1991 Chevy Truck Fuel line

Tiny
TGRIN67
  • MEMBER
  • 1991 CHEVROLET TRUCK
Engine Mechanical problem
1991 Chevy Truck V8 Four Wheel Drive Automatic

Can I use rubber hose and clamps to fix 2 leaks on the fuel line from the TBI to the fuel filter location on the frame?
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Monday, October 19th, 2009 AT 11:02 AM

7 Replies

Tiny
JDL
  • EXPERT
Because of safety issues, I wouldn't do that. Just my opinion. If something happened and there was a leak that caused a fire, I don't want that responsibility.
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Monday, October 19th, 2009 AT 11:25 AM
Tiny
TGRIN67
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I am having difficulty finding the actual replacement part outside of a dealership. The $270.00 quote they gave me for the sending and return lines is way outside what I expected to pay. I have gone to several online retailers but I can't find one that carries it.
I would rather use a new part than slap together a repair, but I am being left with little choice. Would you know of anywhere else I can look for a new part?
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Monday, October 19th, 2009 AT 11:57 AM
Tiny
JDL
  • EXPERT
Which line is leaking? Your local autostores should carry fuel lines. It may be a straight piece, with fitting and flares on it, you may have to use a tubing bender for the bends, where applicable. You copy the bends off the old line.

I see your point about finding correct part. I'm working off and on, older chevy, the part I need, the dealer says it is discontinued. Arrrrrg
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Monday, October 19th, 2009 AT 12:53 PM
Tiny
TGRIN67
  • MEMBER
The line that's leaking goes from the TBI carburator to the first fitting and travels along side of the bell housing ending at the fuel filter along the frame. I'm not sure if it's the sending or return line but they're both so rusty I want to replace/repair both. And, because they are so rusty, I didn't want to handle it very much because I want to keep it together until it comes time to fix it just in case I need to drive it.

I read something on your site saying that TBI is only running at 15 - 17psi. Shouldn't a rubber gas line hold this?

Worthy of note: both lines have a curious section of rubber half way down. It's crimped to the steel from the factory. I can only guess that this is in case of a head on collision the gas line will be able to flex to the pressure. If I'm right, then using all steel gas line will be just as dangerous.

Little history: 3 months ago I replaced the gas tank, sending unit, filler neck and all lines up to fuel filter. I couldn't find any more parts so I left it at that. Now I have no choice but finish what I started.

I appreciate your help so far in this matter.
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Monday, October 19th, 2009 AT 2:56 PM
Tiny
JDL
  • EXPERT
I wasn't sure where the leak was located. I wasn't worried about the fuel pressure. Fuel injector hose should work fine as far as coming down from the engine to steel line. The connection to the throttle body is usually a threaded connection, how you going to work around it? I wouldn't cut the steel line and then slip the hose on the smooth end? I just have concerns about going against the factory set-up. This is a public forum, I can't be responsible for a fire or somebody getting hurt. Whatever you try is your responsibility as far as safety.
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Monday, October 19th, 2009 AT 3:23 PM
Tiny
TGRIN67
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Looks like there's no cheap way to do this. I'm just going to have to bite the bullet and pay the 270 just to stay on the safe side. I guess that's really not that much to pay for peace of mind.

Thanks for being the voice of reason.
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Monday, October 19th, 2009 AT 3:41 PM
Tiny
JDL
  • EXPERT
Hey, I hear you, what ever you do, be safe.
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Monday, October 19th, 2009 AT 4:05 PM

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