gif" border="0">
 

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Discussion Starter · #4 ·
I'll try pulling the batt cables the next time it goes on and I'll check that wire to thanks
 

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Mine did it, the alternator was charging intermittently. Replaced the alt, problem went away.
 

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Pook---your brake fluid is low
 

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Originally posted by Todd:
<STRONG>Mine did it, the alternator was charging intermittently. Replaced the alt, problem went away.</STRONG>
<FONT COLOR="Red"> Same here.. the brushes in my alternator had worn too short to make good contact anymore. I bought a set of brushes for $5.50 and soldered 'em in and been running fine ever since... <IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0"> </FONT c>
 

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Originally posted by ZUK:
<STRONG>Pook---your brake fluid is low</STRONG>
What he said. The Toyota designers? tied the brake and charge idiot light circuits together, causing them to interact in strange ways. If the external voltage regulator (used on some years) goes bad, for example, both lights come on.

Wasn't this discussed earlier this week?
 

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Mines was doing the same thing. change the altinator 2mo ago(checker) Problem went away about 2wks ago the lights would come on for 1-2mins Change belts,added brake fluid it still happens only about once a week. Any other ideas?
 

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If the brake fluid is low, the parking brake light comes ONLY. Slick nailed it, it's the brushes in the alternator. If you don't want to solder, go to the dealer and get the brush holder assembly and it drops right in. Was like 13 bucks last time I bought one.
 

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If your alternator is OK: Run a new thick wire from the post on the alternator, directly to the "+" on the battery. Make sure to clean the post on the alternator and clean your battery posts. If that still doesn't work, replace your battery w/ an Optima.

BTW, I'm assuming you have an internal regulator on the alternator.

[ 11-02-2001: Message edited by: marco ]
 

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You prolly have mud in your brushes,very common occurance after wheeling in or around water days later. The mud gets into the brush holder and dries causing the brushes to stick and not make contact. It doesnt sound feasible but it really does happen,i have replaced many sets of brushes and it is the ceapest way,assuming the other parts of the alternator are in good shape.ie bearings, rotor area where brushes ride,this can be turned down some they usually have a groove after a few miles anyway.
Could be a bad alternator also..wouldnt be the first one i seen, has a warranty Right??

Have the auot parts check it out for you.

Gary
 
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