Batt, Alt, or Slow Drain?

[classicauto]

Are you running a stock alternator?

Check the voltage at the battery with a DMM when its running. Stock gauge isn't all that reliable.

If you're getting a major drain with the headlights on, I'd start poking around there for something thats shorting out, or some wiring with high resistance. I've seen some headlight harnesses (from the stock three prong plug back) that are pretty green/black inside.

[vex]

Originally Posted by classicauto

Are you running a stock alternator?

Yup, stock 70amp. I want to upgrade to high output, but I keep putting it off because I don't want to dig into the harness quite yet.

Check the voltage at the battery with a DMM when its running. Stock gauge isn't all that reliable.

Alright. I'll see if my bro-in-law has one laying around. I would use mine but it's about 200+ miles away right now.

If you're getting a major drain with the headlights on, I'd start poking around there for something thats shorting out, or some wiring with high resistance. I've seen some headlight harnesses (from the stock three prong plug back) that are pretty green/black inside.

They're not stock plugs and I don't think it's a corrosion problem. I just think using halogen is actually eating up more amperage than stock hence why switching over to HID would remedy that problem--I'll look into the harness though. May even pick up some dielectric grease to squirt in the plugs.