How to Replace Battery Cables in a Pontiac Grand Prixby Editorial Team
When the battery cables on your Pontiac Grand Prix start going bad, you'll have trouble starting the car. After ensuring that your battery is good, check the cables for wear and corrosion. Find the 12-volt, side-post battery on the driver's side, just behind the headlamp. Wear gloves when working with the battery to avoid getting acid on your hands and replace the cables if you see wear.
Loosen the bolt on the negative battery cable with the minus sign first, using a box wrench or cable clamp pliers. Carefully twist the cable end off the post, tapping it gently with a small hammer if it sticks. Repeat the process on the positive cable.
Follow the negative cable to where it's connected to the front frame, next to the headlight assembly. Remove the end of the cable with the wrench. Track the positive cable to its connection on the starter solenoid on the driver front side of the engine and remove it with the wrench.
Clean the battery posts with a small wire brush or cable cleaner and wipe clean with a dry cloth.
Attach the new positive cable first by reversing the process in Step 2. Put the negative cable on last and start the car to ensure the connections are secure on your Pontiac Grand Prix.
- Apply the emergency brake, remove the keys from the ignition and turn off all electrical components in your car before replacing your battery cables.
Things You'll Need
- Box wrench or cable pliers
- Wire brush or cable cleaner
- Dry rag
- Battery cables
- Never smoke while replacing your battery cables, as there may be fuel fumes in the engine compartment that could ignite.
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