Question about 2000 GMC Jimmy

3 Answers

Finding fuel leak options with very little fuel in tank, leaks with addition of $5 worth of fuel?

Why when adding fuel it leaks with an almost empty fuel tank have to add $5 at a time. what could leak at that low fuel level?

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3 Answers

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  • Master
  • 761 Answers

Answers 1 & 2 pretty much nailed it, you have a hole in the tank or well that's pretty much it. There are no outside lines that close to a near empty tank and your fuel pump is either midway on the side ot mounted into the top, so I'd place my money on either a hole under the tank strap or a seam on the tank gave way.

Posted on Dec 13, 2014

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  • GMC Master
  • 1,615 Answers

Hole in tank. Most likely a hole right in the bottom. If you can't find it right away, it could be under the straps that hold it on. Can you see anything wet near the bottom of the tank? Does it leak while its running, not running, or both?

Posted on Nov 22, 2014

Surely you can see the fuel on the outside of the
fuel tank or a rusted fuel tube under it

You should be able to find that issue in 10 minutes
IF you get under it

That is only 2 gallons added at a time

Wouldn't you think the fuel tank is the issue,if
it leaks without the motor running

Now you also know we can not guess from here

Posted on Nov 22, 2014

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Posted on Jan 02, 2017

MikenAsh
  • 32 Answers

SOURCE: gas gauge

The float that moves the gas hand is possibly stuck in the tank. If there's isn't an access hole in the rear of the vehicle you'll have to drop the tank. Unless it becomes free on it's own. Hope this is helpful. Please rate. Thanks

Posted on Sep 28, 2008

  • 1779 Answers

SOURCE: Fuel Leak

VERY carefully. This is a dangerous job due to the explosive nature of gasoline. I would recommend doing it outside on a breezy day (to dissipate fumes that are highly explosive). I would also recommend running the tank down low before. You can purchase rubber fuel line to replace it. Slide the rubber line over the metal line where it's solid, clamp it, and do the same for the other end. Be Careful!!! Use plastic zip ties to support the hose and prevent it from hanging down.

Posted on Mar 18, 2009

  • 462 Answers

SOURCE: fuel gauge needle fluxuates or sits on empty

The fuel level sender is bad and will have to be replaced.

Posted on Sep 13, 2009

  • 4088 Answers

SOURCE: gas gauge reads empty and low fuel with 10 to 20 gallons of fuel

Other than replacing the sensor which is part of the fuel pump assembly inside the tank, you may have loose or corroded connections in the wiring just outside of the fuel pump/sensor position on the tank. These connections are exposed to water/salt conditions from road spray. May the force be with you!

Posted on Jan 30, 2010

toomanyparts
  • 142 Answers

SOURCE: my low coolant light came on 2 weeks ago and i

check the intake gasket if it is leaking make sure the water pump is not leaking, check the heater core coupler sometimes those get brittle and crack.

Posted on Dec 02, 2010

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