Mechanics

ANYONE KNOW HOW TO FIX ONE CHARGEING SYSTEM

1991 Dodge Dakota • 164,000 miles

Does not charge have 12 volts running to alt have power running out of alt help please
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Huey777
March 18, 2012.




-If I were you have load tested at an auto parts store such as NAPA to check its condition-start here


Tiny
Rasmataz
Mar 18, 2012.
New bat and new alt are in truck replaced when it started this put brand new parts in still doing same thang


Tiny
Huey777
Mar 18, 2012.
INITIAL CHECKS
Before proceeding with charging system diagnosis, ensure: Battery is fully charged and in good condition
Battery cables are in good condition with connections clean and secure
Alternator belt is in good condition and properly tightened
Alternator and SBEC wiring harness connections are clean and tight.
Engine ground strap is in place
UNSTEADY OR LOW CHARGING
Check for loose alternator belt, charging resistance too high, defective alternator, loose alternator ground wire or corroded battery terminals.

Chedck and test the fusible link and the dark blue at the alternator for battery voltage coming from the ignition switch


Tiny
Rasmataz
Mar 18, 2012.
Have power coming from blue and green wires and power from bat have checked grounds have checked and reconceted computer have power just not charging


Tiny
Huey777
Mar 18, 2012.
What do you have on the dark green wire?


Tiny
Rasmataz
Mar 18, 2012.
11.34


Tiny
Huey777
Mar 18, 2012.
Do this get a multimeter read the battery voltage before you start the vehicle-record it, now start it up and read the voltage again-let me know the readings


Tiny
Rasmataz
Mar 18, 2012.
Before start 12.14 when running green wire 11.09 blue 11.37 batt went to 11.70
AD


Tiny
Huey777
Mar 18, 2012.
Its not charging-have the alternator load tested


Tiny
Rasmataz
Mar 18, 2012.
Alt tested good


Tiny
Huey777
Mar 22, 2012.

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