 alternator not charging |
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| biker bob |
 Apr 6 2011, 02:47 PM
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#1
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Member  Group: Members Posts: 53 Joined: 25-March 09 From: Eureks Springs Ar. Member No.: 10,200 Region Association: Southwest Region  |
Started the car (72 2.0 L) this morning to go for gas. Alternator light stayed on for about 15 seconds after engine started then went out. Restarted the engine after getting gas and the light went out. Returned home no issues. Restarted engine after about 30 minutes. The alternator light came on and would not go out. Drove around the block and light remained on. Checked charging at battery NO charging.
2000 miles on new belt, new Bosche alternator,and new Bosche voltage regulator. Alternator wires properly plugged into the relay board. Belt properly adjusted. Transmission ground strap clean and tight. Help needed. |
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| Spoke |
Apr 7 2011, 09:41 AM
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#2
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Jerry Group: Members Posts: 6,992 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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About my little test, I should have added one more thing in this and it gets to a startup sequence with these alternators.
When you short D+ and DF together, this does tell the alternator to produce full charge. But you still need the alternator light connected to provide a bit of charge to "bootstrap" the voltage. In other words, the light provides that little bit of electric current to start the alternator to produce voltage then D+ will power DF on its own and then you will be testing the alternator. So, modified alternator test is this: 1) Remove VR. 2) Place a wire between D+ (spade towards front-right of car) and DF (spade towards front-left of car). This keeps the alternator light in the circuit for bootstrap purposes. 3) Start car, rev engine, measure battery voltage. Alternator light should go out too. |
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Posts in this topic
biker bob alternator not charging Apr 6 2011, 02:47 PM
McMark Clean connection at the starter? Failed wiring ha... Apr 6 2011, 02:49 PM r_towle give the voltage regulator a good solid tap tap ta... Apr 6 2011, 02:51 PM Jeffs9146
:agree:
If it still doesn't charge remove t... Apr 6 2011, 02:57 PM Drums66 ....after 2000mi alternator& or voltage reg...... Apr 6 2011, 02:58 PM biker bob Clean tight conections at starter. Light still on... Apr 6 2011, 03:14 PM r_towle Sorry to say, pull the alternator and have it benc... Apr 6 2011, 03:20 PM biker bob I have checked everything that has been suggested ... Apr 7 2011, 05:23 AM jt914-6 Make sure you haven't kicked out a fuse gettin... Apr 7 2011, 05:53 AM Spoke You can check the alternator in the car by disconn... Apr 7 2011, 06:32 AM biker bob One last thing to add. The brake warning light is... Apr 7 2011, 08:55 AM 76-914 Some great info here. Is there a way to bench test... Jun 23 2011, 10:44 AM
Dave_Darling Brake light: Make sure the handbrake handle is do... Jun 23 2011, 04:36 PM |
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