The last two times I tried to fillup..........the pump kept cutting off / on.............I asked the attendant if the fuel tanks were empty.........he said no...something is wrong with my gas tank? Help!
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Re: Gas Tank Float causes stoppage during fueling
Change the gas o grade . .. did you change anytime the fuel filter . maybe is clog,. also when you upgrade the gas, way until the thank is empty . when you fill up . dont give wrong but put some transsmicion oil in the gas tank about 2'o3 Tblspoons that helps the fuel pump
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Note the odometer reading. Fill the tank completely. Drive for 500-2000 km, refilling the tank as necessary, and recording exactly how much fuel is required each time to refill. At the end of the test, refill the tank one last time - recording how much fuel it required - and note the odometer reading again.
Add up all the fuel used in the entire test, NOT including the first fillup but INCLUDING the last one. The result is the fuel consumed during this test.
Subtract your starting odometer reading from your ending odometer reading. The result is the exact number of km traveled during this test.
Divide the number of km by the number of liters (km/l) to get your average fuel efficiency.
Chrysler and Dodge have a fuel vapor filter that allows air out of the gas tank but filters the harmful fumes. Usually the problem happens from topping off your gas after the gas pump stops due to the automatic shut off and then putting more gas in the tank (to make the bill an even $50. or to the next $5 increment, or pumping more in just because it fits). Anyway the filter gets saturated with gas, is not able to breath, and causes a vacuum in the tank. Because of this, the anti-siphon ball is not able to float around and sits at the opening of the fuel fill tube and won't allow any more gas to be put in (acts like the car is full). If you pump super duper slow like put a nickel to hold the gas pump handle, it will trickle in without a problem, but it takes forever! Solution, get the filter replaced and don't over fill the tank.
By gas light I am assuming you are talking about your gas gauge that tells you how much gas you have. This is probably your fuel pump level sensor. The fuel pump has a float mounted on the sending unit which floats to the top of your tank when it's full and gradually decends into the tank as you use up your gas. Most commonly, the float builds up residue that in your tank which causes it to stick in one place which can explain why it's cutting off at a 1/4 tank. I hope this helps you solve the problem.
If you did not have that problem before you changed the pump, I'd definitely take a look at that first, though the way the pump is designed, I can't see why that would happen...Most problems are with the tank float not reading correctly. One possibility is that the pump is defective...they are kept cool by the fuel in the tank...at half full, if pump is marginal, it may be overheating and shutting down.
There is a filter on the tank vent that is plugged. It is not letting the air escape from the tank during fillup causing positive pressure which will will shut off the gas pump. I don't know where it is on your model but some are under the back behind the fuel tank. It is usually a 6" square plastic box with a hose on it and louvers on the sides.