Having problems with your 2001 GMC Sierra 2500HD ?
Water in fuel light just started to come on intermittently. Changed the fuel filters 3 weeks ago or 7500 miles back. Had never changed the filters on fuel or transmission since the first 80,000 miles. Truck runs smoothly, just that pesky warning light. How do you reset it? My truck has 215,000 plus miles on it. We did take it from Las Vegas area to Kodiak Alaska and back right after the fuel filter change.
The change in temperature from Las Vegas to Alaska could have resulted in condensation building up in your fuel tank. Also you could have gotten some diesel fuel contaminated with water. The transmission oil should be changed as per manufactures suggestion or at least every 50,00 miles especially if you are towing.
I reset my 2003 2500hd by turning the key on-pushing on gas pedel 3 times then turning key off
Repair Help & Product Troubleshooting for 2001 GMC Sierra 2500HD
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