Question about 1993 Ford Tempo

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Battery/Alternator/wiring???? I just got a 93 tempo as my winter beater and recently i have been experiencing a few problems. About 2 weeks ago my car wouldn't start, so i go somebody to come and boost me up, took quite some time to actually start it but it finally started. So the same day we decided to get a new battery since an old man owned the car before me and didn't drove it for 2 years. We got the battery on and the car was starting without problems. We had notice that the car was stalling here and there (usually when the car was on reserve or when idleing) but didn't think anything of it. On xmas eve we just stopped at my family's house to say merry xmas after work and left the car running cuz i was only expecting to be a few minutes and the car stalled. So we tried boosting the car and it wouldn't work but the radio was the fuel pump had kicked on, and we knew it was a new battery so we knew it was something else. We checked the alternator and it wasn't pushing out any juice. So we finally had the car going after 2 hours and we just left it running and I could see the lights in the car dimming and finally the car died again. We just got an alternator from a junk yard and switched it but the car still won't start, and the alternator was tested before we got it and it was fine. So im running out of ideas of what to check. Im thinking wiring???

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  • soniablancha Jan 01, 2009

    when we got the car to start we would take the ground off the batterie and it would stall so that way we knew it was the altenator took it in and it was only pushin 11 amps and now we got a nother one but when we put it on as soon as we plugged in the second plug into the altenator it started smokin so i think the new altenator is good and its cause of the wires that it must have fried the altenator in the first place but we are tryin to figure out where abouts we should check the wires cause everywhere that we have checked looked to be alrite but we dont know if maybe one of the plugs that plug into the altenator would be gone we would like to know how much it should read when you test the wire if ne one happens to know... and by the way its a 90 altenator on there cause its a v belt style altenator and im pretty sure that alot of the things under the hood have been changed around so if ne one knows what the wires are suppose to read please let me know

  • Mike Butler
    Mike Butler May 11, 2010

    Have you started the car at all since new alternator ? Checked voltage when running?


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Basically the easiest way for you would be to test your voltage when vehicle is off & record it. Shut all accessories off, Now start the vehicle & check voltage while running, it should come to say 13.5 approx. which would indicate that it is charging. One other thing I'd be tempted to try, is hook test light to good ground & then touch negative terminal while it's off the battery, just to make sure there isn't a wiring mix-up sending current back to negative. If light lights up, somehow power is getting fed back through ground, time to look for that source. Do it with key on & off just to be sure. Don't you just love it when someone plays with wiring and you need to figure out what the heck they did?

Posted on Jan 01, 2009

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