Quote:
Originally Posted by ReFLeX135
Yeah in my original video I had the v4/v8 screen on. It seems to happen when it switches. This would be the first two screeches in the newest video, where it seems no shifting occurs. Manual mode shifting I did twice, so that wouldn't be the AFM for sure. I just really hope they don't tell me it's normal..
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For what it's worth I don't hear anything or feel anything when transitioning from v4 to v8 mode. The only way I know is by looking at the v4/v8 mode on the dash.
If it is the valves making the noise you can test it. There is a separate fuse that controls the AFM valves. You can pull it and drive. The car will still switch to AFM mode but the valves obviously won't close. However, be aware that when you are in v4 mode with the AFM valves closed the exhaust will sound bad, which is why we need them. Furthermore, unlike the fuse for the rear NPP valves, pulling the AFM NPP fuse will cause a CEL.
Has the dealer performed the TSB that calls for them to spray dry slide lubricant into the valve assemblies?