I was just thinking about my fuel line service and wanted to ask about something I found odd. Prior to the service I did not let the car burn off excess fuel in the lines, but when I undid the lines there was almost no pressure in them whit no spray when I loosed the fittings. The car sat for about 10 days prior to this service.

Would you expect to see pressure driven spray when undoing the lines withou doing a fuel pump furs pull to burn off some gas?

Dave

 

I don't think there would be mutch if not any pressure after 10 days.

 

I agree, there is a spec in the WSM about how long it should hold pressure but I think it's measured in hours, not days. If the pressure drops immediately there's a check valve that's probably bad.

Once it's bled back down into the fuel tank you'd only have residual dripping from places where it came to rest.

 

My pressure goes to 0 on my gauge in about three days

 

The pressure drop is measured in minutes from engine shutdown.

If the car is in a cool garage its my experience that all pressure will be gone within a few hours. If the car is outside or the garage door is open and the sun is on the rear end fuel pressure will rise. Even though pressure should be minimum be prepared to catch residual fuel in the lines.