I just bought a 2006 Impala SS (22,000 miles) recently for a non-daily driver around here in the Texas hill country...5.3 L motor...and have discovered a break in the insulation of the ground wire coming off the negative battery cable, so I bought a new OEM cable (part # *****). It looks like I will have to remove the covering that contains both the + and - cables and runs from the battery area behind the radiator
to the driver's side of the car where the + cable is connected to the starter solenoid...but where does the - cable connect to a ground under that part of the car?
Does it ground to the frame or the body?
I have not taken the wiring insulation off of the two cables running from the battery so I could probably take notice of where the - cable will be grounded under the motor there someplace...but since I cannot see it now, I was just wondering where it connected to a ground source.
Also...I have been reading a LOT of comments on the internet and in car forums from owners of these cars about constant electrical problems with excessive corrosion build up on the battery cables and in a rapid time ... in fact, I have had the car not start already a couple of times because of that condition...I did replace the battery in the car e when i got it with a new Delco sealed battery rec for that car...and have made sure to clean the cable terminals frequently...but what a pain.
Is there anything else I might do to extend the time between corrosion cleaning of the battery cables...I do not think I have ever had a vehicle that required such constant maintenance of that part of the car.
Perhaps replacing the negative cable that is cracked and has some of the copper wire strands broken at the negative ground wire to the fender by the battery will help with that...and I might also need to carefully look at where the negative battery cable is grounded to the body or frame under the motor to see if it is badly corroded as well...if I can find that point of course.
Thanks for listening...hope you have some advice for me
Dr. John Denton Bowman III