best way to test alternator?
#1
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best way to test alternator?
I have a strange issue with my alternator. when i start up, the volt gauge takes about 4 seconds to come up to the normal 14 volts. the starter turns much slower than usual but it still starts. the truck runs and drives ok except for those issues. Occasionally it will throw a code for the alternator field circuit not switching properly. I am wondering if the alternator is borderline and beginning to fail or possibly one or both of the batteries are failing. it cant be the grid heaters because it's 109 degrees here.
#3
you pull the alternator and take it to an auto parts store and have it tested..
on the truck.. use a volt meter to measure the voltage the dash gauge is computer controlled..like the rest of the gauges.
or do what did..I tried to clean the connectors and broke the output stud..then broke on the cover studs...time for a new alternators..it fixed the tranny hunting problem. so I was happy in the end.
-dkenny
on the truck.. use a volt meter to measure the voltage the dash gauge is computer controlled..like the rest of the gauges.
or do what did..I tried to clean the connectors and broke the output stud..then broke on the cover studs...time for a new alternators..it fixed the tranny hunting problem. so I was happy in the end.
-dkenny
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Test batteries individually by disconnecting the pass side bat. Replace both if one fails. Use the good one for lawn mower or whatever. The old one will pull the new one down. Clean all heavy electical connections.
#6
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Go to a shop [ because the "best" tools , a charging / starting with a load tester will cost too much ] and with out you could miss many things .
The 1st thing that occurred to me by your description , was , that the brushes are worn in the alternator .
The 1st thing that occurred to me by your description , was , that the brushes are worn in the alternator .
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