# Fuel return line leaking

**URL:** <https://community.cartalk.com/t/fuel-return-line-leaking/62743>\
**Category:** Power/Fuel\
**Tags:** mustang, ford, gasoline\
**Created:** [March 18, 2011, 9:14pm UTC](https://community.cartalk.com/t/fuel-return-line-leaking/62743 "2011-03-18T21:14:38Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![AndyB1](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@AndyB1](https://community.cartalk.com/u/AndyB1)\
**Post date:** [March 18, 2011, 9:14pm UTC](https://community.cartalk.com/t/fuel-return-line-leaking/62743/1 "2011-03-18T21:14:38Z")

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I have a 1989 Ford mustang 4 cylinder. The return line tofuel tank is leaking. I am wondering if I need to treat the return line as a “high Pressure line” or if I can repair with regular rubber fuel line and hose clamps.

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**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\
**Post date:** [March 18, 2011, 9:22pm UTC](https://community.cartalk.com/t/fuel-return-line-leaking/62743/2 "2011-03-18T21:22:38Z")

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The return line is not high pressure, but I would use fuel injection hose like it is.

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**Author:** ![AndyB1](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@AndyB1](https://community.cartalk.com/u/AndyB1)\
**Post date:** [March 18, 2011, 9:30pm UTC](https://community.cartalk.com/t/fuel-return-line-leaking/62743/3 "2011-03-18T21:30:45Z")

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I have to replace a section of the steel line. I was going to use rubber ( couple inches ) to connect the new to old. Does that have to be special hose?

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [March 19, 2011, 2:25am UTC](https://community.cartalk.com/t/fuel-return-line-leaking/62743/4 "2011-03-19T02:25:35Z")

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Fuel injection-rated fuel hose is a little bit more than regular fuel hose, but I’d feel safer using the fuel injection-rated hose for this repair. The difference in cost for a foot of regular vs. fuel injection-rated is too little to sweat over. Also, I’d also put a small taper on the ends of the steel line where the repair section will go, just for added insurance. High pressure fuel is nothing to short-change yourself over.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [March 19, 2011, 2:31am UTC](https://community.cartalk.com/t/fuel-return-line-leaking/62743/5 "2011-03-19T02:31:44Z")

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You can use regular fuel line hose. Regular fuel line hose is rated at 300 PSI MAX. And I know the fuel pressure in your vehicle is nowhere near that.

Tester