Anyone know of any bulbs in the warning light system that would put the alternator in 'no-charge' ?? And where's the fuse that would do the same thing? I'm assuming in the main distribution box.

 

hello billy-225, if you warning light in your gauges say 'no-charge' um there was a joke there lmao...
it could be a failling alternator, have the alt tested for free at a parts store. i really dont understand the fist part of your quiestion, but for the second part theres no fuse that i know of for the sevice light .

 

oh yeah no no...

what I mean to ask is... I've got the appearance of an alternator failing but it might be something less. I went to get an alternator. looked the replacement up online and it came with this intstallation alert... INSTALLATION ALERT! A blown fuse or bulb in the warning lamp circuit may cause a "no charge" condition.

I'm just looking for this fuse or this 'possible' bulb. There may bea bulb in series with a relay somewhere, or there may be a fused relay, or just a big fuse that would keep the alt from charging the battery.

 

i just read up on the charging system in the haynes manual and it talks about two types of alts, si/cs.
the best two suggestions i can make are, buy a haynes manual from a local parts store or call a local chevy/gmc dealer that has sevice techs. thay will let you know about the fuse/light issue.

 

i used to have a 1984 chev s10 and my brake switch at the brake pedal short out and my alternator gauge was showing no charge changed the switch and came back ok

 

You mentioned that the brake pedal switch caused a failure of your voltage guage. The problem went away when you changed the switch, what happened when the switch was merly unplugged?