Fuel gage drops to "E" even when full.
01-15-2015, 10:34 PM
#81
Team Owner
Incorrect. ONLY, the mid 2003s and all 2004s require tank removal.
01-15-2015, 10:40 PM
#82
Team Owner
Because there is more than one thing that can cause fuel level readings to be incorrect or false. Deposits on the fuel sender "card" may not always be the problem.
01-16-2015, 05:11 AM
#83
Instructor
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Location: Hampton GA
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01-16-2015, 06:53 AM
#84
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Faulty Fuel Gauge
I used to commute between Houston and The Woodlands in my 98 when I got the exact same issue. I tried Techron, but that did not work. I started to look for other explanations and noticed that the gauge fel to zero at the exact same spot along the route, after about 50 mls of driving. This happened ove and over again. My conclusion was that there is a fault in the system that arises after a certain period of driving or based on miles. Explaining it I cannot. I just learned to live with it. I certainly do not believe tha any chemicals would make a difference.
Carcrisis
01-16-2015, 11:02 AM
#85
Team Owner
The fuel system was redesigned sometime in '02 (for emissions reasons) and during the '03 model year a running change was made. The newer design, which carries RPO code "FFS", uses a top access port, requiring the tanks be dropped to service the pumps.
The C5 fuel system design has been the subject of MUCH discussion here over the last 10 to 15 years or so.
01-16-2015, 11:33 AM
#86
Melting Slicks
The drop to zero, followed by normal operation after a restart - which is what people are reporting, is the problem the fix is aimed at.
Or to put it another way - get the reflash done before you post the exact same set of symptoms it is designed to fix. And especially before you get into dropping the tanks and other major work.
01-17-2015, 04:54 AM
#87
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Fuel Tank Removal
The fuel pump access port (opening) on all C5s from '97 to mid-'03 is on the lower rear side of both tanks. Either pump out, or drain, excess fuel then unbolt the access plate (also called the fuel hat) and remove. The tanks stay in place.
The fuel system was redesigned sometime in '02 (for emissions reasons) and during the '03 model year a running change was made. The newer design, which carries RPO code "FFS", uses a top access port, requiring the tanks be dropped to service the pumps.
The C5 fuel system design has been the subject of MUCH discussion here over the last 10 to 15 years or so.
The fuel system was redesigned sometime in '02 (for emissions reasons) and during the '03 model year a running change was made. The newer design, which carries RPO code "FFS", uses a top access port, requiring the tanks be dropped to service the pumps.
The C5 fuel system design has been the subject of MUCH discussion here over the last 10 to 15 years or so.
Carcrisis
01-17-2015, 07:30 PM
#88
Team Owner
