Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
When this happened, there was absolutely no power anywhere?
Ok. If there was no power anywhere in the truck, then it's most likely a loose cable connection. Have all the connections been thoroughly checked?
or even just a bad connection. I have seen very tight connections that have been intact for years suddenly stop conducting power and needed to be removed and cleaned.
Usually the problem is the ground at the vehicle
I would first remove the ground, clean it up with a wire brush and re install it.
I have kept that in mind, but a bad connection can cause an intermittent problem. If you have no power anywhere in the truck when this happens, then it's almost definitely a bad connection. If it were a bad ignition switch, or harness damage, etc. then there would be power somewhere.
The ground cable at the vehicle is where I would start.
The ground cable at the vehicle is where I would start. it's free, easy and a common issue. We do see it often.
There are no modules, including the PCM that could fail resulting in a loss of power to the entire truck
Do you live in an area that has shown the truck 245k of salty roads and snow by chance?
Ok. Clean the ground cable real good, and the surface of the vehicle to make sure we are getting a very good ground. I honestly am very suspicious of that. I spent almost my entire career in the midwest, and saw this often.
Great! Please let me know what you come up with. I usually respond pretty quickly as it goes to my phone
You can message me right from here. I think in your email there is a link to get back to it if you can't log in. Not positive
Hi Jim. What did you find out?
Wow, i'm surprised a blown fuse would cause an intermittent loss of power. It must have been a bad connection in the fuse box that was corrected by pulling and installing the fuse. At any rate, I'm glad it's figured out. Thanks for responding!
OH, I misread. Figured it had to be a bad connection due to corrosion. Such symptoms usually are. Glad it's fixed.
Thanks for the reply and merry christmas!