1960 Pontiac Catalina Cannot find drain on Battery

1960 PONTIAC CATALINA
70,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
BLASEP
  • MEMBER
  • 3 POSTS
I have a lot of questions about this car as I am new to working on old cars. The first problem I would like to solve...There is a drain on the battery that kills it overnight. I pulled all the fuses while watching an ammeter and it did not change. I have a drain of .11 amps. When I disconnect the alternator it drops to .7 amps. Better but still not good. I cannot find the other drain. It has a .7amp drain with the ignition "off" and when I turn the ignition to the on position it drops to about .4amps??? Could it be the ignition switch?? Any help is appreciated. thanks
Apr 27, 2009 at 2:24 PM
Avatar
PEAR69
  • ✓Experienced Mechanic
  • 1,482 POSTS
Disconnect the starter solonoid and check amperage draw. Then disconnect the starter (battery cable) and check draw...It is unlikely that the ignition switch is to blame. Is the wire harness origional?
Apr 27, 2009 at 2:45 PM
Avatar
BLASEP
  • MEMBER
  • 3 POSTS
ok thanks Ill check the solenoid. Im not sure if the wire harness is original, I think it is...but.. there was a fire under the hood and all or most of the wire under the hood was replaced.
Apr 28, 2009 at 12:16 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle