this is a 5.3L from an 04 buick rainer. what are the connectors called & where can i find them cheaply. also, does anyone know if there's a built-in pressure regulator in here. there are 2 fuel lines, i assume is a return.

 

They're quick disconnect fittings and I'm not sure where you get factory style ones, but there are a few ways to adapt other lines to the tubes. One is an adapter made by a few manufacturers (pure choice, russell maybe?) that adapt the lines to AN fittings. The fuel pressure regulator is built into the system and is the thing in your picture with the nipple on it just to the left of the fittings in your picture.

 

You can also get your Tubing or A/C shop to braze on AN fitting to the Fuel rail or the Fuel Sender tubes. I costed me $10.00 for labor and fitting to do my Fuel Rail.

 

Advanced auto parts sells Dorman brand fuel line repair parts . They use the nylon or plastic tubing that you warm and then place on the fitting and it shrinks to seal on the fitting. Or you can use fuel injection hose and hose clamps and clamp onto the fitting.

 

thanks for replies
2 more questions

if these fittings are quick disconnects, how do i quickly disconnect them. is there a tool needed

i'm putting a fuel regulator next to my tank to avoid running another fuel line. is there any issue with closing off the return line @ the engine

 

You can get a cheap tool for disconnecting them from any auto parts store.

 

In order to use a single fuel line you will have to change the fuel rail to an
F body one, which has only one connector.

 

will pinching it off or feeding it back to itself cause problems?

 

go to napa and get this 730-4927 3/8 quick disconnect fitting. check link for pic

https://ls1tech.com/forums/showthrea...ight=fuel+rail

 

Pinching it off usually causes a bigger mess

As for feeding it back to itself, that's never a good idea.











Sorry...I couldn't resist.

 

These are compression fittings found at a local hose store, 3/8 for fuel feed and 5/16 for return connected to female NPT and AN4 on the other side. Steel braid all the way back from that. Does not leak and very inexpensive.
Thanks

 

what type of braided line is that?

 

Aircraft type rated at 3000psi. Aircraft used An- fittings but the standard now is MS- fittings for aircraft. A lot of these lines are some where thrown away. Just got to find them.
Thanks