Hello,

I have a former att fleet 2010 e250 van that was converted to CNG. The check engine light is on due to error code P0305-CYLINDER 5 misfire. I took it to Ford delearshio and they ran a diagnostic on it and stated it was due to a fuel injector fault. They recommended I change all fuel injectors and the fuel filter which they estimated would cost $3500. I asked them to just replace the fuel injector for cylinder 5 which was causing the issue but they refuse. My questions are -

1. why can't they just replace the damaged fuel injector?

2. Does the price quote for $3500 sound reasonable for fuel injector replacement?

thanks