Intermittent issue with acceleration

[Jcw97]

Hello,

I own a 2015 SHO with 62k miles. Recently, I’ve noticed drastically reduced acceleration when applying full throttle. It is most noticeable at highway speeds above 60 mph. It happens during about 80% of driving sessions, but if it happens it will happen the whole time I’m driving. Also, I’ve noticed that one of the tires will squeal for a brief second when accelerating and when I reach about 60 mph. Wondering if anyone else has encountered this issue?

Thanks.

 

[SHOdded]

Either power is being cut due to lost traction, or the wastegate(s) are not holding pressure. Rarely, the throttle body motor has developed a failure issue. If you feel stuttering, it could be knock sensor wiring.

In any case, start by checking the pcm for codes.

 

[krewat]

Did I read that right? You have a tire squealing at 60MPH?

 

[Jcw97]

Did I read that right? You have a tire squealing at 60MPH?

Yes