At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You will need to test a number of things, the fuel gauge is part of a rather simple circuit.
Battery -> gauge -> tank sensor -> chassis ground to battery
If the circuit is broken at any of the steps, your gauge will read "empty". If the tank sensor is bad, it could read empty, or if the float in the tank has sunk, it will read empty.
I start at the gauge with a "test light" that glows when it sees battery voltage. Get a light at the connection to the gauge? Good. find the sensor connection, usually on top of the tank, accessible in the trunk. Probe with test light. Light on? Good. Connect wire to ground, gauge should read "full". If all that is as I said, then the tank sensor is bad. If you don't read battery at any step, you know where the problem is.
when the tank is full the resistance is low so the power through the gage make is read full
as the tank empties , the resistance increases so the less current means the gauge reads less until empty there is little or no power , the gauge reads empty
simple check , turn the ignition off, no power , no gauge reading
This may be two diffrent problems, first start by checking the fuses, check them all. next if you now how to unplug the fuel sender and then ground it, when unpluged it will read full when you ground it ,it will read empty, this is a way to see if the gauge is working, if the gauge reads when this is done then the fuel sender is bad and wiring and gauge are good, if it doesnt read then you will need to check gauge and wiring to gauge. next is speed, i would start by testing the sensor or cable to see if its working, your car may have a cable being a 1993, remove the cable and spin by hand and see if needle jumps also check for broken cable when removing, you can pull cable out of housing sleeve to see if its broken, start with these tests.
According to what I read, test the gauge first. Hook power to where the white wire attaches. Hook a ground to the black wire connector. The gauge should rise to full. (May take a while). When on full, the tan wire connector to same ground. It should go to empty. If both work, gauge is good. To test sender, in the empty position, your ohm meter should read 0-2. 1/2 tank should read about 40, and full should read 84-88 ohms.
You have a bad fuel level sensor.The fuel tank needs to come out and the sensor replaced.You don`t have to replace the pump assembly.You can get the level sensor separate.I`m not sure if the parts stores have it but I know the dealerships do.Hope this helps.Good luck.
×