WITH A FULL TANK MY GUAGE WOULD READ HALF TANK AND CAR WOULD SWITCH OFF WHILE DRIVING AND QUARTER EMPTY. SOMETIME THE CAR WOULDNT START AND WOULD JUMPSTART IT. ONE IT JUST REFUSED EVEN TO JUMP START. NO ERRORS ARE REPORTING EXCEPT FOR POOR ENGIN PERFORMANCE. PLEASE HELP
Check your fuel pressure. Your fuel pump is probably on it's way out.
SOURCE: check gauges light
Possible bad guage, bad wiring, or bad sending unit. Check each one independently of each other, start with wiring first, then sending unit.
SOURCE: 2002 Freelander, all electrical died, jumping battery didn't work
Most likely right.... if the alternator quits you can often run off the battery but once you start accessories like wipers . heater etc it will not last long
Robert
SOURCE: freelander wont start grrrr
This is really one of them that you can spend hundreds and still miss the problem. This is the order that things need to be checked. Start cheap first. But before anything, hook a fuel gauge to the fuel rail and let it run but keep and eye on the pressure. Any eratic movements of the gauge would put the blame on the fuel pump of filter. And have the timing checked. with high miles will need new timing belt. It wouldnt hurt to have a compression test done too. Also is there exhaust coming from the tail pipe adiquitly if not then your catalytic converter is stoped up or about to.
This list does not mean go buy all that. Its just check points for now.
1 air cleaner
2 fuel filter
3 PCV valve
4 throttle sensor.
5 crank and cam sensors
6 MASS airflow sensor
7 spark plug and wires.
sorry for the long to do list but like i said this is one of them probs that could be many things.
SOURCE: wrong reading on fuel gauge
Normally this problem is due to a bad sending unit. The sending unit is the actual device which transmits the level of fuel in the tank to your fuel gauge. The most common cause is a stuck float. The device works by means of a flotation device, often made of a petroleum resistant plastic encasing a foam or cork "float, " which is attached to a light weight metal arm. The arm moves as the float raises and lowers with the level of fuel. This arm connects to a switch which increases and decreases resistance in the circuit. If the arm is stuck or if the float is allowing fuel in it you will get an inaccurate reading. A "logged" float (one filled with fuel) usually reads below the level, whereas an arm which is sticking will read above the level. Now, if the gauge has been reading this way since the car was brand new, the other likely cause is that the needle may have been improperly placed on the gauge at the factory, or the windings in the gauge may be under or over wound causing the inaccurate reading. If you are mechanically inclined you may be able to replace the sending unit yourself. Keep in mind this can be a dangerous procedure for a first time mechanic as it may involve removing the fuel tank from the vehicle. Some vehicles offer access to the upper portion of the fuel tank via an opening located in the trunk under the trunk mat/carpet or under the back seat. If this is the case removal of the fuel tank is not normally necessary, but you will still be working with the fuel tank. If you are able to do this procedure in the vehicle, keep in mind you will first want to disconnect power to the fuel pump and sending unit. You can disconnect the negative battery cable, but I believe on an the kadette you will need to obtain a special cable from your local auto part supply to maintain power to the ECU or PCM to prevent damage to the computer or loss of programming. At the very least remove the fuel pump relay and disconnect any fuse/relay related to the dash gauges prior to beginning this operation. Also be sure to remove the fuse for any possible ignition source inside your vehicle, such as dome and courtesy lights. Keep cell phones away from the work area as well. If you use a "trouble light" be sure it is marked as safe for use near fuel fumes. Keep doors or windows of the vehicle open to allow vapors to escape so you don't suffer any ill effects and to further reduce ignition hazards. If you must remove the fuel tank, practice good safety. Do not be under the tank at any time. Be sure to remove it with very little fuel in it. Go slowly and be sure you don't break any wires or lines. It is a very involved process and may be best left to a certified mechanic or at least one who is very experienced. Keep me posted and let me know if this helps!
SOURCE: fuel guage 2001 chevrolet silverado 1500
Hi
We have the same truck that does the same thing.
The fuel sender in tank is faulty. It is in your gas tank. Common chevrolet problem.
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