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16 hp Briggs Vanguard won't shut off using key switch.


rbnpls's Avatar
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KY

10-02-14, 10:04 AM   #1  
16 hp Briggs Vanguard won't shut off using key switch.

Engine would not start using electric starter. Engine would shut off using key switch after starting with pull. Replaced solenoid. Engine started with electric starter, wouldn't shut off. Replaced key switch with OEM, still wouldn't shut off. Replaced solenoid with OEM, still wouldn't shut off. Anybody?

 
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10-02-14, 01:58 PM   #2  
The key switch/solenoid/starter/coil are all part of the electric start system.

The key/coil (ignition module)/and ground are part of the kill circuit. The solenoid isn't part of that. The key switch is in the middle of the kill circuit. One side goes to the coil (ignition module) and the other side goes to ground. The turning of the key to "run" breaks the circuit and "off" completes the circuit from the coil to ground to kill the engine.

Since you have replaced the switch you have a break in either the wire going to the coil or the other side going to a ground.

You just have to trace the wires and check them. It may just need cleaning somewhere.

 
rbnpls's Avatar
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KY

10-02-14, 04:47 PM   #3  
I didn't think the solenoid could be involved. Just confused me when this occurred right after I replaced it. It's on a generator, maybe something vibrated loose. I'll trace the wires. Thanks

 
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10-02-14, 05:20 PM   #4  
The solenoid bolts commonly are also used as a ground. Sometimes when the solenoid gets replaced, the little ground wire that was attached to one of the mounting bolts gets left off. That could very easily be your problem and would explain why it started doing this when you replaced the solenoid.


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