Won't start how ? When you turn the key to the start position what happens ? Anything ? Does the starter engage an spin the engine ? This would be a crank no start condition which would have me check for spark at a plug wire or hook up a fuel gauge an check for fuel pressure , doing a compression test . Or nothing happens when you turn the key . Which would have me test the battery ,voltage drop test the starter circuit , looking at a wiring diagram to see what all is involved in the starting circuit , relay , park neutral safety switch , PCM/ECM - engine computer .
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SOURCE: I'm trying to repair the horn of a 88 chevy nova.
I'll check the fuse first. If okay, then I would check the connectors where wire connects to horn connector. Test horn on battery to make sure the horn works. If all is okay, then there is broken wire in that circuit.
SOURCE: 85 Chevy nova, just replaced the radiator...
Won't crank or will crank but won't start? Two completely different issues. Check any wiring anywhere even close to where you were working. Chances are there is either a loose connection at the starter or a disconnected/loose plug-in connection somewhere close to the area of recent work. If it won't crank at all then start at the battery and check the major connections for tightness and cleanliness. If the car worked properly yesterday and not today after the work then you should not have to look too far to find the bad connection.
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