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Why does my oil light come on all the time?

Discussion in '80-Series Tech' started by Outback, Sep 19, 2003.

  1. Outback

    Outback

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    My oil light comes on, sometimes only 1000 miles after an oil change! It doesn't use oil to make a difference, maybe .5 quart or so between 3K mile changes :rolleyes:

    It's just annoying me to death :mad: What gives? I check the oil regularly. Anyone else have this problem?

    Jody.
     
  2. cruiserdan

    cruiserdan SupportingVendor Emeritus Supporting Vendor Moderator

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    Hi Jody,

    I assume you are talking about your 93 FZJ80? The light indicates a low oil level in the oil pan. If you are sure that your oil level is correct you may have a failing sensor.
    The part number is 89491-60010 and it lists for $312.23. It is also possible that the wires leading to it may have a problem.

    Dan.
     
  3. Outback

    Outback

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    CruiserDan,

    How far down does the oil have to get to "normally" actuate the oil light?

    I'll check into the wires as soon as I can though...

    Jody.
     
  4. cruiserdan

    cruiserdan SupportingVendor Emeritus Supporting Vendor Moderator

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    Some say about a quart low, I've filled mine a quart low during an oil change to see if mine would come on and it did not. I have had it come on during an extreme nose-down descent in the Rio Puerco. (spooky steep). I guess it could vary from engine to engine. I would guess anywhere between 1 to 2 quarts low at the max. If the level were close to low, some sudden movements (like a fast turn) would flash the light momentarily.
     
  5. landtank

    landtank SILVER Star

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    Have you checked the level while the light is on? Just to be sure you don't have an oil return issue.
     
  6. landtoy80

    landtoy80

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    The oil sensor float on the Toyota Previa van needed to be replaced, at least that is what the used car dealer said. The low oil light was on. I removed it and it has a float that slides on a shaft. It would get stuck on the shaft. I sanded the shaft with fine sand paper till the float would slide on the shaft. Cleaned it up and installed. Worked fine after that.
    I would assume that the floats are about the same on the Previa and 1FZ, C-Dan???
     
  7. cruiserdan

    cruiserdan SupportingVendor Emeritus Supporting Vendor Moderator

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    Kurt,

    The part numbers are different but the function is the same. Your fix would certainly be worth a try before the billfold comes out.