Another car woah :(

[grmreapr]

So I went driving my car last week lights started to flicker and when I shut it off it wouldnt start again so we popped started it and I drove it home. Finally got to try to look at it today well battery was dead so I put it on the charger for a while and it started up voltage meter read 12.7 turn on my lights (hids by the way) drops down to 10.2 figured it was alternator so I unhook the negative battery cable car still runs and now the voltage meter reads 11.3 now im really confused im guessing its the start of my alternator going anyone got any other ideas im gonna be ripping the motor hopefully next week so i would like to know what the problem might be so I can fix it whille the engine is out. p.s.- its an sr20det blacktop if it really matters

[MA JasonG]

Take your alternator off and take it to a discount or autozone. They will tell you if theres something wrong with it.

[s13bassboat]

any voltage reading off of an alternator less than 12 v is considered a drain on your battery. so i say replace your alternator and if that doesn't fix your problem check your engine grounds.

[mattrcspeed]

somthing like that happened to me about a week agoo i was on the highway goin about 110 and the lights just shut off i have yellow fogs h.i.d and 8k head light h.i.d soon after that the car just dies i pulled over to a reststop poped the hood checked all fuses every thing was fine a frend of mint that ws with me gave me a jump the car started and then died as soon as i took of the jumper cables so i started to play with the positive cable on the batery and seen its sparking so the 2 cables that go to the batery on the positive side wer loos and didnt conect took them out and cleand them worked fine but i got realy scared on the freeway duing about 110 and having the car shutoff and no power sterign realy suckedddddd

[mests13]

That exact same thing happened to another of my older 240's, it ended up being the alternator.

Take your alternator off and take it to a discount or autozone. They will tell you if theres something wrong with it.

You shouldn't have to take it off. Autozone has a tool that they just hook to the battery while the car is running that reads the alternator signal.

[92KA-T]

same problem.. i replaced the battery just going at it not thinking.. and the advanced auto people cant check for a bad alternator if u got a bad battery.so i got a new battery by the next day it went bad too.. so went back and replaced the alternator... and got a new free battery(2 yr replacement) and its good now..