My car—which has over 150,000 miles at this point—no longer accelerates very well, and my mechanic is now saying I need to replace the valves. What’s the average car valve replacement cost?

So, here’s the thing. I got a great deal on a used car my neighbor was selling, but now I realize the passenger’s side door handle needs to be replaced. It kind of annoys me that he didn’t say anything about it. What’s the average car door handle replacement cost?

My car’s power door locks aren’t working correctly, and now my mechanic is saying the actuator needs to be replaced. What’s the average car actuator replacement cost?