S2Kevinn

had my car sitting for two weeks, my voltmeter reading has the battery at 12.96. any possible indicators as for why the car cranks but won't start?

S2Kevinn

just checked the fuses and plugs, both of which are fine. any ideas?

Stealth_SUX_

Just because you have full voltage doesn't mean you have full amperage. Its not volts that start the car, you need the amps to back it up.

MegaTRon

yes. charge the battery or get jumper cables. simple fix.

S2Kevinn

I tried to jump it, and it didn't work as well.

aresk3b

Would you like to explain more details about the symptoms?

Does it crank?
Would it seems to turn on?
Does it bogs or sputter?

As said above, the ability to start the engine is the amperage (A) of the battery, also referred as cranking amps.
What did you use to jump start your car? did you connect the cables as shown on the user manual?

SgtB

12.9 is low. Try charging it, or letting the jumpers set on there for a few minutes. If your car sat too long in really cold weather, it may have killed the battery permanently. Your symptoms are classic dead battery.

towingtime

12.9 is low??? I thought around 12.4 and up was a fully charged battery

12.9 seems pretty charged up to me, when the cars running its going to be higher due to alternator..

Is teh car getting spark?
can you hear the fuel pump prime up when you turn on the key before you start it?

SgtB

Doesn't matter. You can not check a battery with a volt meter. It is impossible. You have the hook it to a load pack and check amperage.