new alternator

Hulksmash · #1 07-11-2011, 10:38 AM

i need to get me a new alternator the stock one aint cuttin it anymore anything over 120a would be fine but i dont really know where to go to find these beasts any links/help would be nice =D

TenSilver · #2 07-11-2011, 11:41 AM

You should be able to get a 95 amp at Autozone or O'reilly's. Why do you need one over 120 amps?

brett20 · #3 07-11-2011, 12:15 PM

he prob has alot of lights and a huge system maybe?

FireRanger · #4 07-11-2011, 02:59 PM

120 amps is not enough? First can you list what you're running in this truck to determine how much you actually need. Also, remember you'll never get full capacity at idle and you should definitely get an overdrive pulley for it.

Hulksmash · #5 07-11-2011, 08:20 PM

just put on an electric fan and the stock altenator cant keep up even with all accessories off

FireRanger · #6 07-12-2011, 03:58 AM

Ok. Well I have good news for you. You don't need a massive aftermarket alternator. E-Fans so not draw that much current. If the fan is putting you into a deficit of electrons, then your alternator you have now is just toast. A stock alternator will keep up just fine if it isn't broken. What is indicating to you that it isn't keeping up?

Hulksmash · #7 07-12-2011, 06:36 AM

when i start the truck the volt meter is right in the middle right where its suppose to be i drive for 20min or longer and it starts aiming twards the low side where as befor it didnt, it draws 10amps if thats helpfull at all

FireRanger · #8 07-12-2011, 08:04 AM

10 amps is nothing. You're alternator is probably shot. When u turn the key to ON before starting the truck, does the battery light come on and does the air bag light come on for a few seconds too.?

naturecakezzz · #9 07-12-2011, 08:39 AM

I got a 120 amp from advanced auto parts

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Or its 130.... I forgot... But im running .... 4- 6inch piaa 520s, 2 kc daylighters, a 800 watt amp, a double din deck, a cb with a pa system and some misc do dads.... A fan shouldn't be pulling that hard

Hulksmash · #10 07-12-2011, 06:12 PM

huh my alternator must be toast then cheers guys

FireRanger · #11 07-13-2011, 03:43 AM

Quote:

Originally Posted by FireRanger

When u turn the key to ON before starting the truck, does the battery light come on and does the air bag light come on for a few seconds too.?

well??

Hulksmash · #12 07-13-2011, 12:59 PM

no it dosent

FireRanger · #13 07-13-2011, 02:19 PM

Well then there's your problem. Fuse #15. 7.5 amp. Remove and replace. If that fuse is blown:

- Battery light will not come on
- Airbag light will not coming on
- Alternator will not get field current to begin generating power.