In Carrizo Springs this weekend and my buddy has a 1975 Chevy Blazer. The ignition has been modified slightly. Here's the problem. There is no key, but you turn the ignition on and it has a push button starter that you push and give it some gas and it usually starts right up. This weekend it would not do anything. I cleaned the battery terminals and it still would not start. Next, I found a in-line 30 amp fuse that came from the added starter button and the fuse was blown. I always bring lots of tools to the lease and this time I had thrown in my electrical box expecting to troubleshoot some feeders. Well, I put in a new fuse and it started right up. After we shut it down, it would not start up and sure enough it blew another fuse. This happenned several times. My question is what would cause it to keep blowing fuses? Bad ground, maybe
I would follow the wires from the push button - back. There has to be bare spot somewhere (and your have a hot going to ground) if it keeps blowing the fuse. Good luck.
Mr Mudbug said:
1) Maybe needs a bigger fuse, lots of cranking amps needed to turn over an engine.
2) Starter cable may have short in it, that will start it once while blowin the fuse on a well tuned engine.
You don't want to put a bigger fuse b/c the amperage rating for the fuse, should not be rated more than what the wire can handle, other wise your wire will burn up b4 the fuse blows.
those push button switches have been known to not last very long. Check the swithch very closely for corrosion. Also remove the battery cables and take a knife and slit the plaastic sleeve about 4-5 inches up, peel it back and check the wire for corrosion. most people only look at the cable ends, but the corrosion can go much further up the wire, Feel free to pm me as I am an ex master tech-Shaun
I would guess the fuse is in the power to the push button switch. Certainly not to the starter. The switch just activates the solenoid and not the starter. If its in line with the starter it will burn up and also blow the fuse. Surley someone did not wire the pushbutton straight to the starter huh ?
Charlie, yes it is wired back to the wiring harness, not directly to the starter. The fuse is on the power wire to the switch
CHARLIE said:
I would guess the fuse is in the power to the push button switch. Certainly not to the starter. The switch just activates the solenoid and not the starter. If its in line with the starter it will burn up and also blow the fuse. Surley someone did not wire the pushbutton straight to the starter huh ?
Well could be several things then. Maybe switch, maybe solenoid, maybe needs slo-blow fuse, could be sort somewhere (has to be). Something not wired rite. just too many possibilities.
Charlie
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