Question about 2002 Ford Explorer
Have 04 F-250 diesel 6.0. Started acting like batteries were going dead. Batteries less then 1 year old. Put on charger overnite. Now truck has no power whatsoever. No lights nothing nowhere, put in key, turn nothing, no dash lights no noises nothing
Begin by checking your battery. Use a multimeter set to a voltage range of at least 15 volts and connect it to the battery posts NOT THE LEADS OR TERMINALS. If it reads good (12volts or more) have someone turn the key on whilst you are still reading the voltage. If it drops out to less then 5 or 6 volts, replace your battery. If it stays above 11.5 volts, place the multimeter onto the battery cable terminals and check the voltage there. If it is less then on the posts, remove both terminals and clean the connecting surfaces with some sandpaper, refit and tighten. If the voltage is still low, replace the battery. I would always suspect the battery first as a starter fault usually means a no go situation from the start. As you said it began to act like a discharged battery before it failed, I would suspect the battery. If you cannot locate anything with the battery, replay to me and I will explain how to do a leakage check...
Posted on Jan 31, 2010
Check the cables first - be sure they are tight and not corroded at the terminals - then you'll need to have the battery load tested. If the alternator is not charging properly - or is backfeeding voltage to the battery - it could be damaged.
What voltage is it reading after being on the charger?
If none - there is a dead cell and it needs to be replaced.
Get the alternator checked to avoid replacing the bettery again.
Any ports store will check the alternator for free.
Posted on Jan 31, 2010
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Posted on Jan 02, 2017
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