"generator" light stays on while engine is running....

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fussfeld

Full Access Member
Joined
Mar 25, 2013
Posts
340
Reaction score
54
Location
east coast
First Name
j
Truck Year
83
Truck Model
c-10
Engine Size
4.3 v-6 262CID
1) Ok i got it tested at Pepboys. i watched her hook it all up, so really i don't think there's anyway to screw it up.

i don't really understand the results other than that the alternator is toast:

Lamp/diode trio FAILED
Regulator test FAILED
Rectifier test PASSED

................ Low Actual High
Battery volts 14.20 11.47 15.60

Ripple volts 0.00 0.00 2.00

Lamp on volts 0.00 5.64 8.00

Lamp off volts 11.00 0.00 0.00


2) The thing worked just fine for two weeks. i would think that AC Delco was high quality vs. the offbrand autoparts store remans. Live and learn, i guess..............

3) What determines the amp rating of an alternator? Because i'm thinking of using the rear half of an alternator that is laying in my garage----which i know is good, and combining it with the front half of this failed alternator----because i can't change the pulleys right now (don't have an air impact).
 

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