I can only fill my gas tank half way, roughly 35$ CDN. After it reaches this point it gets air locked and clicks off, I can force a bit more in but it takes a lot of time due to it getting air locked. Any suggestions? Maybe a air intake line or vent I can check? Thanks
xnewman69x
Neither your profile nor your thread info indicates which year and model your RAV is. If you provide that info it may make solving the problem easier for forum detectives.
Could you please provide a little more info - what year and model, what level of gas you're starting with before you fill, etc. Does your gauge only read at 1/2 once you've put gas in? It's possible you've got some kind of obstruction in the neck or the tank, but not likely. Might not be a bad idea to eyeball inside the filler neck and see if you can see anything. If the neck is accessible on your RAV, you may be able to reach and give it a squeeze to see if you can feel an obstruction. That said, you may be looking at dropping the tank in the worst case. The big thing though is answering the questions about level before fill, and what the gauge says after. Some systems are a little finnicky when filling the upper portion of the tank. How long have you experienced this problem?
When the gas indicator light comes on, you have 10L in the tank.
Assuming the price of gas is $1.20, putting $35 means 29L of gas.
So in all, your tank is holding 39L instead of about 60L
Have you ever tried to run it dry and then fill up? Carry a gallon of gas with you until it dies, then use the gallon of gas to drive to next gas station and fill to the max and see if there is any change.
....
Or are you saying that after it runs dry, you can 29L (less than 50% tank capacity) of gas at the most?
I also have to ask if this issue started to happen to gradually or may be you bought a RAV whose gas tank was replaced with a smaller one and that you always had this issue?
Assuming the price of gas is $1.20, putting $35 means 29L of gas.
So in all, your tank is holding 39L instead of about 60L
Have you ever tried to run it dry and then fill up? Carry a gallon of gas with you until it dies, then use the gallon of gas to drive to next gas station and fill to the max and see if there is any change.
....
Or are you saying that after it runs dry, you can 29L (less than 50% tank capacity) of gas at the most?
I also have to ask if this issue started to happen to gradually or may be you bought a RAV whose gas tank was replaced with a smaller one and that you always had this issue?
www.youtube.com/watch?v=TAJPPnLZN0k&feature=youtu.be
here is a video of me fueling up, so you can see the issue, was almost on empty
here is a video of me fueling up, so you can see the issue, was almost on empty
Doesn't work.
Look for a bashed in gas tank reducing capacity.
If that looks OK, try carrying a gallon or two of gasoline. Run 240 miles or more without gassing up, unless you run out of gas. That should tell you if the problem is the gauge system or the tank is really not accepting a normal load of gas.
From the video, it seems like you filled up the whole filler neck. I would follow Carbon's suggestion.
Have a look at the attached PDF file. This is from the 2006 repair manual, but the theory of operation applies to your model as well.
As gas enters the tank through the filler pipe, the air trapped in the tank above the fuel starts to get compressed. If the air had no way to escape, the pressure would become high enough to prevent any additional gas flowing down the filler pipe. As soon as the gas nozzle detects fuel rising higher than the end of the nozzle it is designed to shut off the gas flow.
The purge valve shown on the diagram is only open when the engine is running. It allows the gas vapors in the tank to be drawn into the intake manifold and burned. I don't believe it plays a role when refueling.
The small tube that runs alongside the filler pipe is designed to provide the required escape of air. From what I can understand, the tube is not placed in the highest point in the tank, but rather at a lower level which is chosen so that it becomes blocked with fuel as the level reaches nearly full. Once the tube is blocked a few more liters of fuel can be added before the pressure builds and fuel will rise in the filler pipe and shut off the nozzle.
Since the gas cap forms a tight seal on the filler neck, there is no concern that this vent tube will leak fuel vapors into the atmosphere.
I suggest you examine this tube for any kinks that may be restricting air from escaping. Also examine the opening of this tube in the filler neck to see if anything may be blocking it. Perhaps the little flap in the filler neck is covering the opening when you insert the nozzle, or you are positioning the nozzle so that it blocks the opening.
If I understand correctly, the purge valve will open when the engine is running and release some of the pressure trapped in the tank. In theory you should be able to add several more liters of fuel after driving a short distance.
As gas enters the tank through the filler pipe, the air trapped in the tank above the fuel starts to get compressed. If the air had no way to escape, the pressure would become high enough to prevent any additional gas flowing down the filler pipe. As soon as the gas nozzle detects fuel rising higher than the end of the nozzle it is designed to shut off the gas flow.
The purge valve shown on the diagram is only open when the engine is running. It allows the gas vapors in the tank to be drawn into the intake manifold and burned. I don't believe it plays a role when refueling.
The small tube that runs alongside the filler pipe is designed to provide the required escape of air. From what I can understand, the tube is not placed in the highest point in the tank, but rather at a lower level which is chosen so that it becomes blocked with fuel as the level reaches nearly full. Once the tube is blocked a few more liters of fuel can be added before the pressure builds and fuel will rise in the filler pipe and shut off the nozzle.
Since the gas cap forms a tight seal on the filler neck, there is no concern that this vent tube will leak fuel vapors into the atmosphere.
I suggest you examine this tube for any kinks that may be restricting air from escaping. Also examine the opening of this tube in the filler neck to see if anything may be blocking it. Perhaps the little flap in the filler neck is covering the opening when you insert the nozzle, or you are positioning the nozzle so that it blocks the opening.
If I understand correctly, the purge valve will open when the engine is running and release some of the pressure trapped in the tank. In theory you should be able to add several more liters of fuel after driving a short distance.
I suggest you take off the rear wheel liner just under the gas cap and may be the rear wheel too. From there it will be easy for you to investigate.
I suppose that if your RAV has been serviced recently a misplaced jack or hoist pad could have damaged the tube. Since I don't have the same generation RAV I can't suggest exactly where you will find this tube, other than it probably follows the filler pipe.
EDIT:I wonder if you could find a length of rubber or vinyl tubing that would fit snugly into the hole at the side of the filler neck. You could try blowing air into the tube and see if you can hear the sound of bubbles from the filler pipe.
EDIT:I wonder if you could find a length of rubber or vinyl tubing that would fit snugly into the hole at the side of the filler neck. You could try blowing air into the tube and see if you can hear the sound of bubbles from the filler pipe.
I have 2012 RAV4 no problems til I got a lube n oil @Midas. They didn't change the main reqd. Lite on dash but I wasn't too concerned, however I was empty so I went to fill up and it only took 13 gallons. Normally 20. It read over F on dash. I thought strange but it was late Saturday afternoon, Sunday I didn't drive but 5 miles residential. But Monday did traffic 40 miles sounded like 2 gear. Yesterday my engine light, the 4wD light and Trac Off lights went on.
I have a great warrantee but only on engine issues - what you say this is engine problem ?
I have a great warrantee but only on engine issues - what you say this is engine problem ?
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