Question about 2000 Toyota Tacoma PreRunner

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Do you have to drop the fuel tank to change out the fuel sending unit or can you take of the bed to get to it?

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Most trucks have the sending unit on top of the tank... depending on your particular vehicle the sending unit may be under the cab of the truck or under the bed. You can crawl under the truck and look on the top of the tank (may have to use a mirror and flashlight) and see where its located. If its under the bed you could probably take the bed off and have all the access in the world. If you do take the bed off don't forget about all the tail light wiring, the fuel fill tube, and all grounding straps. Also don't forget to have some way to safely lift the bed off and reinstall it.(some buddies maybe)

Posted on Mar 14, 2011


You lossen & tip up the bed, if you
don't want to drop it down

Posted on Mar 14, 2011


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I have a 2004 chevy durahmax the fuel gage doesnt work i have ran outta fuel 2x bc when its on 1/4 tank its really empty how do i fix it bc this is getting rediculous

It sounds like you need to replace the sending unit which is located in the fuel tank and is part of the pump unit. Some you can buy just the sending unit and others it comes as a module which means the pump and sending unit come together. Not sure what yours has. When changing I find it easier to remove the bed that to drop the fuel tank.

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How do I remove the bed from 2000 F250 Super Duty quad cab diesel short bed? I need to change the fuel sending unit in the fuel tank and think removing the bed may be easier than the fuel tank.

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I have a 1986 chevy 1/2 ton. the fuel gauge wasn't working so i replaced the sending unit and now when the tank is full the gauge reads at only 1/4 tank...any ideas? i was thinking maybe the gauge itself...

When you changed the sending unit, was this in the tank? or does it have a manual that bolts to the block. If it is on the block, drop the tank (or take the bed off) and replace the float.


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Apr 30, 2010 | 1986 Chevrolet C1500

1 Answer

Fuel Pump

The fuel pump is in the gas tank, the best way to do this is to get some friends and remove the bed from the frame. There is i believe 8 bolts that hold the bed to the frame, and don't forget to remove the hardware to the gas tank filler neck. Once the bed is off the frame, you can get to the fuel tank. Disconnect the wire harness and might as well replace the harness since there only $12.00 last i looked, disconnect the fuel line and return line. Remove the fuel pump retainer ring and lift up on the fuel pump sending unit. To install replace the rubber O ring and oil it before installing the new fuel pump sending unit. Install the fuel sending unit retaining ring, gas lines, new wire harness, and filler tube. Good lime also to check the hose to the EVAP since you can inspect them, look for any dry rot to the vacuum lines and replace if needed. Reinstall the bed and use lock tight to the bed bolts or replace them with stainless bolts. Good luck and hope this helps, oh and you might as well change the fuel filter while your have the bed off. The other way is to drop the gas tank which means draining the tank and raising the truck. 

Jun 20, 2009 | 1996 Chevrolet K1500

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Fuel sending unit on a 1987 4x4 Dodge Power Wagon

Fuel sending unit will be on top of the tank. You'll see wires going to it, no mistaking.

If there is no access panel on the bed of your truck, then you COULD take the bed off, but it'd be a lot of work.

It'd be much simpler to drive the truck till it's about out of fuel, then unbolt the straps that are holding the tank in and drop the tank slowly with a jack. Be sure to disconnect your filler neck.

If you get a chance, soak the bolts down with a penetrate oil a few days before you plan to work on this thing. That's tank's been bolted in for 20+ years.

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Can't say for sure since you did not include year of your car but more than likely it's the fuel sending unit that requires replacement. Some years you can replace just the level sensor on the fuel sending unit but both repairs involve dropping the gas tank and opening to remove the fuel sending unit.

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No power to fuel pump. Power up to open circuit relay.

No power to the fuel pump is a common issue with Toyota Trucks. More than likely, the power wire at the top of the fuel tank sending unit is rusted off. If this is the case, you either need to drop the tank, or remove the bed to replace the sending unit assembly. I have done it both ways, but have found that removing the bed is easier than dropping the tank.

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