Rich Posted February 27, 2012 Report Share Posted February 27, 2012 I've had this happen a few times on different cars so it must be the pumps but why do some of them when you hold the nozzle down it keeps clicking off? Happened to me yesterday and I had to gently squeeze it and it took ages to fill. I tried removing it and moving it around but it was in the filler properly. Normally it doesn't bother me as I just stick £10-£20 in but as I'm trying to work out my MPG from every tank I'm filling it everytime. So this obviously meant it wouldn't click off when it was full, I had to guess when to stop before it overfilled! Quote Link to comment Share on other sites More sharing options...
Bazza Posted February 27, 2012 Report Share Posted February 27, 2012 this used to happen on the Lexus, so may be a Toyota thing try holding the nozzle at a 45 degree angle or experiment with angles until you find one that allows it to stop cutting out Quote Link to comment Share on other sites More sharing options...
Tony Posted February 27, 2012 Report Share Posted February 27, 2012 On my Vectra there's a flap in the fill pipe the nozzle pushes open. If the nozzle doesn't fully open the flap then the pump cuts out, maybe it's the same thing for you? Quote Link to comment Share on other sites More sharing options...
Rich Posted February 27, 2012 Author Report Share Posted February 27, 2012 It's the first time it's happened since I've had the car but I'll try a different angle next time. This is only the 3rd time I've used Tesco Momentum though, normally I go to Shell, so maybe it's their pumps. I have noticed when I remove the cap there's a green rubber grommet on the entrance that only allows the nozzle to go in so far. I'm not sure if this is suppose to be there though but maybe that's causing the problem. Quote Link to comment Share on other sites More sharing options...
liner33 Posted February 27, 2012 Report Share Posted February 27, 2012 check the vent pipe is not blocked Quote Link to comment Share on other sites More sharing options...
Rich Posted February 27, 2012 Author Report Share Posted February 27, 2012 check the vent pipe is not blocked Where would that be? Quote Link to comment Share on other sites More sharing options...
Tango Posted February 27, 2012 Report Share Posted February 27, 2012 I find it varies depending on the speed/efficiency of the pump. When the flowrate is high the air in the tank cannot be expelled fast enough so the back pressure valve cuts of the flow. I find the pumps that have a slower delivery don't give me a problem, and the same if you do not pull in the handle all the way, but angling the nozzle to allow air to escape past the nozzle can help. Re. vent pipes, usually there is a vent pipe linking from the top of the tank with a pipe that is just on the lower side of the filler cap pipe going into the filler line.That way any excess air pressure during fuelling vents out through the open filler cap - which must be open to permit fuelling !! If you do not have such a vent you will get lots of fuel filling shut offs and blowbacks out of the filler neck. Some filler caps are vented and some tanks have vents to allow pressure to escape when the tank is sealed, but these are one way only i.e. allow air in but not allow fuel (or air) out, so do not help with the problem described. Quote Link to comment Share on other sites More sharing options...
parthiban Posted February 27, 2012 Report Share Posted February 27, 2012 As above, could be a Toyota thing as I've had the same problem with the Lexus in the past and from LOC it was a widely reported problem - having said that it hasn't bothered me for several years so whether pumps have changed since then I'm not really sure. When it used to be an issue I found turning the pump 45-90 degrees as mentioned sorted it, or as Tango said pull the pump out slightly. Quote Link to comment Share on other sites More sharing options...
Rich Posted February 27, 2012 Author Report Share Posted February 27, 2012 Thanks for the info/tips I will try next time I fill up. I'll chuck a post up on the Corolla forum and see if others have any issues. Quote Link to comment Share on other sites More sharing options...
liner33 Posted February 27, 2012 Report Share Posted February 27, 2012 On the filler pipe usually just inside the cap , run a piece of welding wire or suchlike down it and check underneath the car thats its not damaged or corroded Here is a pic of my old Evo one , you can see the vent pipe ir runs along side the main filler pipe Quote Link to comment Share on other sites More sharing options...
Rich Posted February 28, 2012 Author Report Share Posted February 28, 2012 Cheers, I'll take a look on mine. Quote Link to comment Share on other sites More sharing options...
Rich Posted March 29, 2012 Author Report Share Posted March 29, 2012 Filled up today at Shell and had no problems at all. I haven't had time to check the filler pipe yet but will do that when I fit me rear brakes so have the wheels off. Quote Link to comment Share on other sites More sharing options...
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