1982 toyota pickup i am not getting a charge. my voltage is low. i have changed altenator with one from junk yard, nothing, changed my voltage regulator, changed battery, changed my charge lamp relay nothing. i want to go 4x4, please help wanna get out
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check alternator out put should have 13.5 - 14.5 volts at battery with engine running.if not alernator voltage regulator faulty.any time you see brake light and charging light flashing alternator not putting out enough power to work the antilock brake system.
The first question for you is, What is the charging output for the altenator at idle?? If less than 12.3 volts, replace altenator. Typically, the altenator gets tested at 2500-3000 rpm on a bench tester. Your problem may be in the low rpm output range.
Sounds like the transmission is worn out. It could be rebuilt or call around to the junk yards and see if any has a good clean used trans.If you get a junk yard one change the fluid before you drive the truck.
new altenator or junkyard one.if new return it, if junkyard just ignore light as its odds on they will not change it .the red light is caused by the difference in the voltage between input and output voltages .Quick test --start engine and run at 1500rpm disconnect battery and turn everything electrical on and if engine stops then change altenator if it stays running then altenator is OK
The brake light combined with the battery light tells me that your alternator is not sufficiently charging the battery. These 2 lights illuminate in tandem when the voltage regulator is not seeing over 12.5 volts. You are going to probably have to replace the alternator, or get it checked & overhauled at an alternator shop.