Thread: Bad lifter?
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      09-13-2012, 10:03 PM   #24
MilehighM3
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Drives: E90 M3
Join Date: May 2011
Location: Colorado Springs

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Exactly James. I've done 4 N52 alternators in the last 2 weeks and spaced that noise as a possibility until I revisited the thread. Sounds a little quieter, but same tone. I haven't seen an N54 fail yet, but it has to be a matter of time I'm sure.