what should the battery voltage be while cranking

[Wayne]

I hooked my fluke up to the battery it has 12.6 volts I did a max min and cranked the engine the min was 8.8 and max was 14 .6
I really wonder how low a voltage you can have during cranking and the pip signal still work and the engine start. does any one know and is these voltages average for a older battery

 

[Wayne]

well according to u-tube video if it drops below 9.6 with a fully charged battery the battery is weak. sound right to you all

 

[ttocs]

how long are you cranking on it? Any battery will go down to that after a little while cranking on it

 

[OnyxCobra]

If the car is still starting fairly easy i wouldn't worry too much about it. If it's cranking slowly or something then it might not be a bad idea to replace it, it sucks getting stranded. If you know the battery is old it wouldn't hurt to get a new one.

 

[Wayne]

guess where my gt is tonight ... :dontknow:
I drove it to work today hint hint. :crybaby2:
the motor cranked over fine but no fire on the plugs again pulled the distributer out "got no pip" took it to the zone for a warrenty exchange "bought it there in 2005 but they wont have one till tomorrow. :crybaby2:

 

[Wayne]

put the new dizzy in battery read 12.5 volts put the fluke on did the min max thing cranked car started right up min voltage during starting was 8.4 put the timing light on it set it to about 13degs btdc and drove it home just wanted to update every one.