LT1-LT4 Modifications 1993-97 Gen II Small Block V8

knockin out of alternator?

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Old Oct 16, 2012 | 05:52 PM
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blkZ28Kreepn's Avatar
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Default knockin out of alternator?

Question,I have a 94 camaro with a 383 stroker,140 amp alternator...earlyer late last year I replaced alternator and the knocking went away,haven't drivin the car for almost 7 months,drive it today any the knockin came back,am I just imagining things? Or do I need a stronger alternator? Or wht else could it possibly be? Car doesn't lose any power when I floor it all power is there,when I put car in reverse is when the knocing is continously,in drive its every couple seconds,in nutreal or park,its maybe once every 30 seconds..any ideas?
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Old Oct 16, 2012 | 05:58 PM
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93 LT1 Vette's Avatar
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The pump in the trans is going bad.
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Old Oct 16, 2012 | 06:08 PM
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Hmm,anyway to be certain and a ay to check it? Cause the knock sounds like its coming from up top when I pop hood...in the area of alternator,pulleys.excuse my ignorance but when it comes to internally things I can't figure out.
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Old Oct 17, 2012 | 04:25 AM
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Post a video of the problem being as specific as possible. Not very common for an alternator to "knock," especially since they are rude and always invite themselves over for dinner.
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Old Oct 17, 2012 | 09:26 PM
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Originally Posted by RamAir95TA
Post a video of the problem being as specific as possible. Not very common for an alternator to "knock," especially since they are rude and always invite themselves over for dinner.
Mine has cast Aluminum valve covers. It also had the wrong bolt in the alternator and it allowed the alternator to rattle against the valve cover. Sounded like expensive engine problems

Al 95 Z28
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