Replaced Fuel line again

[FSJ Guy]

I replaced my fuel line running from the frame rail to the engine. Again.

Anyone else having to replace this line every 2-3 years or so???

I re-reouted it this time. I think it was a little too close to the exhaust manifold, but the entire line was rotted, not just the part near the heat.

[TPICherokee]

Are you in the rust belt? Have you tried replacing it with stainless?

[Gil]

The only thing I had to replace twice in 2 weeks was the vent line...it was too close to the manifold and kept melting. Had to re-route it away from the manifold. Fine now.

[fulsizjeep]

Ethan, I never saw rubber lines go to hell so fast as living out here. In higher humidity, they seem to last a long time. 3 years is about it for most of the rubber under the hood. I had all new hoses and belts under the hood of my GW when I moved here in 01. They were all replaced again when the 401 was installed in 04. Crap, they are probably due again though it does not get DD duties like it used to. Track that for 6 FSJs. Plus you don't know how long that spool of hose sat in a warehouse before you bought a few feet off of it.

[tgreese]

May be true that the altitude/dryness rots the rubber lines - I've always lived close to sea level. I know that there are grades of rubber fuel hose, and that the bulk line you get from your typical parts store is the cheapest grade. You might try using FI hose or PS return hose in place of plain low-pressure fuel line. Wipe with Armorall at each oil change? Ask about higher quality fuel hose at your favorite parts store?

I know that the little hoses at the fuel filter are a prime cause of under-hood fires. Most people don't even know they are there - much less the hose from the frame to the pump.