79 C20 Chev Suburban

mgcwrnch

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Location
chico, ca
First Name
alan
Truck Year
1979
Truck Model
2500
Engine Size
500 cadilliac
Charging system not working. Not bad alternator.
What could be problem ?? Fuseable link ?. Where ?? Any wiring diagram available??
Thx 4 help
 

MrMarty51

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Eastern Montana
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Martin
Truck Year
1978
Truck Model
K20
Engine Size
400
Fusable links to the starter mainly. Might be one off the alternator battery terminal.
You apparently have checked off the battery terminal of the alternator with the engine shut down, then again with the engine running to verify that the alternator is charging, using a multimeter ?
New parts does not necessarily mean good parts.
Welcome to the forum.
Your handle has MGC in it, do You own a MG C ?
 

handyman1425

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Midland SD
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Wallace
Truck Year
1977
Truck Model
K10
Engine Size
350
sometimes the battery posts corrode between the clamp and the post. I call this black post. it will start with a jump or a battery charger but not on it's own. And will charge higher on the gauge because it's struggling fo make the connection. I hope this helps as iv'e seen so often people get charged for a new battery when there is cleary nothing wrong with there old one.
 

mgcwrnch

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Location
chico, ca
First Name
alan
Truck Year
1979
Truck Model
2500
Engine Size
500 cadilliac
No MG C. Short for Magic. No vowels.

Thx for info. Alt Chkd good at NAPA.
Will follow links.
 

Mr Clean

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North East Texas
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Shawn
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1982
Truck Model
K10 Extra Cab w/ Proper SWB, & 82 2WD Blazer
Engine Size
454 BBC, & 383 Stroker
:welcome:
 

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