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Old Mar 24, 2024 | 10:14 PM
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Default sluggish acceleration

When flooring the accelerator on my 2018 Grand Sport with automatic transmission, it will accelerate, then bog down momentarily before regaining RPM's. I recently had the transmission flushed and serviced. The car has 44000 miles. TIA
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Old Mar 25, 2024 | 04:09 PM
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Are you sure that traction control isn't kicking in?
Are you running all-season and/or worn tires?
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Old Mar 25, 2024 | 04:12 PM
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Install a throttle controller.
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Old Mar 25, 2024 | 09:43 PM
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Originally Posted by AZRenegade
Install a throttle controller.
Our 2017 Z51 is totally stock, and does not have the bog that OP mentioned.
None of the other C7 owners in our club complain about bog after accelerating.
I'd look first at car2fast's ideas- momentary loss of traction.
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Old Mar 25, 2024 | 09:52 PM
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Originally Posted by AZRenegade
Install a throttle controller.


Originally Posted by Gearhead Jim
Our 2017 Z51 is totally stock, and does not have the bog that OP mentioned.
None of the other C7 owners in our club complain about bog after accelerating.
I'd look first at car2fast's ideas- momentary loss of traction.

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Old Mar 25, 2024 | 10:08 PM
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Originally Posted by car2fast4you
Are you sure that traction control isn't kicking in?
Are you running all-season and/or worn tires?
This could be a cause.
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Old Mar 26, 2024 | 09:11 AM
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Could be electrical or fuel injectors. Needs a professional diagnosis.
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Old Mar 26, 2024 | 11:01 AM
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I have owned the car for 2 years, always running with traction control on. Only recently have I experienced this type of bogging down of RPM's. Tires are all season and good tread. I will run it without the traction control on and see how she runs. Thank you for your reply. I will post again when I find out more.
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Old Mar 26, 2024 | 11:02 AM
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TY. I was thinking fuel injectors also. She will be going in for diagnosis ASAP.
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Old Mar 26, 2024 | 01:04 PM
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I take it this is a new phenomenon?
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Old Mar 28, 2024 | 10:45 AM
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Correct
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