problems with the stang

[Shibbydude529]

sup i have been having problems with my car lately i mean i just bought a new battery and it is dead within one day anyone have any ideas what it could be also my car has been backfirin but only under full throttle around 4 grand i was thinkin spark plug wires but im not sure thanks

 

[Js5ohLX]

Take the negative battery cable off, put a test light between the cable and the battery. If it lights up, that is a draw on the battery. Then start pulling fuses till the light goes dim and you found were the problem is coming from. There will always be a slight draw, so the test light will always be on, just real dim when there are no problems. Good luck, it can get nasty.

 

[jrichker]

It is usually the little things you don't think about that kill a battery with parasitic drain. Look for courtsey lights, glove compartment lights that stay on all the time. Poorly wired sound systems & alarms will also drain the battery without you knowing about it.