My boyfriend has a '85 Ford Econoline van...(I believe that's what it is...) and he got a new alternator put it in but the van still won't start up without getting jumped. What other reasons can there be for the battery not getting power? We were told it could be the voltage regulator...but when looking for the voltage regulator there is an issue...we can't FIND it! The van was running fine until the alternator went (after trying to install a sound system) and then now this problem....any suggestions?