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Re: Battery being drained
Quote:
Originally Posted by RichardJ
Before you take it anywhere, just remove the Bat wire & plug connector from the Alt and see if the battery still drains down in the same time period. A bad diode may not stop it from charging close to normal and most flaps alternator testers can't detect the difference. If battery stays charged, the Alt is probably bad.
OR:
Remove battery cable from battery and place an Amp gauge between battery post and battery cable. You should be seeing a discharge reading, unless it's a dirty battery top as MR48 suggested. Remove Alt cables and if the Alt is the culprit, the discharge reading will go away. If the discharge reading stays, then start removing fuses and accessory power, one at a time.
OR:
Remove battery cable from battery and see if it sparks when you touch cable back to battery post. Remove Alt wires, then see if battery cable still sparks. Take your own chances with sparks around a battery.
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Great advice right there...
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My Trucks:
1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project
1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver
1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck
1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck
2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White
2002 Chevrolet 1500HD 4x4 Crew Cab 6.0L 4L80E Red
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