Ok im planning on buying my brother in law's iroc. I dont know much about it all I know is its a v8 with a tuned port injector on the motor. Hes sellin it to me for 700 cause he is tired of fooling with it.

question I have is he bought a new battery and altinator and some reason it kills the battery dead in like a min after start up. Can anyone shed some light or info to help me fix this?

I seen the car drive before and actually drove it and all was fine but when he was living with someone and had to move out this problem occured started after he got his car off the property so I think they messed with something.

any help would be appreciated

 

You might remove the battery ground cable, then remove the wires to the starter solenoid post and wire brush all the terminals and reassemble everything as alternator may be working, but high resistance between alt and battery and battery not being recharged.
Also, at night, view the Camaro and check for any light(s) on.
No lights, then next step would be to insert a test light between a battery cable and battery post.
Any power drawn will light the light.
The brilliance of the test light will tell the power drawn. Bright light, heavy demand.
If bright light, then pull fuses one by one until light goes out or dims. Then disconnect any add-on aftermarket items.
Remember, there will be a slight brilliance due to the radio presets/clock and ECM memory.

 

It kills a 600+ amp battery in less than a minute while the car is running?

 

yeah thats what i dont understand

 

I don't think you would be able to kill a healthy battery in a minute even if you were dead shorting and using it as a welder. I think you have a poor cable/wire or connection in the charging system.

 

well we have killed two or three so far. when we put the key in an turn the battery reading will say a good 13 volts and when the car gets started you can watch the battery on the dashboard cluster just drop rapidly until the car just dies.

 

Then you have a poor or non existent connection between point A (the alternator) and point 2 (the battery). That, or the exciter wire, which is one of the wires on the alternator plug that connects downstream from the alternator output line, is broken and the voltage regulator isn't being told to activate. You can:
1) take a small screwdriver and stick it through one of the vent slots on the back of the alternator to touch the back side of the voltage regulator (the shiny metal part you see that is connected to the "plug"). Touch the screwdriver to both the voltage regulator and the case of the alternator, don't worry you wont zap anything or anybody. What that does is puts the alternator into a full charge mode, and you should hear it load down and maybe whistle. Also watch what your gauge does. If that doesn't show a charge on your gauge...
2) Find yourself a length of 10 ga. wire and connect it directly from the output terminal of the alternator to the positive post of the battery, and see what happens.