Battery Cable problems of the 2008 Chevrolet Silverado 1500

My vehicle was in motion one day and I was driving on the interstate and all power in the truck was gone the radio reset the gauges started to go up and down and the airbag light was flashing and saying service airbag. I figured it was a electrical problem so I got a new battery and it still did it so I I put a new ground wire and it still continued to do it and got all new battery cables and still nothing and when it all resets and I turn it off I have to jiggle the positive wire for it to start.

Experiencing sporadic issues with my trucks electrical system. What will happen is that as I'm driving down the road (doesn't matter what speed), I will hear a loud "pop" (sounds exactly like a desktop computer losing power) and then my dashboard/monitor screen will go dark and after a split second everything come back on. The dashboard will flash on and off for a few more seconds. About every third time this happens, if I park the car and try to restart it it won't turn over. In these instances, I can hear current cycling through my power door lock switch along with an electric clicking noise that won't stop. If I let the truck sit for 15 minutes or so, I can get the truck to restart. I have had to have it towed a couple of times because I could never get it to turn over. This problem first occurred when the truck was 3-4 years old and still under warranty. They couldn't find the issue and didn't replace any parts. Now all the repairs are coming out of my pocket. I've replaced the battery a couple times thinking I had a faulty battery. Later I replaced the battery cable thinking this was the cause and most recently replaced the fuse box. In all instances, the problem would go away for anywhere from 3-6 months and then reappear. As I said it is very intermittent with no consistency to it whatsoever. My truck has never died while driving when this has occurred, although I'm scared to death it will do so and I'll lose all power. My brother-in-law is a master mechanic for a local dealership and it has him completely stumped. He's read through all the TSB's, checked on-line blog's, etc. As well as doing his own technical troubleshooting, but cannot pin down the exact issue. At this point we've resorted to replacing the most likely parts and hoping for the best. As I said I replaced the fuse box about 4 months ago and the problem resurfaced today.

While driving on the freeway, the entire electrical system in the vehicle shut down momentarily and came back. The entire dashboard went dark, headlights turned off, door locks cycled up and down, and radio turned off and back on. Brought vehicle to dealership and they diagnosed the problem as battery cables needing to be replaced as there was high resistance. Searching online for similar statements shows that many other people are complaining of this same problem. This is a major safety issue as it could cause loss of control of the vehicle. Working with gm customer service on this, they will not pay for the repairs which totaled $478. 95. This is not a part that should fail after less than 5 years. Please see these links for others complaining of same issue. . Read more...

While driving with cruise control on at highway speeds, the traction stability light came on along with brake light. The door locks activated and all dash backlighting went out. After shutting off engine, all electrical power shut off to include the clock on the radio. I checked battery connections and after wiggling the positive battery cable, the power came on. The clock was set to 12:00, and the a/c was reset to 74. This was the first incident. After several incidents, my truck actually stalled in an intersection and I had to stop in the road to adjust the battery cable. I have had approximately 20 incidents of similar nature, each time with increasing symptoms. At one point, the warning light for the a/c overheating came on. Also, the battery and cables become extremely hot, and stay hot after engine shutdown for several hours until the cable is readjusted. I have read several forums looking for a solution, and have concluded the most likely source is a failing positive battery cable. In the forums, it seems that the cable was redesigned in 2007, and has affected all vehicles through 2013. This poses a threat to overheating battery connections which could lead to a fire, and threat of a vehicle collision.