Hey People

After installation of Headers/High Flow Cat/ Borla Catback

And a Protuner Retune.

My Auto 8 has been shuddering with a metallic pitch tone as well.

This occurs when moving from neutral to reverse or drive, last for about 1 second then idols fine at 900 rpm.

This also sometime occurs, but rarely when stopping at a red light, as soon as the car fully stops it shudders then goes back to normal idle.

What do you people think the problem is?

Engine Mounts?

 

Yes sounds like motor mounts....have them replaced

 

thought so, guess that can be done with my sc install, no rush