Factors that can increase the time include:
* Rust or seized bolts: If bolts are rusted or seized, removing them can take significantly longer. Penetrating oil and careful application of force are essential.
* Previous repairs: If the valve cover has been previously worked on, it might be more challenging to remove.
* Lack of experience: A novice mechanic will likely take longer than someone experienced with this type of repair.
* Accessibility: The engine bay on the Impala may not offer the easiest access.
If you're unsure about any step, it's always best to consult a repair manual specific to your vehicle's year and engine. These manuals provide detailed instructions and diagrams. Rushing the job can lead to further damage.
