*help* Car Wont Start

[Noel]

Ok here is the story...

I just bought an R33 S2 Sedan. When i went to see & get car inspected it had been sitting a while so needed a jump start but when i picked up car it was fine & started first go everytime all week...On the weekend my cousin installed an alarm & we also put in a HU & Sub & Amp...Anyhow car would not start after install so we figured battery had been drained due to boot/doors open etc whilst installing so we gave it a jump & i drove home no worries...

Next day go to start car & nothing, just click click click...I did a search on here & after reading many threads I took the battery out, gave it an over night charge, got multimeter out & battery read at approx 12.3-12.5v, so I whacked it in the car & started first go, sweet (i thought)...I checked voltage whilst running & it read 14.18 at idle & rose to about 14.26 under loan 2000-3000rpm so to me alternator is was working fine...

Anyhow i drove to the gym, worked out for an hour or so then came out & it started first go but was a bit slow to kick over...Went home ate etc then went to go out about an hour later & click click click it would not turn over? Thinking maybe something was draining battery i checked again & it was still readin 12.3-12.5v?

What the hell is wrong? I figured it cant be the starter motor cause it jumps fine, alternator seems to be working? & battery has charge? I am Stumped

Please help!!!

Thanks

Noel

[blind_elk]

If the battery has "died" several times, then it's just about past its used-by date.

Get a new battery.

[d00dz]

New battery needed!

Is the battery you have now one of those "pitwork" ones? If so they normally die pretty quickly. I know during the first few weeks of getting my car I had similar problems.

Also another SAU member's GTR left it for a week and it wouldnt started (Also had a pitwork battery - I think they are std. nissan ones from japan), tried jumper leads, pushing it no go. Changed the battery over to a new one and it worked straight off.

There is a group buy on the FS from wrxhoon who has those dry gell type batteries for $150 I think. Check it out.

[Noel]

New battery needed!

Is the battery you have now one of those "pitwork" ones? If so they normally die pretty quickly. I know during the first few weeks of getting my car I had similar problems.

Also another SAU member's GTR left it for a week and it wouldnt started (Also had a pitwork battery - I think they are std. nissan ones from japan), tried jumper leads, pushing it no go. Changed the battery over to a new one and it worked straight off.

There is a group buy on the FS from wrxhoon who has those dry gell type batteries for $150 I think. Check it out.

Nah its a Bosch with Japanese writing all over it...

What i dont understand is if its the battery that is stuffed why is it reading 12.3-12.5v??...Can a battery still hold correct charge & work all accessories etc but be damaged in some way (maybe cells) for it not to be able to provide enough voltage to starter motor?

[RBwhatever]

Get a new battery.

[Noel]

Get a new battery.

Just want to be 100% sure it is the battery & not someting else

With a previous car i thought my battery was dead, went out & bought a GSYuasa then 2 days later that was dead & found it all it was was a bad connection with stereo which was draining battery.

& i still am not convinced it is the battery beacuse according to multimeter its not flat???

[Medium Dave]

Volts v amps - Voltage may be ok but does not have enough current.

[RBwhatever]

Is there a date engraved on the battery? That date would be the day it was fitted. Regular batterys only last for 2 or 3 years depending on what you buy. I had a battery die in my old pulsar, it started up all fine and dandy for 2 years, then one morning the car wouldn't start, so i charged it, the next day it was dead again. So i bought a new battery and everything was fine again.

If your battery is old it probably just karked it.

[Noel]

Volts v amps - Voltage may be ok but does not have enough current.

is there anyway to check this & does this explain my symptoms??

[d00dz]

Not enough amps to crank (Lets get crunk tonite. lol sorry), its not always volts that are required to start a car.

Use a AMP Meter, or best yet get a mutimeter and read the amps. Not sure what AMPs are required.

But I reckon too much trouble as..

Im 99% sure that the battery you have is dead.

Its just like any old recharable battery you may have. (Especially SONY camera batteries, worst ones ever). Charge a battery many many cycles and after many many times it will loose its "chargeablity" (if thats the correct term).

[Noel]

Not enough amps to crank (Lets get crunk tonite. lol sorry), its not always volts that are required to start a car.

Use a AMP Meter, or best yet get a mutimeter and read the amps. Not sure what AMPs are required.

But I reckon too much trouble as..

Im 99% sure that the battery you have is dead.

Its just like any old recharable battery you may have. (Especially SONY camera batteries, worst ones ever). Charge a battery many many cycles and after many many times it will loose its "chargeablity" (if thats the correct term).

Ok picked up a battery yesterday & whacked it in last night & seems to be fine now ;-) (fingers crossed)

I got myself a battery from a wholesaler called Supercharge Batteries http://www.supercharge.com.au/

Battery i got was MF55B24R. Its 450CCA Has 3Yr warranty & is a zero maintenance battery...Has pencil terminals so no mods required & also is the same width as std battery, so all you need to do is take out battery tray, whack in new battery, clamp it down with original brackets & away you go!

*Note this is for Underbonnet only as its not sealed*

[d00dz]

Good to hear!