Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello and welcome! Did you still need help? What size engine do you have? Are you saying that it does not crank or are you saying that it cranks over but does not start when this happens? Let me know!
Thank you for that information. This would either indicate a bad new battery or a bad connection at or after the battery. Are you sure the connections are clean and tight?
Ok, what is the battery voltage at and the voltage on the fuses at when the key is turned to the CRANK position?
Ok, the battery and the rest of the vehicle should remain above 10.0 volts with the key in the CRANK position. It sounds to me like you have a bad connection at or after the battery. Just because the cables are clean and tight does not mean they are making good contact. Also, you could have a bad connection going into the fuse block.
Fuses dont make noise unless they blow or pop. Chances are it is a relay making the noise.
Right, this is either low voltage or a bad PCM. It sounds like you have a low voltage issue. Most likley due to a bad connection. HAve you checked all of the grounds?
You will need an assistant to crank the engine over while you check for voltage under the hood
While you check for voltage on the fuses under the hood.