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Alternator/regulator issue?
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05-22-2023, 12:28 AM | #1 |
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Alternator/regulator issue?
I was driving on the highway yesterday when all of a sudden a bunch of lights lit up on the dash (temperature, ABS, whole bunch of random ones), speedometer stopped working, wipers turned on, trans stuck in 2nd, car began to lose power, etc. Pulled over and towed it home.
I did some research and it seems like an alternator problem, specifically, the regulator. Seems like an easy enough job and a cheap part, would much rather replace than the whole alternator. However, I went to check the car today and the battery was dead. So, I think my process would be to remove the battery, take it to get it tested and charged, swap out the regulator, and put the battery back in? Possibly get a new battery depending on how it comes back? Seems like the regulator is a common fail point. Does this sound like a reasonable thought process? |
05-24-2023, 02:13 PM | #2 |
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Battery was toast. Seems like it boiled from overcharging as there was battery acid everywhere in the compartment. cleaned it all out and put the new battery in there, got the new regulator in and car is working just fine. Gonna register the new battery today.
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05-25-2023, 05:23 PM | #3 |
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Hey im having the same issue, I lost all power and engine light came on while driving. only happened to me when I floored the car.
Was your fix just the voltage regulator? or alternator also? |
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05-25-2023, 08:51 PM | #4 |
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Drives: 2006 BMW 330i MT
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Check for oil leaking from the oil filter housing gasket... it can foul an alternator.
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05-26-2023, 01:17 AM | #5 |
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Had a fouled alternator (from an improper oil filter gasket placement spray oil everywhere) causing the christmas tree (for 2 seconds) while driving, and intermittent low voltage/alternator not charging issues.
Sprayed an entire can of CRC Lectra-Motive on the alternator while cold and letting it dry overnight cleared everything up. No more issues after that and been good for 3 years now since that happened. Now happily on year 15 of the OEM alternator+regulator. |
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