Okay, so in the begining, truck would not hold a charge on the battery, thought it was a draw from the clock on the radio constently being on only because it was never an amidiate draw, took out the radio, still same issue, but now it's a faster draw, next alternator and battery, then it would keep a charge but die after driving for a bit and not have a charge. changed several fusable links, same problem and the fuses were blowing, got resetable links. same issue, then we changed the ignition switch, and the starter. starter blew sparks when we got it tested. now the key will turn and the battery still has charge but it wont fire at all, going to thejunk yard to get another key assembly, but im not sure that will work. what's next should i just give up........ i dont have the money for a professional to fix it, and it's the only car that my husband and i have. running out of options and time, monica
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go to an auto parts store that will give FREE battery & alternator tests. if both are confirmed good. suspect a parasitic or phantom drain. meaning, even if the the car was turned off (no key in ignition), there's a load (in addition to computer, radio, security system memories= these have neglible draw) which is still drawing current from the battery.
Sounds like you have a battery draw.Check for any interior lights or radio or something else on drawing power.With a volt meter check each fuse to see which one is drawing power and the one drawing power will be the culprit draining the battery.Also with engine running check the voltage coming out of the alternator it should be 13-14.7 volts.
Possible is the clock. The battery might not hold charge. -How long you have this battery...? -Each battery's life is last Only 5 Years. -Here is a sample test: Let the engine run for about 15 min, turn it off. Disconnect both battery's cables and hook up a voltmeter to it. How many volt you first test. and then wait for 10-30 min and test again to see how much you get. If it's lower than first test then the battery doesn't hold charge. Time to get new one.
Probably an alternator problem. That is assuming the battery holds a full charge when disconnected. there is a wire that connects from the battery to the alternator and if there is a problem in the alternator, it can draw the juice right out of the battery.
You can start by disconnecting the battery ground cable, connect a 12 volt test lamp between the cable and the battery post, If it lights up you have a short. and you'll need to start pulling fuses one at a time until the test lamp goes out. at that point you will know where to look for short.
You either have a bad battery or a bad alternator. Most alternator shops and Advance auto parts store will check both for free. It is possible for an alternator to charge the battery while the car is running but kill it when it is switched off because of a bad diode in the alternator.
well, it will with the headlights on..... do you mean it loses a charge if parked, or driving it, the battery goes dead? if parked over night and its dead, there is a draw somewhere, make sure theres no dome light or glove box light on, cell phone charger, ect. A shop will need to verify the battery and altenator are good before doing a "parasitic draw test".... the max it should draw is 250ma.