QBuff02
I like Big Blocks and I cannot lie
- Joined
- Feb 28, 2017
- Posts
- 868
- Reaction score
- 1,605
- Location
- Central IL
- First Name
- Quincy
- Truck Year
- 1982
- Truck Model
- K30
- Engine Size
- 454
OK guys,
so my '82 K30 is having electrical gremlins.. I know that the wiring on it is a 35 year old rats nest of bad decisions at this point and I plan on rewiring the whole truck this winter, but the problem I have now is it acts like it doesn't have enough voltage to crank over all the time. It has a brand new battery, brand new starter, all new positive and negative cables, all new fusible links and connectors to starter and alternator, so I'd say the "starting" electrical is 90%ish.. the battery shows good voltage static, but if it sits for a few days with the battery hooked up, it acts as if there isn't enough voltage to engage the starter all the way. (partial engagement, engine "grinds" and tries to partially turn but doesn't FULLY turn over) and if I retry starting it a few times, sometimes it will go ahead and crank and fire right up, other times, if I put a battery charger to the battery, even on 2 amp, literally touch them to the terminals and say to my girlfriend "try it".. it will fire right up within a few seconds of putting the charger on it. And I just noticed this weekend since most of the gauges don't work (brought my volt meter home from work and also put one of those cheap 3 gauge packs in it) that once it's running, it's actually overcharging. I was leaning towards an ignition switch being the culprit, but what do you guys think it could be.?! And other than the obvious overcharging, which I am going to get a new alternator this weekend coming up. Where should I be looking for good voltage, not good voltage and potential issues in the harnesses? Key switch? It makes me want to gut and rewire the entire damn truck now! instead of waiting!
so my '82 K30 is having electrical gremlins.. I know that the wiring on it is a 35 year old rats nest of bad decisions at this point and I plan on rewiring the whole truck this winter, but the problem I have now is it acts like it doesn't have enough voltage to crank over all the time. It has a brand new battery, brand new starter, all new positive and negative cables, all new fusible links and connectors to starter and alternator, so I'd say the "starting" electrical is 90%ish.. the battery shows good voltage static, but if it sits for a few days with the battery hooked up, it acts as if there isn't enough voltage to engage the starter all the way. (partial engagement, engine "grinds" and tries to partially turn but doesn't FULLY turn over) and if I retry starting it a few times, sometimes it will go ahead and crank and fire right up, other times, if I put a battery charger to the battery, even on 2 amp, literally touch them to the terminals and say to my girlfriend "try it".. it will fire right up within a few seconds of putting the charger on it. And I just noticed this weekend since most of the gauges don't work (brought my volt meter home from work and also put one of those cheap 3 gauge packs in it) that once it's running, it's actually overcharging. I was leaning towards an ignition switch being the culprit, but what do you guys think it could be.?! And other than the obvious overcharging, which I am going to get a new alternator this weekend coming up. Where should I be looking for good voltage, not good voltage and potential issues in the harnesses? Key switch? It makes me want to gut and rewire the entire damn truck now! instead of waiting!