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1993 Volvo 240: Alternator Issue

posted by  onlyVolvo on  Sat Sep 19 13:41 CST 2015
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last visit: Thu Jun 26 20:57 CST 2014
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Many thanks for the reply to my issue described below... It was the alternator ground wire that caused the charging problem...Can the ground wire be replaced without having to remove the alternator?

Thanks for any feedback.

OnlyVolvo







My wife's 1993 Volvo 240 has an 'apparent' alternator issue. We have done troubleshooting as follows:
(1) Car battery was drained and would not hold a charge. Replaced with new battery.
(2) Checked voltage at battery terminals, 12.51v but was not charging when car started up. Voltage remained the same.
(3) Replaced Voltage regulator on alternator. Still no change. Battery was not charging with engine running.
(4) Checked + and - battery cables for poor contact due to corrosion. Cables were both fine.
(5) Checked alternator belts for tightness. Both within spec.
(6) Checked negative cable as follows with Multimeter: Hooked positive lead to battery + and negative lead to alternator casing... Rev'd engine to ~1500rpm, Showed a -1.59 V reading which really should not be greater than -0.05V. Can anyone tell me what may be wrong? What is best way to correct this issue? I think the Alternator is fine...

Any advise will be greatly appreciated.

Many thanks.

OnlyVolv






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