How to Disconnect an Alero Battery
The Oldsmobile Alero (1999 to 2004) was available with one of two engine choices: a 3.4L V6 or a 2.2L I4. Regardless of your Alero's engine, the procedure for disconnecting the battery is the same; it's even in the same location. Disconnecting a car battery is relatively simple, but due to the combustible nature of car batteries, you must follow specific guidelines and safety recommendations.
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Instructions
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1
Open the hood and locate your battery. The Alero's battery is mounted up front, on the driver's side of the engine bay.
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2
Remove the battery's protective cover. Use your hands to unlatch the clips on the side, and pull the cover away.
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3
Inspect the battery for discharge or damage. If the battery is leaking, do not attempt to disconnect or remove it; instead, contact a service professional immediately.
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4
Remove the negative battery cable from the terminal. The negative battery cable is usually black and labeled with a "-" sign. Use the pliers to loosen the nut holding the cable to the post, then pull the cable free.
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5
Remove the positive battery cable. The positive battery cable is usually red and labeled with a "+" sign. Remove the positive battery cable in the same manner as the negative battery cable.
If you are only disconnecting your battery to make a repair, you do not need to disconnect the positive battery cable. -
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Remove the battery if you plan on replacing it. Use a socket wrench to remove the battery's mounting bracket, then lift the battery from the vehicle using the side handle.
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Tips & Warnings
Wear goggles (or other eye protection) and gloves when working near a battery.
When reconnecting the battery, attach the positive cable first, followed by the negative cable. Not following the correct procedure could cause bodily injury or damage to your vehicle.
