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What could be the wiring problem?

Tiny
KIMZIMMERMAN
  • MEMBER
  • 1983 MERCURY COUGAR
  • 13,900 MILES
My 1983 Mercury Cougar won't start unless you take a test light, hook it up to the battery and then take the test part and touch the coil. It will then start. You can start it several times after that and then it will go back to the same thing. Then you have to use the test light again to start it. In what part of the wiring could be bad causing this?
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Thursday, October 6th, 2011 AT 5:54 PM

2 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
KEY "ON"---HOOK TEST LIGHT TO GROUND----TEST POS SIDE OF COIL WITH TEST LIGHT

RESULTS?

THE MEDIC
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Thursday, October 6th, 2011 AT 6:41 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Coil should have 12v when you turn key on. How old is ignition switch?
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Thursday, October 6th, 2011 AT 6:48 PM

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