Fuel line options.

[SmartMax1]

A friend of mine is suggesting to use nylon tubing instead of hardline when replacing the entire fuel supply lines from tank to injector rail. Any thoughts out there. Are vehicles being manufactured today with something besides hardline?

 

[Curious Hound]

As you look at your fuel line, i believe you will find that some of it, down along the frame rail and at the tank is already some type of plastic material. Up in the engine bay, and near exhaust lines or things that vibrate, you will want hard line and/or hoses with steel braid for protection.

 

[SmartMax1]

Thanks for help. I'm pulling the body off so I can get a good look at the whole shebang. I may not have to touch much but just in case ya know. May be a while to get out on the road but I do enjoy the restore process.

 

[RonD]

Yes, most if not all fuel lines are nylon now, in engine bay they are often braided but still nylon
Rangers used 5/16" fuel lines

Dorman sell repair kits for nylon lines

Best method for nylon is to use a heat gun to soften the nylon then install the connector and let it cool, it will make a tight seal no clamp needed

 

[SmartMax1]

Yes, most if not all fuel lines are nylon now, in engine bay they are often braided but still nylon
Rangers used 5/16" fuel lines

Dorman sell repair kits for nylon lines

Best method for nylon is to use a heat gun to soften the nylon then install the connector and let it cool, it will make a tight seal no clamp needed

And this applies to a pressurized system correct? Things are looking better every day. I got the bolts out of the bed and now disconnecting the lights etc. At some point I need to address the fuel filler . The body is not the original. This fiberglass stepwise came off.a 2001 I think and the fuel filler isn't quite adequate. Can be fueled but difficult to access. But that's for later. Just want to get it running first.

 

[RonD]

Yes, since fuel injection was first used in Rangers back in the mid-1980's the fuel lines were nylon, 30psi(pre-1998) to 65psi(post-1997)

2001 should have fuel pressure regulator(FPR) on the fuel pump assemble in the gas tank
And a 3 port fuel filter
The fuel pump sends out fuel on one line to fuel filter
Then another line comes back to the tank from the filter and goes to the FPR in the tank, the FPR is what mantains the 55-65psi pressure in the system, assuming no leaks from filter to injectors

Image here of assembly: https://i5.walmartimages.com/asr/b6...df471_1.6fff4c58fb41f772bceff5af99d6422e.jpeg
The round unit about half way down is the FPR

 

[SmartMax1]

Good information here. I'm being made aware of things I never knew about these Rangers. It's the only truck I ever wanted. 6cyl. Extended cab 4x4. No 4 bangers for me. I have a 2006 Chevy Trailblazer coming in the fall. 4x4. 152 ,000 . Truck is solid and a great deal at $1800. Worth more like $3000.00 but my best bud is gonna let me have it. Brand new alternator Battery and tires as well. Body has minimal rust where it always shows up. Bottom of the doors..Same.on rear door but if caught now it would not be too late. Being single a man needs 2 trucks. Winter in Maine demands traction.

 

[mikkelstuff]

For what it's worth, I absolutely hate that nylon fuel line. If it weren't for the built-in line fittings at the fuel tank, I'd replace it all with hose.

 

[SmartMax1]

I just today pulled the bed so now I can start at the tank and move forward. Fuel pump is dropped now for easier access to connects.

 

[SmartMax1]

Fuel Pump on a 94 is along the frame.and not in the tank? I'm getting conflicting information on this subject.

 

[franklin2]

For what it's worth, I absolutely hate that nylon fuel line. If it weren't for the built-in line fittings at the fuel tank, I'd replace it all with hose.

When I can't deal with it, I replace it with steel line and short pieces of hose at the tank and the engine. That bump that holds the original lines makes a fine barb to seal the rubber hose.

 

[SmartMax1]

If the fuel pump on a 94 is located in the fuel tank then what am I looking at further forward along the frame on the drivers side. Lines are attached on both ends. Hmmmm..

 

[RonD]

No, 1989 and up Rangers all have single fuel pump in the gas tank, fuel filter is in the frame rail

1988 and earlier FUEL INJECTED Rangers had a lift pump(7psi) in the tank and then a high pressure pump(40psi) in the frame rail behind the fuel filter, so 2 electric fuel pumps

 

[SmartMax1]

Ok that's what I thought. I pulled the bed and now I need to chase the supply line to that exterior pump along the frame and disconnnect so I can run new line to the injection rail. Ugh! But thank you for the help with this one. .

 

[RonD]

???

1994 just has the one pump IN the gas tank