? About Fuel Gauge and SCT - Ford Powerstroke Diesel Forum
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Old 03-24-2010, 05:22 AM
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? About Fuel Gauge and SCT

When I was stock the fuel gauge would be pretty accurate as far as miles until empty. I could normally get down to 50 miles until empty then refill. The miles would on the counter would match fairly well. For ex 100 miles to empty and I could go 50 miles (actual driving miles) and then the miles to empty would be 50 or there about. Now with the sct on the vehicle and driving habits the same (pretty much) My miles to empty go from 150 miles to 40 miles to empty on sometimes 40 miles (actual driving miles). Last week I got in the truck and it said I had 123 miles to empty and the gauge was between 1/4 and 1/2. I went 38 miles and the gauge said 40 miles to empty. I was 10 miles to the fuel station and when I made it there the gauge said 20 miles to empty....I turned the vehicle off, fueled up then left. About a mile down the road the truck ran BAD, Rough, Shaking then as I was pulling to the side of the road it was fine. No problems since then other the gauge being off as usual. Another example was I had a 1/4 tank put 15 gallons in it then it showed almost 3/4 tank and like 400 miles to empty. As soon as I started driving the miles to empty rapidly fell from 400 to 200 (probably where it should have been) while driving.

Have any of you noticed this with the SCT or am I having some other problems such as fuel sender problems? Please help and thanks if it you made it this far in my post
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