Re: 1997 blazer trying to start by its self
Welcome to AF.
Any remote starts or add on anti theft stuff on it?
Ant electrical work been done on it?
Unless the starter solenoid is stuck on.
The only way for the starter to turn itself on if for voltage getting to the purple start wire to starter.
Check for 12 volt on it at wire to starter and then work back threw relay and start fuse and on threw neutral safety switch to ign switch.
May have a wire shorted someplace along the line.
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Remember proper testing gives us the answer to many problems.
MT
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