fuel gauge not working

check to see if power is going to gauge, it may be the dash as they are digital and will do that. it may need a stepper motor in dash

Okay I will check that I will let you know. Thanks

If the fuse is good the problem is probably the gauge gauge cluster. We use a place in Brea California called AER you can UPS it to them for a rebuilt unit to fix the problem.

I checked the fuse and the gauge cluster they are all good I am unsure what to check now. I do have my engine light come on from time to time with an emissions control code could that have anything to do with it

and I check all the fuse but is there one just for the fuel gauge and if so where would it be?

it would be for all gauges so if other ones work it's not the fuse

Did you find out anything else out more about this problem?

No my fuel gauge is the only thing not working when you start the van it goes all the way to full and stays there for a few seconds the goes to empty and stays there I am unsure what to check next

normally when that happens it s' a grounded wire at tank or sending unit. but because yours is all one unit in tank it gets expensive. you also have a micro processor in dash unit so either can be doing it . it is a yellow/wht wire at tank and dash so you see if power is going there while still plugged in or going to it.

OK I will check this next so it's a yellow and white wire that runs from the tank to the dash

yes

We are going to redrop the fuel tank this week hopefully we can figure something out when we do this

all you need do is disconnect it before dropping tank if gauge stays at full then it may be a short but if drops then it may be sender

I followed the wiring for you and the sender feedback signal goes straight into the main PCM computer. So if the pump sender doesn't help the computer itself may be bad, here are the wiring diagrams.

We haven't had a chance to drop the tank yet but we tracked the wires and there isn't a yellow and white wire in any of the wires in the dash or to the tank.the only time it goes to full is when you first start the van other than that it stays at empty I don't see how it could be the sender in the tank as it is in the third fuel pump because we changed the first one hoping it would fix the fuel gauge that didn't work and the fuel pump went out a month later so they sent us another new one and it is put in I don't see 3 fuel pump sending units all being bad

I just talked to my guy at Chevy and he agrees with Hmac300 its the stepper motor for the gauge, you can find one here

http://www.amazon.com/Partsam-x27-168-Instrument-Cluster-Stepper/dp/B00KWQTCX8/ref=sr_1_2?ie=UTF8&qid=1462309288&sr=8-2&keywords=chevy+gauge+stepper+motor

They even give you instructions on how to install them.

I already checked the stepper motor and put another one in and it is still doing the same thing not sure what else to check

The only thing left is the main PCM computer, that what I would try next.