Trouble with fuel gauge.....?
#1
Trouble with fuel gauge.....?
I needed to refuel today and I decided to go ahead and put $20 worth of gas (5.9gallons).....when I finished refueling I get in my car and notice my fuel gauge exactly where it was when I had pulled in....28 miles to empty. The thing didn't move a single micron. I go back to the pump to make sure the pump was actually flowing gas and not just air but the pump was fine. After driving around for 8 miles the gauge still wasn't moving. I go to another station and top off the tank.....this time the gauge moved but only to the half tank mark. After driving for another 5 miles it's showing less than 3/4 full.
This has never happened to me before. Once I fill it up it usually registers it immediately. Is this a gauge problem?
This has never happened to me before. Once I fill it up it usually registers it immediately. Is this a gauge problem?
#5
Sorry for bringing up such an old thread but the same exact thing happened today to my 08TT, put $20 on a chevron because I could not get with the gas I had to a shell station, and the gauge is stuck at the same place, went to another gas station to fill her up, and it only shows 3/4 of the tank.... Any advice? Could it be a bad sensor?
Thanks
Thanks
#6
Some thing to do the fuel tank having a hump in the middle & the sensor is only on one side of the hump, so you have to fill it up passed the hump for the gauge to read, usually about 8-10 gallons .Always happens to me when i run it low to put in MS109 & i have to put in 10 gall for it to show.Def a design flaw i would hope got fixed on the 997.2tt
Last edited by twturbo; 10-13-2010 at 05:37 PM.
#7
Each and every P car i owned had this problem...when reserve light is lit,you need to fill at least 30-40lt of fuel to make it show correct level...This has happened to my 986,996,996TT and 997TT
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#8
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#9
I just posted a thread asking about a related question. My tank registered 3 ticks above empty. I drove to the gas station and added another 2 gallons to get a proper mix of 91/109. As I was pulling out, the gauge didn't budge. Thought it odd, then 1/2 a mile later, the fuel gauge light went off. Huh?? Thought to myself, how could the light go off after just putting in 2 gallons? Guess the above posts answers that.
So, approximately how much fuel is left in the tank once the light turns on?
So, approximately how much fuel is left in the tank once the light turns on?
#10
I just posted a thread asking about a related question. My tank registered 3 ticks above empty. I drove to the gas station and added another 2 gallons to get a proper mix of 91/109. As I was pulling out, the gauge didn't budge. Thought it odd, then 1/2 a mile later, the fuel gauge light went off. Huh?? Thought to myself, how could the light go off after just putting in 2 gallons? Guess the above posts answers that.
So, approximately how much fuel is left in the tank once the light turns on?
So, approximately how much fuel is left in the tank once the light turns on?
#11
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#13
I just posted a thread asking about a related question. My tank registered 3 ticks above empty. I drove to the gas station and added another 2 gallons to get a proper mix of 91/109. As I was pulling out, the gauge didn't budge. Thought it odd, then 1/2 a mile later, the fuel gauge light went off. Huh?? Thought to myself, how could the light go off after just putting in 2 gallons? Guess the above posts answers that.
So, approximately how much fuel is left in the tank once the light turns on?
So, approximately how much fuel is left in the tank once the light turns on?
#14
Ran my car low yesterday 12 miles til empty, I was in a rush so stopped and only put in $20. Started driving again, No change in gauge or miles til empty warning. I though the gas pump was messed up ?? Stopped at another staion down the road , Left the key on and while gas was filling watched the gauge start to rise and get to where $40 should be. Kind of strange but good to know it happens. Prob wont let it get that low if I can help it.. Adjusting to tuned gas mileage vs stock,, Still made it to my Hot Date in Time LOL......................
#15
There is no problem with any fuel sensors. The AWD in the C4/TTs puts the hog head right underneath the fuel cell up front. The fuel cell is a saddle shape in order to accommodate this piece. There is a fuel pickup on each side of the fuel cell saddle, but only one sensor. This explains why your gauge reads the same amount of fuel. If you don't put in enough to cross over to the other side then the sensor never picks up.