Engine/Transmission (1994 - 1998) Help With Easy Fuel line Question??

[Northrunner]

Recently my truck developed a fuel leak. I could not tell where it was leaking from and did not have the time to spend with it so I decided to take it to my Dodge dealer. I had learned from this site that it may be just the rubber fuel lines. I figured even if it turned out to be something else, while they were working in that area it would be smart to replace those stock rubber hoses with "Larry B's Fuel Hose Kit". Well it did turn out to be a leak in the stock hose, but they called me to say that my truck has metal lines, not rubber, except for only one short 7 inch section. Seems like everything I've read indicated that the lines from the fuel tank were metal and then connected to rubber hoses for the last 2 feet to the motor? I'm assuming the mechanic is correct, he's got it up on the lift and he owns a truck just like mine.



I'm just surprised. Probably didn't need to buy the $30. 00 hose kit



Is this the way all the 1998 12 valves are? Mine was built in Canada...



Thanks...

 

[ttbird]

Just replaced metal fuel lines on my 95. Metal lines, both feed and return, run from tank along driver side frame rail on the inside and up to the firewall. There, they change to rubber then back to metal,except for one rubber hose that runs along the right side of the valve cover hidden down in that crack running back towards firewall. Climb up with a flashlight and you will see it. There are also several rubber line by fuel heater and fuel pump.

 

[Missouri Mule]

Are you the first owner?

Should have rubber lines where ttbird stated. But I haven't seen a 98, I have seen a 96 and 97 they have the rubber lines. ( The rubber lines start at the trans bell housing or frame near trans. )

 

[GSchlegel]

I think the idea is to replace the combo metal/rubber lines with all rubber since some have reported the metal lines have rusted through.



I probably should replace all my lines. Replaced the rubber lines about 6 years ago, so I'm about due again.



Gene

 

[BGuilty]

damn rubber lines... i couldnt find mine and has a guy from precision diesel find and replace it for me... it was in hte shop for an inspection might as well... . now it runs like a better piece of dog ***** with out the corn now

 

[CWeaver]

Anyone know about Biodiesel safe fuel lines? I typically run between 5%-20% Biodiesel if I buy at the pump here in IL. I also have run up to 95% biodiesel in the warm summer months. No leaks yet, but I'd like to change my rubber lines out before it's a issue.



My old Mercedes developed a large crack in a line while mu wife was driving It & dumped about 10-13 gallons of fuel last week !



I know Geno's has some Biodiesel line but I haven't called yet to see what it is & what it's rated for. I'll do so. So far best I've found is Goodyear fuel injection lines or Marine fire/alcohol rated line...



Anyone running high % biodiesel?

 

[KYOUNG]

My 98. 4 has plastic lines with quick connects on it, I would guess that the 24 valves do also... ...

 

[CWeaver]

Genos carries the Vulcan / Parker fuel lines.

Here's what Brandon at Geno's had to say:

According to our distributor the fuel line we carry is B100 compatible. It is made by Parker.

Here are the details from Parker:

Parker SuperFlex fuel line is bio fuel compatible and tested up to and including B100.

SuperFlex features a Nylon liner and is California Air Resourced Board (CARB) compliant.



Approved for biodiesel fuels that meet ASTM D 6751 requirements per UL guidelines for Biodiesel compatibility.

4:1 Design factor

I hope this helps.



I'll try these lines next time & let everyone know what I think / if I have issues... . Now to locate the lines & figure out how much I need to buy??? Brandon said he thought he remembered using the 3/8 size on his 97. .....

 

[Kawi600]

if this is a rustbelt truck, Id swap the metal lines to diesel hose (marine diesel USCG approved is tough as nails) and swap out the pickup bung in the fuel tank sender unit with a vulcan draw straw. The fittings on top tend to rot out.