DNASTY01 Posted October 28, 2009 Report Share Posted October 28, 2009 I had the alternator installed a little under a month ago. The first time I drove my blazer with the alternator on it made a noise when I went above 2500 rpm's and it still does it now. If it is not above the 2500 rpms then it doesn't The noise sounds something like a supercharger and a high powered fan running at high speeds. It will only happen when I accelerate over 2500 rpm's or when i'm trying to pass someone up and push on the gas. Is this a problem or does this alternator has a fan built it to keep it cool cause it is pushing out alot of amps. I just want to make sure it is not hurting my vehicle. Thanks, Dennis Quote YEAAAAA!!!!!!!!! Let's get em 4 JL Audio 12w6's (wall) 4 Pioneer 6x9's (built into the wall) 4 Memphis 6.5's components (one set in kick panel and one set in the door) Orion 2400 amp (old long black amp) Orion 800.4 amp Mechman 250 amp rhino series alternator 0 guage everywhere Kinetik 2000 for bass Kinetik 800 for highs Memphis Digital Processor 147.1 db @60 hertz Link to comment Share on other sites More sharing options...
J00bles Posted October 28, 2009 Report Share Posted October 28, 2009 it should be normal. most high output alternators make a supercharger noise. the noise will be significantly louder IF it does have a strong fan attached. Quote 8 DC Level 4 M2 15s2 DC Audio 5ks26^2 clamshell tuned to 30hz9 Kinetik 1400sMechman externally reg'd 340 S seriesin a 99 Jeep Cherokee Click to see J00bles' Youtube Channel Link to comment Share on other sites More sharing options...
clouduz Posted October 28, 2009 Report Share Posted October 28, 2009 i have that noise too works fine, just the sound its producing current Quote Link to comment Share on other sites More sharing options...
MECHMAN Posted October 29, 2009 Report Share Posted October 29, 2009 i have that noise too works fine, just the sound its producing current Correct. We also use high-efficientcy fans for better cooling. They move more air, and are subsequently louder. Quote 1-888-MECHMAN www.Mechman.com [email protected] Link to comment Share on other sites More sharing options...
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