Inconsistent voltage, Not very electrifying |
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Inconsistent voltage, Not very electrifying |
iankarr |
Jul 24 2023, 10:09 AM
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#1
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,480 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
Hi Guys,
Trying to sort through a puzzling situation. My car started bucking like a bronco(D-jet) and I noticed that the voltage was super low (like 10). I fortunately made it home. Changed out the voltage regulator with one I had in my bin and everything seemed to be fine. 13.5 when running, no more bucking. Now I'm seeing that the voltage is inconsistent again. Sometimes it's 13.5 when running, then it dips to around 12, then comes back up. Occasionally the red light will come on for a few seconds, even when running at 3K rpm. When I put the headlights on, the idle drops by 500rpm and stumbles. The belt is tight and the alternator was (supposedly) rebuilt recently. Anyway...my thinking is it can only be one of four things: – Bulb in the cluster (unlikely, but possible). I believe it's stock. – Voltage regulator – Alternator – Battery Do you guys have any simple tests i can run to eliminate any of the above before I just start throwing parts at this? Other thoughts? Thanks! |
ejm |
Jul 24 2023, 02:01 PM
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#2
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I can see the light at the end of the tunnel Group: Members Posts: 2,693 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
You swapped out the regulator and the problem went away. Does it come back if you put the original regulator back in? Since the regulator (and alt harness) both make 3 connections when you plug them in there is no "feel" if each of the connectors are tight. Check the relay board terminals using a single male connector to see if they're making a good connection with the regulator.
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