Question about 1999 Chevrolet 3500

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Water in gas tank. how do i drop two tanks on 1999 chevy 3500 steak truck

I just purchased a 1999 chevy 3500 steak truck with 90K miles and no rust to cab. The truck had been sitting for approximately two years. I drove it home and it would not start again. Discovered it has water in the gas tank. How do I drop the gas tanks to remove water and I plan on replacing the fuel pump while the tank is down?

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  • Chevrolet Master
  • 6,674 Answers

Normally it's just a matter of removing filler tubes from side, disconnect fuel lines & electrical connections at fuel pump/sender, undo the 2 straps, & lower it down.

Posted on May 15, 2009

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Posted on Jan 02, 2017

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How to install gasoline filler neck 1998 chevy silverado


First disconnect your battery, drain your fuel tank, then support your fuel tank with a jack, then take the 3 bolts out on your filler neck by your gas door, then take the gas tank plastic shield off, then loosen the gas tank straps, then make sure you drop the tank a little to be able to reach up and loosen the hoses on the fill neck and then remove the hoses. Then install the new fill neck.
Then reverse everything to put back together.
But since you have everything opened up, take the time to look over everything before you put it back together, replace anything badly rusted or broken, no sense to have to do this all again.
I would say if doing this on the ground with jacks and jack stands, with all hand tools, this should take you any where from.an hour or two, depending how badly rusted everything is, it's best to.spray all rusted nuts and bolts down the night before a couple of times. I use PB BLAST, which for me has worked great over the years.
Remember, since you are around.gas, NO SMOKING, WATCH FOR SPARKS, AND NO OPEN FLAMES, NO CUTTING TORCHES !
Hope I was able to help you out and the way I.explained the steps were good, if need more info, let.me.know.
This is an easy job, just a pain due to the rust and jacking the gas tank

May 11, 2014 | 1999 Chevrolet Silverado 1500

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I have a 1998 Chevy Blazer. My gas gauge does not work properly. The gas gauge stay's on FULL at all times no matter how much gas is in it. When it get's low on fuel the gas gauge start's to jump back and...


It has 2 possible solutions 1) fuel sending unit is going bad which the tank has to be dropped to change, 2) you have a bad cluster panel. Hope this helps

Dec 18, 2013 | 1998 Chevrolet Blazer

1 Answer

WHERE YOU PUT GAS INTO TANK IS RUSTED OUT NEED TO KNOW HOW TO CHANGE BOTTLENECK


if it rusted out on the tank side you will have to change the tank, or if it not all the way down to the tank, see if you can cut and get a longer hose. Make sure it is fuel rated because the regular water hose is different from the fuel hose.

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How to shitch and use the second tank of gas on a 99 chevy 3500 heavy duty work truck


This model truck has an automatic transfer pump.. there is no switch.

There has been a known problem with the control module on this setup.. causing the transfer pump to run too long when fuel gets low in the second tank.. called something along the lines of the 4 minute pump out.. they fixed it with modification to the replacement module.

I have known people that got stuck "out of fuel" even when the second tank was full... had to siphon from that tank to the front one... which is why I am aware of it.

There are threads discussing this issue.

Best of luck!

Apr 20, 2011 | 1999 Chevrolet 3500

2 Answers

I have jsut purchased a 2001 chevy silverado extended cab. I went to fill up the tank of gas and the low fuel light came on and it wont register the full tank of gas. There are only 49k miles on the truck....


it is the fuel level sender. the board will wear and cause it to lose signal; in certain spots. will need to replace the sender to fix problem. it will start registering once you burn some gas off. full is just where it drops out

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I have a 2000 Chevy 3500 box truck with 2 gas tanks. The gas guage only goes to 1/2 with both tanks full and it won't pump gas from the second tank. How do I fix this.


Fuel levels are equaled in the tanks via a frame mounted transfer pump that transfers fuel from the rear tank to the front tank where the main pump is. Your transfer pump needs replaced, and should run about 60 bucks. Should find the pump mounted to the frame between tanks.

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How to rmove fuel from fuel tank of 2000 chevy express van?


Some fuel tanks have a drain **** that will allow you to drain all of the gas neatly. If you have a drain ****, it will be located at the lowest point on the tank. Loosen the valve and allow the gas to completely drain.
If your tank has no drain ****, you'll have to drain it by removing one of the fuel lines. The rubber hose that exits the tank at its lowest point will drain the tank fully. It will either be connected to an electric fuel pump, fuel filter, or to a hard fuel line that goes to the front of the car. Loosen the clamp on the end of the line that connects to the gas tank. Pull the hose off and allow the gas to run out of the tank into your container until it is drained completely.

Feb 07, 2009 | 2000 Chevrolet 3500

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Lite poped on for gas filled it and now wont stay going


You got a tank of bad gas. You need to drain the tank and refill with good gas. If that doesn't resolve issue you need to check fuel pressure to see if the fuel pump gave up on you.

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