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What to do with 2002 Prius that needs too much work?

Discussion in 'Generation 1 Prius Discussion' started by kbbpll, Aug 31, 2023.

  1. kbbpll

    kbbpll Junior Member

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    @ammdb If I understand you correctly, once the Prius is started it can run without being connected to the 12v battery? If so, I never knew that! Not that I would do it, but that means there's an option to drive it once one way.

    @JohnPrius3005 I have been getting their number first, info about whether they're a DIY or recycler, name, then I have them text me and continue contact that way. Thanks for the tips on batteries etc. I looked at the MightyMax and the terminals don't match, so getting one of those seems to involve the same thing as taking a 12v out of another car temporarily and hooking it up with jumper cables. I think the important thing for now is that it does run, so it might be more attractive to a buyer. My sentimental enthusiasm from yesterday is wearing off... Good advice on the title etc. I am going to make a buyer fill in their section on signing over the title, make them fill out a bill of sale, and get a photo of their drivers license. Meanwhile I'll expand my marketing efforts and call the shops I've dealt with in the past for leads, etc.

    Quick question - is there any market for the doughnut spare? That's easy to pull out but I don't want it sitting in my garage for the next decade either.
     
  2. JohnPrius3005

    JohnPrius3005 Active Member

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    As far as I know there is no market for donut spares. But ... you could take off a regular wheel and replace it with the donut spare especially if you are junking the car. There is some market for Prius rims. Some Prius owners - like me - keep a full size wheel - rim and new cheap tire - in the back of the car to use instead of a spare. Junkyards sell these rims for $50 - $100 on the west coast. Yeah, you can take the bolts which hold the battery terminal cables tight on regular Prius batteries and thread these bolts thru the post holes on the Mighty Max, and attach the cable terminals this way. Yes, if it runs that is definitely better. For how far and how long is questionable, but in theory it doesn't need to be towed away. Do check with your DMV about title. With the docs you describe you'd have a strong argument that you got rid of the car, but if there's a better way which precludes any possibility of argument later then that is better obviously.
     
  3. Trombone

    Trombone Member

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    Not sure the donut spare will fit a regular wheel, or vice versa. When I substituted a standard 175/65R14 tire for the donut, I had to buy a wheel to fit. Make sure of your measurements first!
     
  4. kbbpll

    kbbpll Junior Member

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    Tried it, no, the Prius does not keep running when I disconnect the jumper cables. I must have misunderstood what @ammdb said.

    After running for a few minutes I got the red triangle and red car with exclamation! icon. Shut it off, disconnected jumpers, reconnected, started again, same thing after a few minutes. One symptom noteworthy is that when I start it, it hesitates for a few seconds with nothing happening, then lurches on with a beep of the horn and the wipers twitch. When I sit in it while running, it seems to lurch slightly forward and back. I put the emergency brake on just in case! Oh well, it's not worth diagnosing these things, the car is toast anyway as far as this owner. Really wanted to get to 300k but maybe next time. :)
     
  5. ammdb

    ammdb Active Member

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  6. kbbpll

    kbbpll Junior Member

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    Thanks, hopefully that's useful info for someone. Looks like a lot of hassle to replace the 100A just to find out what else is wrong with the car, again. Is there another way that fuse (and in my case three others) could get blown besides crossing the jumper cables? I didn't think I was that dumb, but let's ask my wife.
     
  7. JohnPrius3005

    JohnPrius3005 Active Member

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    Anything is possible ;-) Sometimes fuses just fail. And unless you have personally been standing right there whenever your car has been worked on, including by Toyota, you can never know if 12v DC power has been applied in reverse polarity. 100A is a pretty big fuse though... And fuses are there to prevent damage from the power source "sending out too many amps" (eg feeding a short)

    As noted you can quite easily check if the 100A fuse is ok by hooking up a 12v bat, using a voltmeter to read the volts, then starting the car. If the car is charging the 12v bat (through the 100A fuse) the voltage at the bat will be now the charging voltage, about 14v
     
  8. kbbpll

    kbbpll Junior Member

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    I do have a voltmeter somewhere. I'll see if I can check this tomorrow. I suppose it's useful info to give a potential DIY. I doubt if a recycler cares if a fuse is blown.
     
  9. kbbpll

    kbbpll Junior Member

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    I did the voltmeter thing as above. At Subaru, off, Subaru battery is 12.48v. Connected jumpers to Prius cables, at Prius cables bouncing around 12.2v. Prius on - 10.86v at Prius cables and 11.86v at Subaru. (Subaru was off the whole time). Would there be any physical evidence that the 100A is blown? If somebody puts a new 12v in there and drives away, I assume it will suck down the 12v and possibly die.

    By the way, it started twice and died shortly after. Third time it ran long enough to measure and kept running maybe 5 minutes until I shut it off.
     
  10. ammdb

    ammdb Active Member

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    The fuse is in the fuse box under the hood. It's bolted in so can't be pulled out, but you should be able to see through the little window if it's blown. If fuse looks good the issue might be the DC to DC converter inside the inverter. Car won't make it very far at all on the 12V battery alone, so not in drivable condition.

    [​IMG]
     
    #50 ammdb, Sep 16, 2023
    Last edited: Sep 16, 2023
  11. kbbpll

    kbbpll Junior Member

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    Looks blown to me due to the dark gap; if not let me know. Thanks.
    IMG_8526.jpg
     
  12. ammdb

    ammdb Active Member

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    Yup, blown and a real PITA to change. Not sure why Toyota designed it so the entire fuse box has to be taken out to access terminal screws.
     
  13. JohnPrius3005

    JohnPrius3005 Active Member

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    So now your car at least becomes a better gamble for a DIY fixer. He can gamble that changing that fuse, or even jumping across it, will result in a running car ;-)

    My guess is the fuse is made difficult to access because 100 amps even at just 12v could well be lethal. So if you're going to mess with that fuse or it's holder make ultra sure ALL sources of electric power are disconnected completely!!
     
  14. kbbpll

    kbbpll Junior Member

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    I looked at the steps in the link you posted and watched some of a video (a different Toyota but looked like similar steps). I'm pretty handy with small projects but to me this looks like bloody knuckles, a lot of swearing, torn hamstrings, and a bolt or two lost somewhere in the bowels. And then whatever blew the 100A will just blow it again. @JohnPrius3005 sure it might give someone "hope" but the other issues still remain - HV battery throwing P3006 and P3009, and cat throwing P0420. I do have a guy interested who has one wrecked from front end collision but it has a relatively new HV battery etc, so he could swap that and the rear end subframe etc onto this one. I have a feeling he's going to disappear though - he's 30 miles away and thinks he can drive it that far.
     
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  15. JohnPrius3005

    JohnPrius3005 Active Member

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    Yeah, if I was "that guy" I'd bite the bullet and tow it, or get it towed, or be set to tow it if it broke down. Good luck. And you're right, doing this kind of car work is not really much fun and everything you describe is quite likely to happen. You've had pretty long life out of that car.
     
  16. ammdb

    ammdb Active Member

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    The fuse is cheap, like around $2, so might be worth the bloody knuckles and swearing (there will be swearing) to at least get the car in a drivable condition.
     
  17. kbbpll

    kbbpll Junior Member

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    I'm sure you're all holding your breath for an update. The DIY guy finally showed up Sunday around 5pm after I hung around pretty much all day waiting to hear from him, he spent an hour going blah blah blah, we shook on a deal and he said he'd be back Monday for it, he never showed (excuses), said he'd be here Thursday (today) between 2-3pm, I planned my day around that, not a word from him, finally I called him at 3:30, he was going to rig up a battery with jumper cables but he doesn't have jumper cables (plus more excuses), so he'll get those and more blah blah blah he won't be here until 5:30 at least. I mean, the guy has had four days to get jumper cables! And then what? He's going to replace the 100A fuse, which I'm pretty sure he's never done before, and get it out of here before dark? Not a chance. I say forget it.

    Then this other guy who would give me $500 for it, suddenly that's if I drive it to his shop. If he has to tow it, $450 now. The guy had gone on and on about how for $500 he wouldn't easily be able to turn his trailer around on my road, and how he wouldn't be able to put it in neutral if it wouldn't start, and more blah blah, so I got another 12v battery charged up, proved that I could drive it back and forth in my driveway, and I told him I'd drive it down to a large parking area nearby where he could do doughnuts with his trailer to his heart's content. But no, hooking up his trailer is such a hassle, it's still $450.

    After all this jerking around over a few hundred dollars, I think I'll just donate it to NPR or Habitat. Thanks for letting me vent.
     
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  18. rjparker

    rjparker Tu Humilde Sirviente

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    Actually not likely to be lethal unless you are a piece of wire or some circuitry in the path of a dead short. More than a few of us have touched the positive of a 12v battery while our body was grounded. Touched a battery with short circuit capabilities of over 2000 amps - like every Prius 12v battery. Our body resistance, even wet, is high enough with 12v that we don’t even tingle.

    However we could be quickly burned holding a wrench that provides a short circuit between the positive battery terminal and the car body. Often done without removing the negative first. An inaccessible fuse link is primarily there to prevent a tool short circuit with the battery still connected. Even then a fusible link at the battery (sometimes bypassed) should save the day.

    Good plan.
     
    #58 rjparker, Sep 22, 2023
    Last edited: Sep 22, 2023
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  19. kbbpll

    kbbpll Junior Member

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    IMG_8549.jpg
    Goodbye Moonbeam. What a great car. 21+ years, 295k miles, lots of memories. Road trips all over the west. Two kids in baby seats all the way to driving it as their first cars. Hope it can live on as an organ donor. Here's to you, Moonbeam.
     
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  20. bisco

    bisco cookie crumbler

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    great run!