1988 Ford thunderbird Battery drain

biddle

Forum Moderator
Staff member
If your alternator is bad, your car will actually go dead while you are driving it. They can test your alternator at most auto stores like Auto Zone for free. If your car is running and the next day won't start could be a bad battering or other issue draining the battery they can teat it as well.
 
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If your alternator is bad, your car will actually go dead while you are driving it. They can test your alternator at most auto stores like Auto Zone for free. If your car is running and the next day won't start could be a bad battering or other issue draining the battery they can teat it as well.
I got a new battery and theres no paracitic drain, not sure what it is.
 

64ZCODE

Well-Known Member
Easy to tell if there is a parasitic drain by removing one of the battery cables and attaching an amp meter between the cable and the terminal it was on. If no, and it will start before you drive it but not the next morning, then it would not be a charging problem. If the battery is not the culprit then you could replace the battery cables, making sure the end point connections are clean. This should be done every 5-10 years regardless.
 
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