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How to Replace a Battery on a 1998 Grand Prix GTP

The 1998 Pontiac Grand Prix GTP was a sub-version of the standard Grand Prix. It featured a 3.8-liter engine with a Super Charger to upgrade the vehicle to a muscle car. Replacing the battery on one version of the 1998 Grand Prix is the same as on any other in the series. Tightly fit behind the passenger-side headlight, the battery is fairly heavy and requires a little finagling to remove it from its tray.

Instructions

1

Open the hood to the 1998 Pontiac Grand Prix GTP.

2

Put on the safety goggles and mechanics gloves.

3

Remove the four upper engine cross member retaining bolts that run from the passenger-side fender rail to the grille using a ratchet and a socket.

4

Place the extension on the ratchet and use a suitable socket to reach and remove the battery hold-down wedge bolt. Reach down between the battery and engine cradle to remove both the retaining bolt and hold-down wedge.

5

Remove the negative battery terminal bolt with an 8 mm box-end wrench by turning it counterclockwise (to the right since the terminal bolt is on the inside of the battery casing). All car batteries should be ungrounded by removing the negative battery terminal first to prevent sparks (which can result in igniting hydrogen gases the battery may be emitting, causing the battery to explode).

6

Remove the red cover (if applicable) from the positive battery side post terminal and then remove the terminal bolt with the box-end wrench (again turning it to the right).

7

Remove the battery from the battery tray. Some batteries may offer an upper handle to manage the battery better. If not, tip the battery slightly towards the back of the engine and grasp it from each side. Batteries that are not equipped with handles tend to offer small shelves in either side of the battery for grasping.

8

Install the new battery by reversing the procedure. Be sure to connect the red positive terminal bolt first and the black terminal bolt last to prevent sparking.

9

Replace and tighten the battery hold-down wedge and retaining bolt and then replace the cross-member and retaining bolts by reversing the removal procedures.