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Old 10-15-2021, 12:04 PM
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Buckner21
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Has anyone experienced a hesitation when the car is in park at idle and you crack the throttle quickly and it sounds like it's sucking air? When I crack the throttle it's not a quick crisp throttle, there is a gasp of air before it revs up. Any particular reason why?
Old 10-15-2021, 12:21 PM
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beaversstonehaven
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My last two C7's did that. I think it it normal.
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Old 10-15-2021, 12:24 PM
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Dcasole
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Drive by wire is not like the old days where you had a mechanical one to one connection between the gas pedal and the throttle blades of the carburetor. When u snapped the pedal the carb instantly opened and to cover that big gulp of air the accelerator pump had to squirt a big shot of gas

The abridged and simple explanation is Drive by Wire on a C6 and a C7 has a slow throttle body opening ramp and then a much quicker rampup the farther the pedal is pushed . GM also caps the max RPM you can attain when in neutral or park

PM me if you would like a detailed explanation
Dave
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Old 10-15-2021, 12:31 PM
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kenownr
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^^^^^
Old 10-15-2021, 12:33 PM
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C7&7
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Totally normal.
Old 10-15-2021, 12:35 PM
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Buckner21
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Thanks guys, I didn't know if this was normal or something that needed looked at👍
Old 10-15-2021, 12:41 PM
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Dcasole
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Originally Posted by Buckner21
Thanks guys, I didn't know if this was normal or something that needed looked at👍
No Problem. Perfectly Normal 👍

Dave

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