- 1). Disconnect the negative battery connections with a wrench and clean the contacts with a wire brush to remove corrosion and battery acid. Reconnect the battery and attempt to start the Regal. If it does start, the issue was due to poor contact with the battery.
- 2). Jump-start the Regal by connecting the battery to a working car battery via a pair of jumper cables. If the Regal starts, replace the battery with a new one.
- 3). Shift the Regal into neutral, set the parking brake and crawl under the car. Locate the starter between the transmission and the transmission housing. The starter solenoid bolts onto the starter housing. Locate the two large metal posts on the back of the solenoid and bridge them with the blade of a screwdriver. This will short out the solenoid and force a direct connection between the starter and the battery. If the motor in the starter turns on and runs smoothly, move to the next step. If not, replace the starter.
- 4). Place the positive lead wire of a multimeter against the right contact on the starter solenoid. Place the negative lead against the casing of the starter. Have an assistant attempt to start the vehicle. If the meter does not read at least 12 volts, replace the solenoid.
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