Why does my GMC 2500 have two batteries?
The second battery powers the 12V Circuit to the trailer connector. If you have a trailer with 12V lighting the second battery will power those lights without discharging the truck starting battery. Both batteries charge normally from the truck system.
How to hook up dual batteries in Silverado Sierra?
The pinout for this connector is Pin A=orange, Pin B=Ground, Pin C=Red/Wh, Pin D=plug Technically at this point you could order the factory AC Delco Battery Cables for the TP2 option and plug and play. But those cable aren’t cheap, I’m going bigger, and why buy when you can make your own cheaper. Step 5.
Where does the battery go in a Chevy Silverado?
You need to run power from the fuse holder (bus bar side) to the top post of the isolator and then run power from the bottom post of the isolator to the second battery. The battery is then grounded to the driver side head via a M10x1.5 bolt.
Where does the battery isolator go on a Chevy truck?
Battery Isolator (GM P/N 12135194). GM calls this a “secondary auxiliary relay”. It goes on the firewall, up and left from the brake booster. How you mount it is up to you. If your truck is like mine, then it doesn’t have the needed studs from the factory. So I used M6 threaded inserts and flange bolts from ACE hardware.
What do I need to know about my GMC battery?
WHAT IF I’M NOT SURE IT’S MY BATTERY? Your GMC Certified Service experts can give you a no-charge battery test to determine if your battery needs replacing or if there is an issue with another charging component.
What kind of battery does a Chevy C / K 1500 have?
Your Chevy C/K 1500 remains one of America’s favorite light-duty pick-ups, but it’s important to make sure you’re always running on full electrical power. AutoZone has a great line-up of Chevrolet C/K 1500 car batteries to ensure that you’re never stranded, due to a worn-out battery.
What kind of warranty does Chevy C / K 1500 have?
When you order your Chevy C/K 1500 battery from our Duralast collection, you enjoy best-in-class vent caps, a patented Solidium™ weld system and an impressive 2-Year or 3-Year Nationwide Free Replacement Warranty.
When do you need a Chevrolet battery replacement?
The Chevrolet Certified Service experts are trained to inspect your vehicle’s battery and perform replacement services if needed. Your vehicle’s battery provides the engine with the necessary energy to start and also powers accessories when the engine is not running. Don’t wait until your battery dies.
Why is the battery light on on my GMC Sierra?
If your Sierra’s battery light came on while you were driving, but before you parked, it could be the alternator. If you didn’t see a battery light, and now the vehicle is dead when you go to start it, the first thing that you need to look at is the battery.