What is this?
This is the inspection of the metal, plastic or rubber hoses that carry fuel from the gas tank to the engine. There is also a return line that takes unused fuel back to the gas tank.

Should I do this service when it’s recommended?
Definitely.

Why do I have to do this?
You need to check the fuel hoses and connections because they contain gas that’s under high pressure — and they are susceptible to damage. Underneath the car, the hoses can be damaged by errant rocks, debris and flying road kill. Inside the engine compartment, the hoses are subjected to intense heat and vibration.

What happens if I don’t do this?
If you don’t have your fuel hoses inspected on a regular basis, they could be damaged and you wouldn’t know it. They could then burst suddenly, spraying fuel all over the engine. The result could be your car stalling on the side of the road or it catching on fire.

Can I do this myself?
It depends on where you rank on the Car Talk do-it-yourself scale:

___ There are two kinds of screwdrivers?

___ I’ve successfully hung pictures around the house.

___ I’ve changed my own oil.

_X_ I’ve fixed things on my car that involve removing more than five bolts.

___ I’ve built a working nuclear reactor out of wood.

Is there any maintenance required between intervals?
We suggest that you at least familiarize yourself with the fuel hoses that are easily visible under the hood. If the stuff you can see is in bad shape, then chances are the rest of the line isn’t doing too well, either. Your mechanic can point out the fuel lines to you, and you can have a look at them when you have the hood open.

Car Talk Tip: If your car is more than 10 years old, consider checking the fuel hoses and fuel connections more often than your manufacturer recommends. Here’s why: Because of body rust, the fuel lines underneath the car will become increasingly vulnerable as time goes by.