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solismaris's avatar
solismaris
Explorer
Jun 28, 2019

I asked for trouble and I got it.

So I asked for trouble and I got it. I asked my mechanic to do a comprehensive safety and breakdown check on my 2004 GMC 2500HD. Because breakdowns on vacation are no fun - we've had 2 already this year - and stressful for me and the wife, and I wanted to find problems before they happen. Bad idea? Maybe; maybe not.

Not suprisingly he found lots of problems. Brake issues front and rear, badly rusted control arms, etc. Most of them I understand and accept and will have them done over the next few months, one at a time. But the big one is this:

He says the fuel lines are badly rusted and strongly recommends replacing them, and that job includes new fuel pump and tank straps. It is an 8 hour job and estimated at $1800 parts and labor!

First of all, that's a shockingly large amount of money! Does this seem out of line? He says the entire system is one part, basically, from fuel tank to engine, and is $1000 just for the part!

Second: Is it appropriate to change this just because it is badly rusted? Would there be warning signs before impending failure (like a slight odor of gasoline)? Or would my only warning be the giant fireball as the line ruptures and sprays gas all over the exhaust and sets us on fire? What would you do? (All opinions welcome!)

64 Replies

  • Like all the rest of us (and our rides), your's is getting older and is going to have parts that you can replace now before breakdown or later after breakdown. The choice is yours. In the case of the fuel lines and tank straps, you might get lucky and notice the smell of gas in time. But then again, the first sign of trouble might be your seat getting really hot and flames licking up the windows.

    While I agree that $1800 sounds like a high price for fuel lines and tank straps, and you might get a second opinion on that, but I'd get 'em replaced before you go on vacation and ole Billy-Bob has the chance to soak you for twice that out in the middle of nowhere.
  • newman fulltimer wrote:
    Auto zone sales the line for 590.00

    Thanks but doing it myself is way beyond my skill level. If it's $590 at auto zone then $1000 at the shop is not that crazy.
  • I would not chance it one bit, with rusty fuel lines. Due to the small diameter of those lines, any failure would likely be sudden in nature.