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Author
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Topic: fuel readings
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mustangcoupe67
Journeyman Posts: 31
From:
Registered: Jul 2004
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posted 03-03-2006 11:40 PM
 
Hi, I replaced my fuel tank sender and have my instrument panel "fixed", after that i had my tank empty, then put around 4 gallons of 91 octanes.....then my needle move for the first time but it read 3/4 full (with 4 gallons??).
Any of you had this problem?..some mechanic told me "those cars" had that problem always...they are not very precise in the fuel readings...
anyone??
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68 Coop
Gearhead Posts: 5847
From: Mesquite, NV. 89027
Registered: Oct 2004
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posted 03-04-2006 12:17 AM
Have you driven the car since you put the gas in it??? Maybe the float is sticking. My car ran out of gas on me once, but was showing 1/4 tank. Since then, I gas up at no less than a 1/2 tank to be sure.------------------
William
The easiest way to find something lost, is to buy a replacement. 68 Coupe
289
C4
2:79 rear gears
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Pierre
Gearhead Posts: 661
From: Near Paris, France
Registered: Apr 2002
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posted 03-04-2006 04:07 AM
Mine is consistent, even more now with the electronic constant voltage unit. If your other gauges are doing fine then you need to adjust the sending unit in the tank. If all gauges are off-scale you may want to check the Constant Voltage unit behind the dash board. The gauge itself is rarely at fault.
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mustangcoupe67
Journeyman Posts: 31
From:
Registered: Jul 2004
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posted 03-04-2006 11:35 AM
yes im driving it since i put on 4 gallons, and still reads 3/4 full and doesnt come down from there,it should read about 1/4 at least....any other opinion? Im not an expert but if my voltage regulator is ok, then whats wrong? or is it supposed to be that way...
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Pierre
Gearhead Posts: 661
From: Near Paris, France
Registered: Apr 2002
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posted 03-05-2006 05:07 AM
I have never dismounted a sending unit but you probably need to calibrate it (may be by bending the floating rod). Hopefully someone who has done that before can clear it up for us
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