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1986 will not start with new battery

1986 grand marquis wont start with new battery turns over once than stops,one crank cycle and than goes dead when i take jumper cables off it sounds like it does not have battery life and makes a clicking sound that comes from solenoid

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  • david mcclellan
    david mcclellan May 11, 2010

    It sound like it's a bad solenoid. However the clicking sound could be caused from a drained battery, loose or corroded battery terminals or loose connections on the solenoid. It's really difficult to say. If your sure about the condition of the battery you should first inspect and clean the battery posts, cables and terminals. Second inspect all the solenoid posts. Make sure they are clean and everything is tight. After this try starting it again. If the problem persists you are going to have to check the solenoid. This can be done by jumping it. You do this by jumping the large terminal that is connected to the positive battery terminal to the small terminal that the starter is connected to. You can use a heavy gauge wire or even the handles on a pair of pliers. This will turn the engine over but will not start it unless the ignition switch is in the on position. Before you attempt this: PLEASE MAKE SURE THE CAR IS IN NEUTRAL IF IT'S A MANUAL TRANSMISSION. AND APPLY THE PARKING BRAKE! If the engine turns over it's the solenoid. If not then you may need to check all the wiring involved in the starting circuit. Hope this helps.

  • Eric Amundson May 11, 2010

    Many things are possible, like engine damage, hydraulic lock (water/antifreeze in cylinder), it could even be battery cable connections or the cables themselves. Does the engine turn over by hand with a ratchet and socket? (Make sure the key is off).

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  • Cars & Trucks Master
  • 6,982 Answers

Have the voltage in your new battery tested. It must have 12 or better and stand up to a 200amp load for 15 seconds, not dropping below 9.5v while load is present, returning to 12 volts after load is removed. If battery tests good, put it back in the car and put a volt meter on it. If when you attempt to start it, the voltage drops to 9.5 or below, change the starter.(but first make sure you can turn the engine by hand). If it does not drop at all check the solenoid and trigger wire (12v at trigger when turned to start, 12v at lead to starter when turned to start.)

Posted on Sep 08, 2009

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  • Cars & Trucks Master
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Sounds like a defective starter drive.

Posted on Sep 08, 2009

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