Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello I will help,
Do you have a voltmeter?
Good, check the high speed fuse in the right end fuse block in the dash. You want the 25 amp HVAC BLO in the panel. Let me know if you need a diagram and what the results are. If the fuse is good check the large orange wire at the resistor connector for 12 volts.
Good, first verify you have 12 volts at both testpoints on the back of the fuse then move to the resistor connector and check the orange wire there.
Check the smaller orange wire as well.
Let me know what you find
You are positive you have 12 volts at both testpoints on the 25 amp fuse?
Then there is no connector between those two points and new wire needs to be installed or check the length of the wire looking for broken or burned spots. As you can see the distance is quite short.
How can I help
Then that is the problem, you have a poor connection between the fuse and the resistor. You can repair that but you have to find the problem first. Either the connector for the fuse or on the back of the fuse block would be my guess.
Let me know how I can help
You could test the orange wire coming out of the fuse block and see if you have 12 volts there when you have 12 volts on the fuse. If you need to replace the block car-part.com can help with used parts.
If you came off the battery with an inline right there to the orange at the resistor it would work but I would be looking at the back of the fuse block first. Less work I think and longer lasting fix.