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Q: About Six weeks ago, I replaced the alternator and battery because it wouldnt on 2006 Dodge Magnum

start. After the car was repair four days later the same problem. The car would not start at all, the car will not turn over. Could it be the starter the reason why it is not starting.
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You would need an amp meter disconnect one cable of the battery put your Amp meter in series with the battery cable that has been removed. Note the draw say for example 15 Amps, with the keys out of the ignition, doors closed driver's window down, start removing the fuse links and fuses one at a time until the voltage draw goes away to zero (or near zero about .02 to .05 Amps is about normal for a modern vehicle with a clock, stereo and other things that need "keep alive memory"). It is that circuit that is causing the electrical draw, then look at a wiring diagram, see what electrical consumers are on that circuit and start to isolate each circuit to see which is the culprit. Modern cars have lots of computers and electronics that need constant battery even with the key off so parasitic draw of .2 Amps may be normal sometimes things stay "live for a minute or two after the door is closed so wait and look at the draw after a minute or two. You will need a wiring diagram, Autozone have some popular workshop manuals for free on line once you register (for free) on their website There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
Sounds like you have a draw on the system that is causing the battery to drain down even though it is shut off. Need to have a qualified shop inspect for the draw.
You would need to have the shop first verify that you do have a draw and then would need to remove fuses one at a time to isolate the circuit causing prob and then go from there.
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