Question about 1987 GMC VanDura
So the fuel gauge doesn't work. I assume it would be the sending unit or possibly a grounding issue but I'm not sure about how I can check what the issue would be...This beast was sitting in a lot for about 4 years and has only been back out on the road for 2 months so all kinds of fun little gremlins are popping up. On the bright side it made it all the way across Canada.
If it sat for 4 years, I'd be leaning towards the sending unit although the ground is easier to check first. If the ground isn't corroded or loose (or broken), then you'll most likely have to pull the sending unit. I've had luck cleaning and reinstalling them after they have sat in diesel fuel without being used for a long time. The oil in the fuel does a good job of gumming the arm in place. You can also check the resistance (Ohm meter) to see if it's working or not before pulling it.
Posted on Apr 29, 2010
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Posted on Jan 02, 2017
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