Hey guys, i'm hoping someone can help me out with this problem I just recently started having. I have a 2001 Hyundai Sonata V6 with 95k miles. Just yesterday I start up the car no problem in the morning and drive to drop off my son at daycare. I kill the engine and drop off my son. Less than 5mins later I get back in the car and nothing. It's as is if I didn't have a battery in the car at all. I get a guy to help jump my car and it starts by showing me the lights on the dash very dimly and takes a really long time to finally gather up enough juice to crank. After this, I immediately go out and buy a replacement battery. Everything starts up fine and i'm good for the rest of the day. Next day the car starts up fine in the morning and I go to work. When I go to start up the car for lunch, same thing no power at all. Is it possibly the wiring or maybe a fuse? Alternator?

Any help is greatly appreciated as I'd hate to keep buying parts I may not need!

 

its real easy to see if its your alternator.

1st make sure that the ground wire (the one which attaches to the engine)
and the positive wire (which attaches to the fuse box) are both clean so they conduct well.

next get a boost again and disconnect the POSITIVE terminal while the engine is running, if it dies right away then bad alternator.

hope this helps