CTB

Recently, I had a battery indicator icon show up on the dash...I revved the engine and it went out...tonight, all of the indicators went to zero and after switching the engine off, it would not restart...solenoid made a clicking sound as if it had a low battery...btw, it is the original battery in an '05 F150 Lariat...is it the battery?, the alternator, the voltage reg.? or a low voltage cutout that I am not aware of...any ideas?

ford4wd08

battery for sure, it makes these trucks do some crazy things, replace your batteyr nad you should be fine

gone postal

The voltage regulator is internal to the alternator.

After replacing the battery, you might want to get the alternator checked, it's rare for a battery to suddenly go bad all by it's lonesome.

ford4wd08

if its original from 05 im suprised it lasted this long... if a battery wont hold enough charge to turn over the motor its usually dead..

zeon88

My 2003 did this about 2 mounts ago and it was mt alternator... take it off and have it cheacked at an auto parts store.

gone postal

I'm not, I'm still running the original battery in my '04 F150, my wife's 2002 Taurus was still running the original battery until the alternator died and killed the battery.

Modern batteries aren't like the old lead acid batteries, they'll last a long time if they're not abused. (the new ones are still largely lead acid, but that's where the simlarities end)

CTB

Thanks, to all... I will replace the battery in the morning and go from there...

CTB

gone postal

Get the alternator checked before you drive any length of time with the new battery. If there's a problem with the alternator, all you'll accomplish is killing 2 batteries.

yz85rider2002

buy an optima battery

gone postal

With all the issues I've seen on performance car forums about the Optima batteries they don't seem worth the extra $$$.