Question about 1989 Ford Tempo

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Just changed alternator in 99 Taurus, battery light is still on.

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  • James Anderson May 11, 2009

    I have the same problem with my 1989 Ford Tempo. I was driving home last night and noticed the battery light had come on. I am wondering if it is just the altenator, can I just replace the brushes or am I in for a major repair? Is it more economical to just trade the altenator for a rebuilt. Any other suggestions would be very grateful.



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Check with a test light, Power on the main post. Then unplug the three pin connector, you need to test for power to the regulator. I think the wire is green/red. It's not the white wire. The green/red wire is fed from the alt fuse in the underhood fuse box. The white wire is just a jumper wire to the one pin connector next to the three pin. The other wire goes to the light. If one of the pins in the Three pin connector( like i said i think its the green wire) and the main stud both show power, the take the alternator back and get another one.

Posted on Mar 03, 2009


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SOURCE: My 1999Ford Taurus SE battery light keeps going

check for loose connections
ill cause the light to go on and off
anything on battery terminals or off the alternator itself....hope it helps

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SOURCE: 2006 Ford Taurus. Not getting any voltage from

look for a fusable link (fusible wire) between the alternator and battery .. check grounding strap from engine to chassis/battery neg

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Check your battery cables, too.

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SOURCE: 6 cylinder 1999 Ford Taurus Car

There are two bolts holding it on the mounting bracket. They are long 7 or 8 inch bolts. Remove these and disconnect the wires from it then pry it up between the alternator and the mount. It sounds more like a coil or plug wire problem to me as far as the now start when wet. But you definately have a battery drain issue.

Posted on Sep 08, 2010

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