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11-15-2011 #1
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- Oct 2009
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- New Derry, PA
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2012 Cad CTS 3.6 engine NOISE...any real experience?
Just wondering about something... Last night I test drove a 2012 Cadillac CTS coupe with the 3.6 direct injected V6. Anytime I opened the throttle even moderately, the thing sounded like it was detonating itself to death. It literally sounded like someone was shaking a coffee can full of rocks under the hood. Car had 12 miles on it and ran well otherwise, so I doubt it was already broken...
I know the gasoline direct injection engines are sort of 1/2 diesel, 1/2 gas in the way they operate, but I was under the impression the GDI engines still had "normal" combustion events. A fellow instructor suggested that maybe the dealership didn't put premium gas in it, but I'd think this noise would scare off anyone that drove the thing; so that would be a dumb way to save a few bucks...
Anyone have any experience with these engines, and / or the cause of that noise?
Ray Kaufman - Wyotech Chassis Fab and High Performance Instructor. Words of Wisdom from an old master... at Asylum Custom Interiors website
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