Why won't my truck start? - 2

I have a 2004 ford f 150 and when I trun the key, all I get is clicking sounds. Even when I have it in accessory mode, the lights and radio doesn't really work. Everything has been working great since I bought it. Yesterday I had a new stereo, subs, and speakers installed all day. When I got the truck back, the guy said to keep it running for about 15 min because battery was weak from all the work on it. So I did, I think. But now I think the battery is dead and it won't start. What do I do?

Find a buddy with a GOOD battery charger, or have it towed to a service station, and they can re-charge the battery for you. Or, use AAA, and they'll run out a truck with a strong enough charger to turn the car over. Or, get someone with jumper cables, and jump start it.

It won't start cause its a Ford.

Ok being serious here. If you are getting a clicking sound it means the battery is dead. Replace it with a new one or refurbished one. Interstate sells good batteries. 15 minutes is NOT enough to recharge the battery. Your sound system guy doesn't know a single sh*t about how a charging system works. Alternators take hours to recharge a car battery(that is if the battery still has decent charge). They charge very slowly because the rest of the voltage being generated is being used to maintain the battery during driving and to power the rest of the car's electronics.

Go put in a new battery and it should start again. Also how much power is the new sound system drawing? Hearing that your stereo system guy said to drive it for 15 minutes to recharge the battery, I assume he doesn't know anything about upgrading alternators. If the system if drawing more power than the alternator can supply, you WILL get issues with the charging system(battery keeps dying, alternator keeps going). You will probably need to upgrade to alternator to a higher amp rating in the near future.

What everyone said about jump starting your truck and a new battery, plus if you're running a sound system, you might want to invest in a better alternator that puts out higher amps than stock so there's more current available to feed that hungry monster amp and sub and keep all the other electrical systems working properly and the battery charged.

Recharge the battery with a portable charger, or get a jump start and drive around for an hour or two while your battery charges from the alternator. Duh. You had also better make sure that your alternator has a large enough amperage rating to handle the new equipment or you'll continue having weak battery problems if the alternator can't handle the load that has been placed on it. It's a common problem created by idiots who don't understand current draw on an electrical system. Many high-power stereo amps, and powered subs simply draw more current than a stock alternator puts out, especially when other electrical equipment is turned on.