My battary seened dead, I charged it car started 3x then seemed dead I charged it again wont start

KBULLLOCK

MEMBER
1997 MERCURY SABLE
100,000 MILES

I took off pos cable while running to test alternator(i know now, dumb)
what damage could I have done, how can I test for damage. Car won't turn over now

Friday, June 15th, 2012 AT 9:49 PM

8 Replies

SATURNTECH9

MECHANIC
30,870 POSTS

So does it crank no start or no crank no start?

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Friday, June 15th, 2012 AT 9:56 PM

RASMATAZ

MECHANIC
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Have the battery and alternator load tested-start here

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Friday, June 15th, 2012 AT 9:57 PM

KBULLLOCK

MEMBER
4 POSTS

The car does not crank only thing I hear now is a metallic clatter sounds like it may be coming from the starter but before I took off the pos it only sounded like a low battery and would start if I charged it

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Friday, June 15th, 2012 AT 10:44 PM

KBULLLOCK

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4 POSTS

I am afraid I fried the computer

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Friday, June 15th, 2012 AT 10:45 PM

RASMATAZ

MECHANIC
75,992 POSTS

Either you have a bad battery and connections or starter motor-

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Friday, June 15th, 2012 AT 10:52 PM

SATURNTECH9

MECHANIC
30,870 POSTS

If the starter is inop I would make sure the battery cables are clean and tight. Also make sure the battery tests good and is fully charged.

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Friday, June 15th, 2012 AT 10:59 PM

KBULLLOCK

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4 POSTS

The battery tests good, I was wondering if there is a way to see if the computer is working without a tester obd2 it seemed to be an alternator problem(as it sounded funny) I think I damaged something as the problem seems totally different now

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Friday, June 15th, 2012 AT 11:07 PM

SATURNTECH9