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Help, Fuel Dripping From Underneath Fuel Tank

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  #1  
Old 01-31-2016, 10:35 PM
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Default Help, Fuel Dripping From Underneath Fuel Tank

A bit of background, my truck has had a minor gas vapor smell for some time, however no noticeable drip or leak. I had a feeling something may have worsened of late because the smell has been stronger lately.

I don't drive this car often as it's more to deal with winter days. I've been running it each day even if not driving since I get some starting issues when it sits cold for too many days. (Happens when it's raining, prob a distributor cap / rotor issue which ill be repacing soon)

So today it was started and sat idling for five minutes and noticed a drip from below the tank. Picture attached. It doesn't appear it's coming from where the three fuel lines connect in. But rather the other side or middle.

Anyone have any advice? Can I attempt to fix this in my driveway? Later in the day I tested it again, first by turning car on but not starting. No drip. Then I started it and drove it a mile or so and came home. Less of a drip than earlier in day but still signs of a bit of fuel.

I'm not losing much fuel by any means. Can I drive this for the next few days of Chicago gets a winter storm before fixing? Is that too risky?

Thanks!
 
Attached Thumbnails Help, Fuel Dripping From Underneath Fuel Tank-8vldrrn.jpg  
  #2  
Old 02-01-2016, 08:33 AM
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Pull the plastic shield off and see if you can locate the leak. Not a good idea to drive with a fuel leak.
 
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Old 02-01-2016, 08:38 AM
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Say it's coming from a rusted part of the tank, is there a way to patch it without taking the whole tank off?

And thanks for the tip.
 
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Old 02-01-2016, 02:14 PM
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If it's leaking due to a rusted tank, it will be an endless repair job. Just get a new tank, they're not all that expensive. The replacement tank for your 2 door is steel, (plastic was only used on some 4 door models). Pretty common part, so most auto parts stores will stock it, or can get it for you. Make sure you get a new lock ring and O ring. Might want to check the fuel pump max output pressure and leakdown before you drop the tank out. https://blazerforum.com/forum/2nd-ge...eakdown-88305/
 
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Old 02-01-2016, 02:44 PM
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Default I had a fuel leak as well

I had a fuelo leak last summer. Started the same way yours did. first the smell then a few drips then more drips. I bought a new fuel pump thinking that this was the way to go. Found out as we were getting ready to pull the tank that it was a rusted out fuel line between the top of the tank(fuel pump) and the fuel filter. About 25 feet of high pressure rubber hose and a few clamps and no more leak.

May be something simple like that
 
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Old 02-01-2016, 04:36 PM
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"Fuel injection rated" rubber line is fine for a temporary repair, but it should be replaced with steel or nylon ASAP
 
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Old 02-01-2016, 07:15 PM
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I don't think it's my fuel line. Just replaced part of it near the fuel filter, along with the fuel filter. But at least where three lines come near tank it appears dry up there.

I'll have to take the shield off as one recommended to get a better diagnosis of source of leak.

Just hoping I can do it all in driveway with no jack.
 
  #8  
Old 02-06-2016, 04:02 PM
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Alright, the leak has been located. Took the shield off, started the car and there it is. Where the 3 lines curve for their home stretch into the fuel tank / connections.

There's a bit of a squirt going up so probably a small crack on top. I've attached a picture below.

Anyone know if I can simply cover that somehow like with rubber pressurized hosing? Or will I not be able to get up there to cover it?

Is this something I should just take to mechanic to have sealed or a new line put in?

 
Attached Thumbnails Help, Fuel Dripping From Underneath Fuel Tank-khdn7dh.jpg  
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Old 02-06-2016, 04:27 PM
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Another pic, I was able to get camera as close to top as I could. You can see the decay im dealing with.

This sucks, was really hoping for a remedy without replacing full fuel line. That's an option though, just wish I could do it myself. Don't have a jack, apart from oem spare tire jack, though could maybe borrow a neighbor's.
 
Attached Thumbnails Help, Fuel Dripping From Underneath Fuel Tank-pkcnsk1.jpg  
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Old 02-06-2016, 04:40 PM
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Nope, you can't just cover it or seal it. Needs to be replaced. You did a great job repairing the line by the fuel filter! You can do this as well!!
 


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