Mazda b3000 2wd 6 cylinder 2002 190K miles

There are two fuel lines that go into the filter--I replaced the filter, believe I got them on correctly (short to long pipe, long to short pipe)--how important is this? One keeps blowing off, is this common for an older truck--can I hose clamp them on? thanks!

 

No they're on correctly--smaller tube is connecting snapping on but pops off when I start the engine..no hos clamp will work, replace something on the connection?

 

Connection may have been damaged when removed

There should be 3 connections not just 2, on a 2002 fuel filter
But 2 from the gas tank

The larger connector is 3/8" and the smaller 5/16"
All the fuel lines are 5/16" nylon
You can buy repair kits and install new connectors, Dorman is one brand

You need to heat the nylon line, soak end in HOT water, heat gun works but BE CAREFUL it is a FUEL LINE
Line will get softer and new end can be pressed inside it, when it cools it will make a good seal

Or hit a wrecking yard and get the one line you need complete

Here is an article on the different fuel line connections used: https://www.therangerstation.com/tec...rd-fuel-lines/