Gas Gage not working properly - 1996 Plymouth Voyager

To troubleshoot, I need year--make--model, vehicle sold in the US.
I'd check the coolant temp sensor and wiring circuits. The same thing for fuel gage sending unit. Sometimes for the fuel gage sending unit, I get a couple of resistors one represents empty, the other represents full. If the gage reacts properly then the problem should be the sending unit in the gas tank.

I didn't see an s15 in that model year, in my database?
If the speedometer works but the tach doesn't, I think something is wrong with instrument cluster?
GM has had a problem with fuel gage sending units. The sending units are not hard wired to instrument cluster, they send signal to pcm, the pcm sends serial data to instrument cluster, telling the cluster the gage settings.
It may be possible to use different size resistors in place of the fuel level sending unit, to see if fuel gage reacts properly to different resistors, if the gage reacts properly, then I think the problem is the fuel gage sending unit.

If you replaced fuel pump, you should have checked orientation of float to make sure it doesn't hit a baffle or anything.
You can use resistors to see if fuel gage reacts properly to the resistors, 90 ohms is full
0 ohms is empty. The wire colors for sending unit are pink and black. Take connector loose, use resistor between proper terminals, key on. If the gage reacts properly, the problem is in the gas tank.
Use a gage, check proper fuel pressure, 34--47 psi.
As far as pressure in the gas tank, check evap system where applicable or vent tube.

new sender unit in the tank is the only answer

float in tank could be stuck or you have a faulty guage.
Check all your wiring!
Hope this helps, please let me know

Its most likely the sending unit in the fuel tank is not working properly and needs replaced.


Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

sounds like somone has a garden hose in your tank personaly i would check the fuel tank ground
it is likely the reason your gage doesnt work
once gage works you can properly monitor fuel use

theres a float inside the gas tank,check to see if that is attached properly

a fuel sending unit seems to be the most popular solution. the part is about $40. I think the labor is what's going to kill you.

might be a bad ground some where