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Senior Member
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Join Date: Mar 2012
Location: Southern California
Posts: 1,836
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Senior Member
Join Date: Mar 2012
Location: Southern California
Posts: 1,836
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All of the above, plus:
1) When we say "CLEAN" contacts we mean bare metal contacting bare metal. Grey metal is not CLEAN electrical contact.
2) Alt output range should be from 13.5 - 15.1V, depending on temp. May fluctuate out of that range momentarily, depending on load, battery charge condition.
3) If you have easy access to headlight fuses, measure voltage there with headlights on. Is should almost be same as voltage at the battery post. If not, you have poor connection somewhere between that and the battery post.
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86 4Runner, 22R-Eliable, 5-Speed Manual, dlx. WHAT'S YOURS?
If you want us to help from afar please let us see, hear, feel what you're dealing with.
A picture paints a thousand words.
Toyota components are bullet-proof. Issues often arise from poor wiring, assembly and/or maintenance. Suspect those first.
Next only to our senses, the multi-meter is the most important electrical diagnostic tool. Spend $6 at Harbor Freight or $$$ blindly replacing parts.
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