A fuel system service is a part of preventative maintenance. There are several problems that can cause your fuel system to not function the way that it should. This includes things such as buildup inside of the components and faulty sensors. Rough starts, slow acceleration, and lost power when towing or going up a hill are some of the signs that you need to look out for.
There are several things that are involved in the fuel system service. The injectors will be cleaned. This will remove any debris that has built up inside the vehicle. They will also remove the varnish from the fuel body. Additionally, they will change the fuel filter and add a fuel additive. The purpose of the fuel additive is to remove moisture from the inside of the system. It can also make the fuel system cleaning last longer.