Car Batteries
Mercury Cougar

What causes a 1986 Mercury Cougar to start when you connect the negative battery terminal with the key not on and how do you connect the starter silinoid?

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Wiki User
2007-05-07 16:45:58

check the ignition switch...the electrical switch that the key

controls..:) There are 2 large lugs or terminals on the solenoid,

you may have your positive cable connected to the one that goes

directly to the starter and that is why is turns over whenever you

connect the other cable. Look at the solenoid and connect your pos

cable to the terminal that is farthest away from the starter or

that does not have a cable leading into the starter body. The

smaller wire should go between the two larger ones


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