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Old Sep 11, 2022 | 02:09 PM
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I started getting the shudder when i am driving and get on it hard enough that it wants to downshift, this started a couple of weeks ago so I went and had the SB19 done where they change the transmission fluid and filter flkush done. I also went ahead and had the rearend oil replaced just because. when all of this started I also get a stabilitrac warning light and the service rear axle message at the same time not always with the messages but often enough. It sets an engine light on I am going to get an OBDII code reader so I know the codes. This is all on a 2016 Z07 and the Battery is about 2 yrs old at the oldest. Has anyone else seen all of these things together also after doing the tgransmission flush the shudder seems better but it still does it.

ADDING CODES I SEE....P015B, P015C, P015D which all look like 02 Sensor errors and then P0300 Engine misfire but it is just a random it doesnt break it down to a cylinder
Thanks for any info
Jon

Last edited by jon c; Sep 11, 2022 at 05:12 PM.
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Old Sep 11, 2022 | 02:48 PM
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Originally Posted by jon c
on a 2016 Z07 and the Battery is about 2 yrs old at the oldest.
Thanks for any info
Jon
Number one with these cars is first to do thing is.. Replace battery..... just do it!
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Old Sep 11, 2022 | 06:09 PM
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Check all of your spark plug wires, both ends. Many of the codes that you are seeing can be traced back to loose spark plug wires.
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Old Sep 11, 2022 | 06:16 PM
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Highly unlikely that it's the battery.
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Old Sep 11, 2022 | 07:08 PM
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Originally Posted by TxLefty
Check all of your spark plug wires, both ends. Many of the codes that you are seeing can be traced back to loose spark plug wires.
this is where I am starting at now I will update the group thanks for all the input.
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Old Sep 18, 2022 | 08:50 PM
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Originally Posted by jon c
I started getting the shudder when i am driving and get on it hard enough that it wants to downshift, this started a couple of weeks ago so I went and had the SB19 done where they change the transmission fluid and filter flkush done. I also went ahead and had the rearend oil replaced just because. when all of this started I also get a stabilitrac warning light and the service rear axle message at the same time not always with the messages but often enough. It sets an engine light on I am going to get an OBDII code reader so I know the codes. This is all on a 2016 Z07 and the Battery is about 2 yrs old at the oldest. Has anyone else seen all of these things together also after doing the tgransmission flush the shudder seems better but it still does it.

ADDING CODES I SEE....P015B, P015C, P015D which all look like 02 Sensor errors and then P0300 Engine misfire but it is just a random it doesnt break it down to a cylinder
Thanks for any info
Jon
UPDATE!!!!!
as some of you mentioned to check the plugs and wires I replaced the plugs and wires on the car and the problem is corrected now, i had 2 plugs that were lose enough that aI was able to unscrew them and remove them with the plug wire I could probably have just tightened the 2 lose plugs but since I was in there anyway I replaced them and all is good.
Thanks for all the input.
Jon
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Old Sep 18, 2022 | 10:49 PM
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Glad to hear that the fix was a simply thing and did not involve more serious work on the car.
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