Recent content by Hal
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H
Fuel sending unit failing?
I have a mechanic that used to work for a GM dealer and he advised me of the software upgrade. I don’t have the upgrade info at the moment but will try and get some info and reply to you. -
H
Fuel sending unit failing?
My understanding is that there is a sensor in both tanks and the computer does some fancy math to know if one is reading below a certain voltage and the other is above then it is an estimation of the actual level. I’ve been using the Seafoam for about 2 years and only experienced the problem a... -
H
Fuel sending unit failing?
I had same problem with my C5. Ethanol gums up one of the sending units. I put a can of a product called Seafoam in the tank and fill the tank as per normal. Use this every couple of fill ups and the problem should go away. By the way if you fill the tank now you will see the problem disappear...