I am having problems fueling my car. Gas nozzle turns off when tank isn't full. Seems like nozzle has to be held in only one position or it turns. Used to think car had to be parked completely level for tank to fill without a problem. Anyone else have this happen and know what to do about it?
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Re: I am having problems fueling my car. Gas nozzle
This is a typical problem on the G35.
I believe there is a Technical Service Bulletin the outlines the problem. There is a schrader valve that needs to be replaced. Should be under warranty if you haven't exceeded the 70k mile powertrain warranty.
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Try not putting fuel nozzle in so far. Fuel flow cuts off on back pressure of the air being displaced by the fuel when filling. Can be a problem with narrow neck tanks and some fuel fillers are more sensitive than others.
Gas as in gasoline or gas as in LPG gas? If its petrol, the fuel sender may be out of adjustment. (Usually means a new sender) If its LPG, the fuel stations are set to automatically shut off at 80% full. The gas tank will never actually be full to the brim but the gauge should be showing full if the gas nozzle keeps shutting off. Have a look on the LPG tank itself, they have a little gauge on them which shows how full it is. I have 2 tanks on my car , when "full" or when the pump shuts down, the tank gauges show just under full but the gauge on the cars dash shows full (2005 BA Ford)
Gas pump nozzles have a device in the end that when gasoline runs back up into it, it turns off the fuel flow."
There's a tiny hole near the bottom of the gas pump nozzle connected to a small tube.
Normally, air flows through that tube while you're filling and the gas keeps flowing as long as you hold down on the trigger. When that hole gets covered by gasoline (when your tank is full), a vacuum forms inside the nozzle and an automatic shutoff switch gets tripped, turning off the flow of gas with a thunk. Next time your fueling up try to reposition the nozzle.
The gas guage has a sending unit in the tank attached to the pump, there is a small circuit board on it that has smal"fingers" that send the signal to the guage.These get worn off and thus sends a false reading to the gas guage in the dash. The gas tank must be removed and a new unit put in to solve the problem. I had to do this repair to mine. As for the gas issue, just try pulling the nozzle back out of the filler neck when putting gas in, sometimes the overflow tube gets plugged up and won't allow the air to escape as the gas goes in the tank, making the gas pump think the car is full, pulling the nozzle will allow the air to escape. Hope this helps.
Sorry if this gets posted twice. I have a 95 Saab 900, which I just acquired. I can get only about 4 or 5 gallons in at a time. The best analysis I found was this one where the man pinpoints a stuck valve in the gas tank, and tells of what he did to address it.: http://www.quasimotors.com/9_5_gas_fill_prob.htm
I have had this problem. For me it's usually when the tank is really empty. I worked at a gas station and at times, I'd have to replace the gas nozzles when they wouldn't kick off correctly.. I suspect the problem is that the gas nozzle is picking up more gasoline fumes that are being displaced in the tank and venting thru the fuel filler opening. The gas nozzle detects enough gasoline vapors with it's sensor to shut-off the nozzle. One can slightly adjust the nozzle in the fuel filler opening (or wait a few additional seconds giving time for the fuel vapors to exit the fuel tank)) and it works great.. I do not believe it is a problem with the Blazer. It's a combination of the gas nozzle and the amount of vapor escaping the filler opening with the displacement of vapor in the gas tank. I've had this happen in my Ford Contour.
I hope this helps others.
hi from uk are you putting the fuel pump gun/nozzle fully into tank filler? as there is a flap valve inside the tank filler neck and unless nozzle pushes this flap open it will restrict flow of fuel into tank one other cause of problem slow filling? is the ventilation pipe from the tank which is positiond along side of fill pipe ? may be kinked or blocked at outlet look under car where filler is and check? as fuel enters tank it displaces air from tank via this vent pipe? hope this helps you solve problem