It could be a faulty unit or a disconnected connection (oxymoron?). I would need to know the car and year to give you specific instructions on how to go about checking the connection. You could remove the fuel tank to access the fuel sender. However if you remove the carpet in the boot there is a rectangular template marked on the floor. Cut this out and you can remove the fuel guage sender. Once the cause of the problem has been rectified, make up a hinge and fastner arrangement for future access.
You should first test the fuel gauge sender unit for a fault with a multimeter. The sender connector is normally located in the left hand pullout section in the trunk or cargo area. There are different resistance values for various tank levels. A reading of infinity or intermittent infinity ohms suggests a faulty sender. If the sender is bad you will have to replace it (it is located in the fuel tank). If the sender is working check the harness connector for corrosion. If the connections are good suspect the gauge. The gauge has dry soldered joints and you will have to remove the gauge to investigate. The printed circuit connections may be loose or corroded.
Check the wire to the sensor and be sure it is hooked up. If so remove it from the sending unit. Turn the ignition and have someone watch the gauge while you ground it to the engine. If it moves the sender is bad.
You have a ground from the oil sender unit to the gauge. This is how you check a gauge. ground out the wire at the sender and it pegs out the gauge.
check for broken wire from fuel sender unit in fuel tank to gauge. check fuel sender unit for proper operation. float may be stuck in the tank then check fuel gauge
Should be on the centre brace behind the grill, under the bonnet catch. Remove the grill.
Either the wire from the gauge to the sender is broken or the sender is bad.
Fuel level sender (in tank) faulty. If replacement doesn't correct fault, check sender wiring back to instrument for poor connection. Finally, replace gauge.
Have to remove oil gauge sending unit and check pressure with a master gauge. Sender or gauge could be faulty. I would not suspect the pump unless you see signs. First of all, does the gauge have pressure when the oil is cold? If it does and the pressure drops off when the oil gets hot, then you cold have a pump or relief valve problem. Removing the pump and inspecting should be your last resort.
only 3 reasons a temp gauge wont work the temp sender is bad the gauge is bad or the wire from temp sender to gauge is broken
1990 Chevrolet Lumina temperature sender is located on the back side of the thermostat housing. The sender has a wire that goes to the temperature gauge.
There's probably 1 for the cluster. if it's acting up, check sender.
its the sender or wiring not the pump if it was the pump you would know BELIEVE ME YOU WOULD KNOW The most likely answer is niether. You can remove the tube from the oil sending unit and the gauge. Blow through it and see if it is clogged. If it is, use compressed air and clean out whatever trash is in there. Also, check the gauge. If it has returned to zero, you've found the problem. If not, you may have to remove the gauge and clean it out. If the gauge isn't the problem, check the oil sending unit. Use a flashlight, check into the hole and see if you can see any kind of blockage. If there is, remove the sending unit, clean it out using a can of carb cleaner, then replace. Re-connect the line between the sending unit and the gauge. Start your pickup and check for pressure and also oil leaks. If the problem was the pump, you probably would've trashed your bearings in your engine, causing it to sieze up.
I don't think there is a fuse, sounds like the sender is bad.The sender is located on the fuel pump.the sender wire could be loose,pull rear seats down and pull back the carpet and you can access the fuel pump.The is a cover with about 8 screws.Remove the nuts from the screws and check the sender wires.
There are a variety of reasons from a bad sender or gauge to low oil level to worn bearings. Check the sender first as it's the easiest.
Fill up with diesel and see if the gauge still goes up. The sender unit is under the back seat, one to the left under 6" black plastic plug is the fuel pump, the one to the right is the sender unit. Prise the plug out of the floor and unscrew the the sender unit from tank. Once out it can be moved manually while the ignition is on and see the gauge moving. The float arm is stiff and am still truying to work out why as 3 others checked were all the same. To get at the dash gauge remove the steering wheel, instrument shroud and instrument panel, not a lot to see as all printed circuits.
Either there is a short in the fuel sender wiring or the sender in the tank is bad.The actual gauge is rarely bad.Good luck.
Either the gauge is broken or the sender is broken.
It gauges and distributes the power required to get the correct reading from your oil gauge display.
fuel gauge sender and pump are in the gas tank (which must be removed).
Obviously the tank has to be removed. 4 TIMES 13MM SOCKET BOLTS..REMOVE THEM This drops the tank down. Fuel filler and breather pipe(next to each other)..remove them. Then the fuel delivery/return pipes off the sender. and fuel gauge wire off the sender. pull the tank out and the sender just screws out. Money saved on repairs can then be wasted in the pub or betting shop...;)
Answeroil sending unit needs replaced Remove and clean the connections with switch cleaner. (not WD40) Then refit and try.
Check the fuel level sensor. It's in the tank, attached to the fuel sending module. If you need to replace it, you'll have to drop the gas tank, carefully remove the retaining ring around the fuel sender, and pull the whole unit out. You can then remove the level sensor from it.
Probably the temperature sender. Should be two of them, one by the thermostat housing and probably one on the head. One is for the gauge and one for the sender. Check the fuse, relay and unplug the fan and run power and ground to it to make sure the fan itself is alright. Most likely is the sender.
supposedly there is a cover in the trunk that you can remove to access the top of the fuel tank to replace the fuel pump and sender
Remove hose and attach a vacuum gauge