Audi Q7 car shaking and not accelerating after valve cover replacement on Audi Q7

Some Audi Q7 owners report experiencing shaking and lack of acceleration after a valve cover replacement, which may be attributed to several factors. These include misfire codes on multiple cylinders that can lead to rough idling and poor acceleration. Additionally, some owners have noted persistent vacuum noise, suggesting potential issues with the vacuum system that could affect engine performance. Improper replacement of the valve cover gasket has also been reported to cause oil leaks, further impacting engine performance and causing shaking. Furthermore, warped plastic covers or bad gaskets can lead to leaks and performance problems. To resolve these issues, owners are advised to check for misfire codes, inspect the vacuum system, ensure proper gasket installation, and verify the condition of the valve covers. If problems continue, consulting a professional mechanic or Audi dealership is recommended for effective diagnosis and resolution.