Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi there, I am Cam.
I am confident we can resolve your problem together. Please understand that I don't know your skill level. I can't see, smell, hear, or touch the vehicle either, so it may take a few replies to get to satisfactory results. Please be patient!
I also try to give all of the information you may need, expecting a “positive rating” in return. I will also continue assisting you after you have rated me, if necessary. If there is any reason I cannot get a positive rating, please let me know why “in advance”, so I can go another direction for you. I am sorry you’re having this problem; I’ll help you through it.With your plow and truck, did you add a second battery?
OK, when it was installed, did you connect both batteries directly together or did you run the ground of the second directly to ground?
Ok, my concern is the current sensor if yours has it. Does yours have a current sensor on the original battery ground cable?
It’s a small round device that goes around the negative cable near the battery if present.
ok, if it does not, lets do a reset to change the computers reading on the state of charge.Take the battery cables off the battery, hold the ends together for 10 seconds then attach them to the battery and see what happens. This will reset the whole vehicle.If you have 2 batteries, then remove both and touch only one set.
OK, so it would be near the battery. So its not there. Lets reset it and double check all grounds and connections. Remove and check condition, use star washers. I am thinking its just a bad connection.
Take the battery cables off the battery, hold the ends together for 10 seconds then attach them to the battery and see what happens. This will reset the whole vehicle.If you have 2 batteries, then remove both and touch only one set.
Yes call disconnected from the batteries, both batteries, this resets the computers
Ok so that tells me then your issue is simply that your charging system is not able to keep up to your plow needs. I would look to add a second alternator to help with the load.
You would need to run a wire from the PCM to the port for the second alternator and program it to run a second alternator. It would need 1 wire not 2 control wires.