odd 1 this i have had a prob starting my fd once or twice a month now as soon as i add a jump pack to start no prob tested batt and altinator all ok i do have a amp kit fitted and is a small jap batt any ideas guys ??
Personaly mate I would be getting a new battery & TIE IT DOWN!!!! your battery jumping around has probably nakerd one of the cells!!! have you checked the waer level in the battery or is it a sealed type???
Jono