Compression Ignition Addict
Join Date: Oct 2011
Location: Kings River Nevada
Thanked 26 Times in 20 Posts
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Yup its just the turbo. I believe it has something to do with a cool down. I notice this cycling noise when I park and my egts are above 300degrees. And after 1-2 of these cycles my egts are below 300 degrees and it doesn't do it anymore.
Another thing I usually always try to let my egts come below 300 degrees before I turn off.
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'11 F250, 6.7 PSD, 3.55 gears, FX4 CC,SB,KR,5% tint, Hankooks w/ moto metal 959's, B&W hitch
5" mbrp strait pipe
H&S EGR block offs