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Fuel gague needle bounces when you turn on the key ,dont belive it reads correct below a half a tank

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The problem is the sending unit - either it has a broken wire on it (which will be visible), its contacts are dirty and need electrical contact cleaner, or the sending unit is just flat-out broken and needs replacement.

Posted on Aug 14, 2008

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My fuel gauge light is on, and my TCS light is on and my anti-lock brake system is on.


The ABS and traction lights are on the same circuit. You have an ABS failure causing these lights to come on. You will need to scan the ABS system for codes and repair the fault in order for the light to stay out. The fuel light is on a different circuit and therefore will be a seperate issue. If the fuel gague reads correctly and the low fuel light is on, suspect an internal problem with the fuel gague assembly inside the gas tank

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The most common problem is the fuel tank sending unit inside the gas tank. It is a module consisting of the fuel pump and gague assembly. Not cheap fix.

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2001 durimax 3500 dula fule gague dose not work


sounds like a ground proublem try to reach top of fuel tank an wigle wires if helps may have to drop tank to clean ground some times you may see between cab and box take stick to see if loose grounds get croted on them tap it also leave key on and try if it moves at all that is it

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I am having a issue with my fuel gauge on my 99 chevy cavalier. When i get to about a 1/4 of a tank, the needle wont move any further down. Then when i turn on the car, it will jump to full, and then start...


The fuel sender unit (inside the tank) has malfunctioned i think or there is too much resistance on the wire which is caused by a rusty/corroded connection - Go to a wreckers and try a different one or just get a brand new one but it sounds like the sender unit float gets to a point then jams quite common....

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MY Chevy Surburban 2001, 1500 fuel meter problem


Your gas gague sending unit in the fuel tank is defective, u will need to replace it.

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Full tank-fuel gague registers empty-need fuel light is on


There is a sending unit in the fuel tank that registers how much fuel there is. It is probably broken, giving you a funny reading on your gauge.

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I have a 1991 buick park avenue ultra


Speedometer or fuel gage?

If speedometer which is bouncing around, it is likely a bad ground near where the speed sensor wire harness (which connects the speed sensor to the rest of the "network") exits the transmission housing. It's at the very back of the transmission (you have a 4T60E trans) to the left of where the right side half-shaft leaves the trans housing. Just look for damaged wires. If none, replace the speed sensor for $50-60.

If it is the fuel gage, the sensor is probably not "zeroed"--it's reading wrong, too high, and if it were to start at true "empty", it would read right. Thus, the gage is always reading a little high (maybe a 1/8-1/10th of a tank too high?). This isn't a problem until to stop, start, or turn quickly and cause the fule to slosh around in the tank and starve the in-tank pickup which sends fuel to the engine.

If it is the fuel gage, you should simply put as much fuel in as you can and see if the needle goes far above "F". If it does, note how far it went and then practice filling the tank when the needle is that same distance above "E".

Hope this helps.

Sep 15, 2008 | 1991 Buick Park Avenue

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