electrical problem 1989 toyota pickup 22re
#1
electrical problem 1989 toyota pickup 22re
I have a question regarding an electrical issues with possibly a short somewhere... I just got my battery tested and a new alternator, and when i turn on my lights, or even my heater and everything in between my gauge voltmeter drops traumatically and almost kills my truck... when i accelerate my meter still doesnt move and my truck kinda tries to die...
Any help would be greatly appreciated thanks...
Any help would be greatly appreciated thanks...
#2
I have a question regarding an electrical issues with possibly a short somewhere... I just got my battery tested and a new alternator, and when i turn on my lights, or even my heater and everything in between my gauge voltmeter drops traumatically and almost kills my truck... when i accelerate my meter still doesnt move and my truck kinda tries to die...
Any help would be greatly appreciated thanks...
Any help would be greatly appreciated thanks...
#4
Registered User
sounds like some bad/corroded internal wires. rewire your ground off of the alt and check the + white wire from the alt. as well as the smaller wires that go into the back of the alt in the plug. or just do the gm 3 wire alt and life will be just fine.
#6
Registered User
iTrader: (1)
The alternator grounds through the bracket to the block.
It might be time to upgrade the battery terminals and cables along with the wire off the B terminal of the alternator. All these things can cause issues in starting or charging.
i have also seen the plug on the alternator get corroded and being where it is a real pain to get clean.
every Toyota that comes through my place I do this just because it cures so many starting and charging issues.
It might be time to upgrade the battery terminals and cables along with the wire off the B terminal of the alternator. All these things can cause issues in starting or charging.
i have also seen the plug on the alternator get corroded and being where it is a real pain to get clean.
every Toyota that comes through my place I do this just because it cures so many starting and charging issues.
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713William (06-04-2023)
#7
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last time the alternator went out on my dads 87 we had to get 4 alternators before we got a good one they each only lasted about a week and half there wernt any wirin probs on his just bad new parts
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#9
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One other thing I would suggest you check is the (+) wire that goes from your positive terminal into your fusebox. These have been known to corrode and/or absorb battery acid and affect everything electrical in your truck.
I had a similar problem to yours, the engine ran fine most of the time, but if I was driving at night and it was raining the windshield wipers (on top of the headlights) would draw enough current to stall the engine. I went through all the grounds, replaced the battery cables to no avail. Finally I traced the wire from the battery to the under-hood fusebox, and found the cable crimp had nearly corroded away.
I had a similar problem to yours, the engine ran fine most of the time, but if I was driving at night and it was raining the windshield wipers (on top of the headlights) would draw enough current to stall the engine. I went through all the grounds, replaced the battery cables to no avail. Finally I traced the wire from the battery to the under-hood fusebox, and found the cable crimp had nearly corroded away.
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713William (06-04-2023)
#10
Agree with checking wiring thoroughly for corrosion. Do not trust connections that look good outside. i.e., battery post and connector may look clean but contact surface/interface could be corroded
Many ground points have painted sheet metal, continuity to ground and relies on contact from threads to coated screws, to ring terminal. I would not trust that because threads and screws could get dirty/corroded. I sand down to bare metal and clean ring terminal (below). This way, ring terminal makes direct contact with sheet metal ground. Then I use conductive grease on all contact surfaces, to prevent corrosion.
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713William (06-04-2023)
#12
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I always have a double check if I have to buy an alternator. You could always rebuild the alternator yourself. Its cheaper and not really that hard. The last time I did mine NAPA had all the parts in stock. Just a thought.
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