Question about 2001 GMC Sierra Crew Cab

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GAS GAUGE BROKEN

THE NEEDLE ON THE GAS GAUGE WORKS BUT THE LEVEL OF FUEL THAT IS ON THE GAUGE IS WRONG. WHAT IS WRONG WITH IT?

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Yes, tank sending unit may be bad, as mine is also. About a $600 repair.

Posted on Jun 21, 2010

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Sounds like the fuel level sending unit has gone bad in the tank. Although gauges do fail, the more likely cause is tank level sensor.

Posted on May 07, 2010

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1 Answer

Do I need to take out and and then reinsert the fuel pump fuse to reset the fuel gauge


That won't affect the fuel gauge. Different circuits, entirely. Any issue with the fuel gauge is between the gauge on the dash, a little wiring to the gas tank, and the sender unit inside the tank. In most cases, the problem turns out to be the sending unit inside the tank.

To check the gauge itself for working, you can ground the fuel gauge wire at the gas tank connector, and watch for movement on the gauge, with the key in ON. You take the connector off at the gas tank, find the wire for the fuel level sender (or gauge), and touch it to a good ground- a metal piece on the car frame. If gauge is good, the needle will move either to full or to empty, but you can see the needle move to a new point, when you (temporarily, only temporarily) ground the fuel gauge wire. The key in the switch must be in on. If this causes the needle to move, then the dash gauge is good, and the problem is the sender unit in the tank. This unit has a variable resistor, not too expensive. The fun is getting to it.

Nov 30, 2016 | Cars & Trucks

2 Answers

Had fuel level sensor replaced few years ago. today fuel gauge needle does not move and is positioned below the empty point. any ideas what may cause this?


It could be any one or more of this list:
Fuel level sensor. Just because you replaced it once, doesn't mean it's still good.
Connection to fuel sensor
Broken wire between fuel sensor and gauge
Broken wire between battery and fuel sensor/gauge
Bad gauge

Nov 03, 2015 | 2005 Buick Rainier

1 Answer

Saab gas needle


If just the gas gauge is the problem then you most likely have a defective fuel level sending unit. The fuel level sending unit for the gas gauge is located of course inside the gas tank.

Mar 14, 2012 | 2006 Saab 9-3 2.0T

1 Answer

Just bought a '92 plymouth Acclaim with 37000 miles. It's in great shape but I'm not sure if the fuel guage is working. Only drove it home, less than 10 miles. Is the guage mechanical or...


There's a float inside the tank that the fuel gauge works off of. If you step on the brakes or accelerate hard it causes the gas inside the tank to slosh around and you can see the fuel gauge move when you do this. If you know the vehicle has gas in it, the best way to check if the gauge is bad is to drive around enough to where you should have burnt a noticeable amount of gas. If the gauge doesn't move, then there's something wrong with it.


Since the gauge moved when you braked hard, I would assume it's working properly because it picked up on the level change inside the tank where the float's at.

May 19, 2011 | 1992 Plymouth Acclaim

1 Answer

Just changed fuel pump and now gas gauge does not work


YOU HAVE WRONG TYPE FUEL PUMP OR FUEL PUMP WIRING HAS BROKEN GROUND WIRE.FUEL LEVEL SENDING UNIT WIRING IS DAMAGED OR DISCONNECTED.

Dec 08, 2010 | Ford Expedition Cars & Trucks

2 Answers

My gas gauge doesn't work in my 2003 bonneville. What can i do to fix this problem, along with my broken gas gauge my heater in my drivers side seat is no longer working, i would appreciate any help thanks...


It might not be anything wrong with your fuel sending unit. Keep an eye on your other gauges. I own a 2004 Pontiac Bonneville GXP. All of my gauges have started acting erratically. It started with my Temp. gauge, moved on to my speedometer, and now my oil pressure , fuel level and batty volt gauges are affected too. Its a very common problem with GM vehicles.

Nov 12, 2009 | 2004 Pontiac Bonneville

2 Answers

2001 chevy silverado 4.8 gas gauge not working properly


Fairly common problem with GM vehicles. The sending unit in your tank has a small circuit board that an arm is attached to which moves up and down according to your fuel level. This circuit board and arm are not making good contact. Unfortunately the only good solution is to replace this part.

Oct 28, 2009 | 1999 Chevrolet Silverado 1500

3 Answers

Inquiry of 85 300zx analog fuel gauge operation


One is Fuel Level, and the other is Fuel Pressure

Sep 14, 2009 | 1985 Nissan 300ZX

1 Answer

I have a 04 chevy malibu with gas gauge issues where I filled up the gas and right after the needle dropped below emoty what is wrong?


You need a fuel level sensor replaced. Might as well do the whole fuel pump while you are in there.

Jun 05, 2009 | 1997 Dodge Caravan

1 Answer

Gas gauge


The cause of this is the gas tank fuel level sending unit, the gas tank must be pulled to replace this part.

Jul 27, 2008 | 1995 Ford Contour

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