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Old 10-21-2005, 12:45 PM   #1
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Default Failing alternator?

I started my '93 SSE with 137,000 miles this morning and I noticed the dash and headlights were much brigher than normal and my ABS and air bag warning lights were on (which never happens). When I pushed on the accelerator, it seemed like something was holding back the engine. Does this sound like my alternator could be going?

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Old 10-21-2005, 12:54 PM   #2
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How many volts did the guage show? 14 is normal. The alternator wouldn't be able to hold the engine back unless the bearings were out, and you'd hear it.
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Old 10-21-2005, 01:20 PM   #3
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I didn't think to look at the volts. What would it sound like if the bearings went?
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Old 10-21-2005, 02:12 PM   #4
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Kinda like an injured cat.....

Seriously, you'd hear a grinding and/or squaling noise from the back end of the alt.
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Old 10-21-2005, 02:36 PM   #5
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I didn't hear anything like that. The engine just sounded like it was working very hard and that something was holding it back.
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Old 10-23-2005, 01:18 PM   #6
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When I went to start it after I got home, the battery was dead so my husband jumped it and it started. We put it on the charger overnight and it only took a 75% charge. We're thinking it'* the battery and/or the alternator. However, the battery is only 5 months old. What do you think?
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Old 10-23-2005, 01:32 PM   #7
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if your going to replace the Alternator, replace the battery along with it. USUALLY when a alt goes, it take the battery out with it... killing it a few months later... it seems to be a concensus to replace them both at the same time to avoid headache down the road.
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Old 10-23-2005, 04:08 PM   #8
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Quote:
Originally Posted by shortstuf212559
if your going to replace the Alternator, replace the battery along with it. USUALLY when a alt goes, it take the battery out with it... killing it a few months later... it seems to be a concensus to replace them both at the same time to avoid headache down the road.
Yes this is a very good idea. It becomes a vicious cycle....in our dozer the alt went bad so we replaced it, then the batteries failed a month later so we replaced them, but the bad batteries took out the alt so we replaced it again. Never doing that again...
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