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Thread: MechanicallyDecline's 1990 4Runner repair(s) log

  1. #21

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    So got to thinking, haven't really stopped thinking about it yet. Here are my thoughts, dismissing the alternator and battery. Electrical draw over night or a co worker mentioned starter relay.

    Reason for throwing out battery, I tossed the battery in another 4runner after starting with an older battery, new battery fired up quick. Voltage checks in over 12.4 every time I check it too.

    I don't know much about the relay. Everything I've read about the relay is if its bad, the starter wouldn't crank at all. Just click.

    Over night draw, going to start the 4runner tonight, let it run for 10 minutes, turn it off and unhook the battery. Will reconnect in the am and see if it starts.

  2. #22

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    Just unhooked the battery after a trip to dinner. Threw the multimeter on it before I disconnected it. 12.77 on the multimeter. Ill hook it up in the morning and see if it starts.

  3. #23

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    It started. Looking like a overnight draw on the battery. Will need to find the time to pull fuses and locate it.

  4. #24

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    Use a test light and see if you can pinpoint the draw. If not might need to find someone with an amp clamp or buy one yourself.
    Marc<br />96&#39; T100 SR5 4x4<br /><br />Other rides:<br />00 Honda 416EX

  5. #25

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    For now ill put the multimeter on the battery, then pull fuses till the draw disappears. Once I know what fuse it is, then ill need to get technical. Been watching how to's on YouTube but its always a simple light switch lol

  6. #26

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    Sounds like a good plan.
    -------------------------
    Steve
    1993 4runner, SAS, 3.0L, Auto Tranny
    2007 4runner, stock. For now.

  7. #27

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    Quick update. Still hunting down the starting issue. Ended up fixing the + cable that runs from the batt to the fuse box. PO did a hack job on splicing in new wire. Attempted to replace the whole wire but was unsure of how it actually came out. Bolt holding it in looked like it would be a PITA to get out, so I properly spliced in a new section.
    Didn't fix the issue, talked to a buddy who has recommended replacing all the grounds. That will be address soon.
    Today though, driving home with the family, took a right had turn, 4Runner dies mid turn. Was able to coast into a dirt lot. Tried to restart, would crank but not fire. Finally was able to tow it home this evening and will be diagnosing it for a possibly faulty fuel pump. I'll check the fuse and relay as well as listen for the pump to kick on before going any further. I'll probably take the time to replace the fuel filter and possibly plugs and wires with rotor and cap while I'm at it.

    Need to get this figured out so I can dive in over my head on replacing an auto trans on my wife's escort. Fun times.

  8. #28

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    I don't remember if the gas pump is in the tank, but if it is, you might want to replace the gas level sending unit while you're in there. It wears out over time.
    -------------------------
    Steve
    1993 4runner, SAS, 3.0L, Auto Tranny
    2007 4runner, stock. For now.

  9. #29

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    Bad ground for sure, maybe bad fuel pump. Make sure to replace sending unit, not worth the headache later.
    Marc<br />96&#39; T100 SR5 4x4<br /><br />Other rides:<br />00 Honda 416EX

  10. #30

    Re: MechanicallyDecline's 1990 4Runner repair(s) log

    Ok, guess the listening test doesn't work. Fuel pump doesn't turn on until the key is turned to start, so that test is mute. Went to locate the fuse but it isn't labeled. Any idea which fuse the FP is ran off of? Also, did a search at autopart stores online for the sending unit but have struck out. All I have found is a repair kit but no replacement kits.

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