Full fuel tank reads 3/4

djstatix · 10-31-2005, 05:15 PM

Anyone have this problem or fixed it?

2001 explorer sport

davidmmm69 · 10-31-2005, 05:23 PM

Quote:

Originally Posted by djstatix

Anyone have this problem or fixed it?

2001 explorer sport

is that what it reads regardless of what is in the tank.

maybe sending unit,

djstatix · 10-31-2005, 07:10 PM

no, it goes down once you have reached 3/4 then acts as normal.. sorry forgot to mention that.

Tilt168 · 10-31-2005, 07:20 PM

happend to my 2000 2x, i just had to empty the tank and refill it
its probably the little sensor that detects how much fuel is left

djstatix · 11-01-2005, 05:56 PM

empty as in completely drain? i have pushed it to the light and sputtering for gas in turns but not a full drain.

djstatix · 08-02-2007, 01:11 PM

Anyone? After a fill up gauge reads 3/4 full. After around 100 miles or so it starts to act normally and works fine. It never indicates a full take basically when i fill'er up. Operates normally when fuel gets below 3/4.

n0xdw · 08-02-2007, 01:21 PM

Perhaps something is interfering with the float where it is unable to go on up. If it is like the 99 there is a yellow and white stripe wire that feeds that signal. approximately 3 volts should be very near full, 1.7 would be 1/2 and .5 volt would be empty. If you use a gauge substitute 145-160 ohms should be full. I suppose if you unhook the inline connector it should go past full. That would set a DTC for a high voltage on the fuel sender circuit and the fuel pump, but it would be a quick and easy test to verify the gauge itself is ok. The inline connector is not too hard to get to if you pull the one that comes out about under where the drivers seat is (under the vehicle).

djstatix · 08-02-2007, 01:36 PM

thanks, going out to try that.

djstatix · 08-02-2007, 01:42 PM

I just tried that, i have very little fuel in my tank right now and when i disconnected that plug it my fuel gauge went up to 3/4 tank as if i had just fueled it and no farther.. So im assuming its not the fuel tank or sensor but now i think it might have to be the dash gauge. Any other ideas fwd of the fuel tank?

n0xdw · 08-02-2007, 04:15 PM

Sounds like it must be either the gauge or the antislosh module. The antislosh module plugs into the back of the cluster. With the gauge removed from the cluster the voltage from the slosh module should be about 9 volts at the full mark if i remember right. Seems like 3V at empty, 6V at midscale, and 9V at full. I did not check the voltages with the gauge installed in the cluster. Sounds like you are half the way there.

10-31-2005, 05:15 PM	#1
djstatix Wannabe Elite Explorer Killeen, TX 2001 explorer sport Join Date: Nov 2002 Posts: 99 Vehicle Specs (Original Poster)	Full fuel tank reads 3/4 Anyone have this problem or fixed it? 2001 explorer sport __________________ Everyone has a plan until you punch them in the mouth... Mike Tyson 2013 Explorer XLT 2001 Explorer Sport (SOLD FOR 2013 F150)

10-31-2005, 07:10 PM	#3
djstatix Wannabe Elite Explorer Killeen, TX 2001 explorer sport Join Date: Nov 2002 Posts: 99 Vehicle Specs (Original Poster)	no, it goes down once you have reached 3/4 then acts as normal.. sorry forgot to mention that. __________________ Everyone has a plan until you punch them in the mouth... Mike Tyson 2013 Explorer XLT 2001 Explorer Sport (SOLD FOR 2013 F150)

10-31-2005, 07:20 PM	#4
Tilt168 Wannabe Elite Explorer Colorado Springs, CO 94 Bronco XLT Join Date: Jul 2005 Posts: 522 Vehicle Specs	happend to my 2000 2x, i just had to empty the tank and refill it its probably the little sensor that detects how much fuel is left __________________ -LT NINJA IS DEAD.... new ride: (the) Queen : 94 Bronco XLT 6" lift, 35" ProComp MTs, LSD, custum bumper w/9000 Warn, duel xhaust, chipped, K+N, system... LT's MySpace

11-01-2005, 05:56 PM	#5
djstatix Wannabe Elite Explorer Killeen, TX 2001 explorer sport Join Date: Nov 2002 Posts: 99 Vehicle Specs (Original Poster)	empty as in completely drain? i have pushed it to the light and sputtering for gas in turns but not a full drain. __________________ Everyone has a plan until you punch them in the mouth... Mike Tyson 2013 Explorer XLT 2001 Explorer Sport (SOLD FOR 2013 F150)

08-02-2007, 01:11 PM	#6
djstatix Wannabe Elite Explorer Killeen, TX 2001 explorer sport Join Date: Nov 2002 Posts: 99 Vehicle Specs (Original Poster)	Anyone? After a fill up gauge reads 3/4 full. After around 100 miles or so it starts to act normally and works fine. It never indicates a full take basically when i fill'er up. Operates normally when fuel gets below 3/4. __________________ Everyone has a plan until you punch them in the mouth... Mike Tyson 2013 Explorer XLT 2001 Explorer Sport (SOLD FOR 2013 F150)

08-02-2007, 01:21 PM	#7
n0xdw Wannabe Elite Explorer Akron Co 85 Bronco II Join Date: Sep 2006 Posts: 86 Vehicle Specs	Perhaps something is interfering with the float where it is unable to go on up. If it is like the 99 there is a yellow and white stripe wire that feeds that signal. approximately 3 volts should be very near full, 1.7 would be 1/2 and .5 volt would be empty. If you use a gauge substitute 145-160 ohms should be full. I suppose if you unhook the inline connector it should go past full. That would set a DTC for a high voltage on the fuel sender circuit and the fuel pump, but it would be a quick and easy test to verify the gauge itself is ok. The inline connector is not too hard to get to if you pull the one that comes out about under where the drivers seat is (under the vehicle). __________________ 73 de NØXDW 1985 B2 with 1999 4.0L with OBD2 & PATS

08-02-2007, 01:36 PM	#8
djstatix Wannabe Elite Explorer Killeen, TX 2001 explorer sport Join Date: Nov 2002 Posts: 99 Vehicle Specs (Original Poster)	thanks, going out to try that. __________________ Everyone has a plan until you punch them in the mouth... Mike Tyson 2013 Explorer XLT 2001 Explorer Sport (SOLD FOR 2013 F150)

08-02-2007, 01:42 PM	#9
djstatix Wannabe Elite Explorer Killeen, TX 2001 explorer sport Join Date: Nov 2002 Posts: 99 Vehicle Specs (Original Poster)	I just tried that, i have very little fuel in my tank right now and when i disconnected that plug it my fuel gauge went up to 3/4 tank as if i had just fueled it and no farther.. So im assuming its not the fuel tank or sensor but now i think it might have to be the dash gauge. Any other ideas fwd of the fuel tank? __________________ Everyone has a plan until you punch them in the mouth... Mike Tyson 2013 Explorer XLT 2001 Explorer Sport (SOLD FOR 2013 F150)

08-02-2007, 04:15 PM	#10
n0xdw Wannabe Elite Explorer Akron Co 85 Bronco II Join Date: Sep 2006 Posts: 86 Vehicle Specs	Sounds like it must be either the gauge or the antislosh module. The antislosh module plugs into the back of the cluster. With the gauge removed from the cluster the voltage from the slosh module should be about 9 volts at the full mark if i remember right. Seems like 3V at empty, 6V at midscale, and 9V at full. I did not check the voltages with the gauge installed in the cluster. Sounds like you are half the way there. __________________ 73 de NØXDW 1985 B2 with 1999 4.0L with OBD2 & PATS