06 sierra, engine sucking noise
wren4399
12-24-2006, 04:52 AM
hello, i have a 06 sierra 2500hd and when i'm driving at speeds over 40mph and let off the gas as soon as i give it gas again it makes a sucking air sound and does not stop until i give it a good deal more. sounds like a carb. engine with the air cleaner off. does anyone else have this problem? thank you for any help.
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