I'm currently about to start rewiring my blazer. I'm switching my fuse blocks over to circuit breakers. My only question is how do I get power to all the breakers. Do you build a feed that feeds to all of them or connect them together? Any help would be great

 

What year blazer? Is it OBD? If so I would use a wiring diagram. Some components are power side switched and controlled when they get power by ECM, BCM, etc and are not meant to have constant power. Or maybe I am misunderstanding your question.

 

I guess the question is how do I get power to a row of circuit breakers instead of fuses. I want to swap them and just unsure if I'm missing something. I've done some searching about it but left with questions. I will be referencing a wiring diagram foe it but ultimately everything will be switched also

 

So a some questions...(again since I don't know what year Blazer we are referencing) why the re-wire? Were they chopped up, corrosion in the wires, fried or something? If the integrity of the wires are okay, why not just use the wires as they are and switch the fuse to breaker in each location? That way you don't inadvertently cross wire. As stated, the issue you have is some components are switched on the power side by another component. The power in many of your circuits do not come directly from the battery. Power goes thru a "gate-keeper" (switch). If you tried to power all your breakers on a single wire (just for example) you would have components switched on when they shouldn't be.

Theoretically, for ground switched components you could splice all the power wires together that feed the breakers, but then again you would have an issue with some of the components because for example the VCM may be internally "watching" and measuring the feed for a specific circuit to know what to do next.

Now for my last question...what is gained by switching to circuit breakers besides saving a nickel on the rare occasion when a fuse would blow? Admittedly I am ignorant of any benefit, though there may very well be an improvement reason I am unaware of and would appreciate being enlightened.

The fuses are there as an overload safety device to keep from component(s) or circuit(s) being destroyed. If you have fuses blowing, that tells you to fix the problem so the fuses don't blow. If you want circuit breakers because you know of a circuit that would constantly trip, then I would say use the money and time to address the root problem. Bottom line, your fuses should never blow on correctly operating circuits.

The only reason I would use circuit breakers is to make diagnostic tools to help me root out an overload issue without having to go thru a box of fuses.

That's just my opinion, I could be wrong.