Alternators

Doug Zator Bronze Member Username: Dz43893 Chicago, Illinois United states Post Number: 86 Registered: Jun-05	Posted on Wednesday, July 06, 2005 - 19:42 GMT around how old does ur car have to be to need a new 1
Isaac Gold Member Username: Carguy Post Number: 3482 Registered: Nov-04	Posted on Wednesday, July 06, 2005 - 19:44 GMT It's not determined by age of car. If your alternator is still producing close to 14v, then no need to replace it.
Doug Zator Bronze Member Username: Dz43893 Chicago, Illinois United states Post Number: 87 Registered: Jun-05	Posted on Thursday, July 07, 2005 - 21:28 GMT how can u tell?
Isaac Gold Member Username: Carguy Post Number: 3493 Registered: Nov-04	Posted on Friday, July 08, 2005 - 03:24 GMT Get a DMM and measure the voltage with the engine off. It should be around 12.5v. Now measure it again with engine on. It should read 13.5v - 14.2v. If you get those readings then it's fine.