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Technical => Electrical Tech => Topic started by: lakenheath24 on August 09, 2010, 08:44:29 PM

Title: Battery is discharging
Post by: lakenheath24 on August 09, 2010, 08:44:29 PM
This is my 88TC.  If I dont drive it everyday, the battery drains.  The battery is good, and I just had the alternator tested and the voltage regulator is bad.  Will the diodes in there cause the battery to discharge?
Title: Battery is discharging
Post by: Haystack on August 09, 2010, 11:40:34 PM
Yes, they will.
Title: Battery is discharging
Post by: lakenheath24 on August 10, 2010, 08:32:03 AM
cool thanks...this was driving me nuts.
Title: Battery is discharging
Post by: hcor on August 10, 2010, 11:11:36 AM
yes for sure, very common problem on the earlier models with external regulators. I have a couple used alts for 87-88 TC if you need one.
Title: Battery is discharging
Post by: lakenheath24 on August 11, 2010, 09:10:12 AM
Thanks hcor, but needed to get one ASAP as it's my DD.
Title: Battery is discharging
Post by: hcor on August 11, 2010, 02:17:51 PM
No problem.
Title: Battery is discharging
Post by: jcassity on August 17, 2010, 10:24:58 AM
Quote from: hcor;331370
yes for sure, very common problem on the earlier models with external regulators. I have a couple used alts for 87-88 TC if you need one.


even for internal regulators.
i started my paracitic draw testing right at the solenoid, found out with my bulb that the alt feed was still lighting up the bulb with no key in.
this was on a EECIV / TFI FI 1990 ford bronco 351w with 5speed.
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