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Car Battery. Electrical Problem. 32 Gtr

Angus Smart

By Angus Smart,
in General Maintenance

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Angus Smart Grand Master

Angus Smart

Posted
Posted

Car started fine at work! i got home. pulled up in the driveway. turned off car. opened roller door (electric door has had the dick for some reason) and went to start it again! and it was like i had no battery at all.

got dads car out and jumpered it. got it inside the garage and left it run for a bit. turned it off.. tried to start again and the dash lights barely light up.

i have a dry cell sealed battery which i have never ever had a power problem with. tho i did get it out of a car at my brothers work. so it is slightly second hand :thumbsup:

is there anything other than the battery that could be my problem??

Car be the 32 gtr

Cheers

Andrew

Beer Baron Grand Master

Beer Baron

Posted
Posted

sounds like alternator to me. check the battery with the car off make sure it's ok, then check what the altenator is putting out when the car is running.

Angus Smart Grand Master

Angus Smart

Posted
  • Author
Posted

Battery reads 12.7 when turned off

When i try to start now, I hear what i think is the fuel pump trying to kick over. and the dash lights are faded. but then they come alite and fuel pump kicks in for a second. then it goes all dim again.

Angus Smart Grand Master

Angus Smart

Posted
  • Author
Posted (edited)

ok now with what i'd say a shorting sound somewhere at the rear of the car above the fuel tank???

Thats the only way i can descrive the sound.

Tho i think i usually hear it when its running good. cant quiet remember

Edited by Angus Smart
Angus Smart Grand Master

Angus Smart

Posted
  • Author
Posted
There are any number of previous threads that describe how to test and evaluate these sorts of problems.

My initial guess is a dead voltage regulator.

well generaly speaking. its alot easier to just ask. considering I DONT KNOW WHAT THE PROBLEM IS

and to check for a dead voltage regulator is done how?

blur Proficient

blur

Posted
Posted

clean the battery terminals... check the voltage after the terminals while cranking ill bet you find a massive drop. if it was the alternator, the car would have cut out before you got home, and not continue running after you jump start it, and battery wouldnt show 12.7v either.

Angus Smart Grand Master

Angus Smart

Posted
  • Author
Posted
clean the battery terminals... check the voltage after the terminals while cranking ill bet you find a massive drop. if it was the alternator, the car would have cut out before you got home, and not continue running after you jump start it, and battery wouldnt show 12.7v either.

Yeah a massive drop is what i found! down to around 4 volts.

i had battery on charge all night and tried to crank it in the morning. also with my jumper pack. which also seems it had the dick yesterday as it wouldnt charge up over night either.

the battery terminals are very clean! its a dry cell battery so they dont really leak or get dirty.

I didnt get to check the alternator. as i had to move too many cars around to be able to jump start it.

This would have to be the first electrical problem i've had! the car hasnt missed a beat!

cowie165 Veteran

cowie165

Posted
Posted

You need ~10V to turn the motor.

I had the same problem as you about six months ago. Battery was flat. It also read 12V static but you could see the drop on the voltmeter as you cranked it.

PS You'll receive more help around here if you keep your cool.

arep3 Experienced

arep3

Posted
Posted

sounds to me like the battery is dead. how old is it? try to find a letter and a number thats been burnt/melted into the top of it. example. L6 would be november 2006. letters are for the month except they dont use I cos it looks too much like a 1 A=jan B=Feb...H=Aug J=Jul etc

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