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1990 4runner Electrical Problems

Old 04-23-2008, 05:42 AM
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Question 1990 4runner Electrical Problems

I am currently looking at a 1990 SR5 3.0 auto 4 runner that is for sale locally. It has 156K miles on the truck and 77K on the motor. The price is right, however, it has a flood title and has some electrical problems. The current owner says it will start and run fine on a clear dry day but it will not start if it is damp out. He also said that the battery will go dead if it sits for more than a few days. Can anyone help me diagnose these problems before I buy it so I don't purchase a money trap. Should I even consider this or just walk away from it. I think I can get it for less than $2,000 which is why I am considering it.
Old 04-23-2008, 06:19 AM
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I'll probably get flamed for this, but the 3.0 problems alone would be enough to get me to walk away, add to that a flood damaged title and electrical problems and $4.00/gal gas and they would almost have to pay me to take it. But I am kind of fussy now. Flame suit on
Old 04-23-2008, 06:20 AM
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I would pass just because I don't like to buy somebody else's headache.

Rob
Old 04-23-2008, 06:21 AM
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Cant really diagnose the exact problem. My solution invloves a lot of hard work but should get the problem resolved.
I would get to every electrical connector I can find, open it up, blow out any moisture, spray a water repellent or electrical contact cleaner in there and reconnect. You may eventually find the problem.
Old 04-23-2008, 05:28 PM
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I wonder if they ever put another computer in it?
Old 04-23-2008, 05:40 PM
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You could check with the local stealership and see how much it would cost to replace the wiring harnesses. If you do it yourself, it may still be a good deal. If you go that route, make sure you blow out all of the connections before you plug in the new wiring. You could find a new/used computer and if any sensors are bad, they would show themselves better after putting the new harness in. That would eliminate the guesswork. I don't know if this is something that you would take on but, it is one option.
Old 04-23-2008, 05:50 PM
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I just bought a '95 that runs great, almost zero rust, mint tailgate... for $1500 CDN. There are others out there. For your $2k, this one would be near-mint.

Walk away.
Old 04-24-2008, 04:49 PM
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offer 1k, no more. you could part it out and make your money back. just a thought.

lee
Old 04-24-2008, 06:56 PM
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I'd walk away myself. I just finished looking for an electrical problem which NOLTZ and GOAT help...thanks again. Just doing that was a pain in the rear. thought it was my ALT. but just turned out to be a pinched fog light hot wire, i hope. I found plenty runners on craigslist here in cali that were awsome for cheap
Old 04-24-2008, 09:53 PM
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ELECTRICAL = PAIN IN ASS. Shorts and grounds love to hide in the caves of your truck only accessible by the small gnomes that built the thing. I have a 3.0 90 runner and love it, but yea.. WALK AWAY. There are tons of them around without this issue.
Old 04-27-2008, 04:51 PM
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Originally Posted by GVOLCRunner
ELECTRICAL = PAIN IN ASS. Shorts and grounds love to hide in the caves of your truck only accessible by the small gnomes that built the thing.
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