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1985 mercury marquis won't start


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ryonkeys
New User

Nov 14, 2011, 9:25 AM

Post #1 of 4 (1879 views)
1985 mercury marquis won't start Sign In

my car won't start... when i turn it on the lights radio and air work, but when i try and get it to start everything turns off. when i release the key back to the on position everything turns back on. i have already tried to jump start it and i have no idea what the problem is...


unapez
New User

Nov 14, 2011, 9:36 AM

Post #2 of 4 (1873 views)
Re: 1985 mercury marquis won't start Sign In

Sounds like a bad battery cable or starter. If the battery cable is corroded on the terminals, or on the starter end or in between (even inside the cable where you cant see) this will pull all the power from the other accessories while you turn the key. If the starter has a dead short this can do it also.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 14, 2011, 9:38 AM

Post #3 of 4 (1869 views)
Re: 1985 mercury marquis won't start Sign In

Start with having the battery tested and once you have full power, check all the cable connections.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 14, 2011, 10:27 AM

Post #4 of 4 (1843 views)
Re: 1985 mercury marquis won't start Sign In

Those if still original cables are real lead. the "battery bolt" may have reached it's limit to clean and tighten - common. Can fix that with new bolt + nut, clean with battery brush - all above suggestions possible too,

T







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