Question about 2003 Hyundai Accent
The dealership told my husband it could be a valve leading to the charcoal cannister that is causing the problem with fuel not going in properly when adding gas, it constantly shuts off. Where is this valve and can my husband fix it it himself?
I would start simple on this, depending on how many miles the vehicle has it could be a full fuel filter not allowing fuel through properly. A new filter should cost about $10 and is pretty simple to change. On the accents they are below the rear seat. Lift the rear seat up and it is right there. To relieve pressure open up the gas tank cap and leave it open. You can also pull the fuse for the fuel pump, start the car and let the car die. Bring some rags, and wear yellow gloves because there will be a slight amount of spillage. When taking the old filter out, make sure and note the top from the bottom and how it mounts in there. Put the new one in and make sure and clip the tiny connector back in. Also what I would suggest is AMOCO complete fuel system cleaner, running that through maybe a time or two. It is possible you have a bad valve somewhere but these simple things may cure your problem as well. Hope this helps.
Posted on Feb 15, 2009
In the feed pipe behind the plastic wheel arch trim,just take it out and join it up with a bit of rubber pipe
Posted on Feb 01, 2009
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Posted on Jan 02, 2017
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I have 2002 Hyundai Accent. When fueling, I had to trickle the fuel in to prevent the fuel dispenser from constantly shutting off. Even then I could only get about a quarter gallon at a time between fuel shutoffs. Would take 10-15 minutes to put in 10 gallons. Very frustrating. I found and fixed the problem today. There is a charcoal cannister that is part of the Evaporative Emissions control system. It is located inside the rear fender well on the driver side, behind the driver side rear tire. You cant miss it. Actually looks like a square plastic box and it has hoses coming out of it. I removed the entire charcoal cannister assembly in about 15 minutes. Follow carefully. First, remove the electrical connector to the purge control valve (this valve assemby is mounted to the side of the charoal cannister on a bracket). No big deal. Then disconnect the three hoses that come out from the cannister assembly on the one side that faces the rear tire. Two of these hoses are small diameter about 1/4" and one is larger at about 5/8 inch diameter. Then you remove the 3 bolts that hold the whole cannister to the car frame. Then the whole piece comes out. Once I got the cannister and purge control valve out of the car as a whole assy I found the problem. The larger of the 3 hoses you disconnected as well as the port it connects to on the cannister was packed with the small charcoal pellets and actually formed a solid plug inside that larger hose. I had to stick a screw driver through that hose to knock the plug out that those charcoal pellets had formed. It all makes sense now. When you fill the tank with gas, you also push out air and vapor from the gas tank that is being displaced by the rising fuel in the tank. That vapor is supposed to go through that larger hose to the charcoal cannister where the fumes are removed by the charcoal. If that hose is plugged, like mine was, then the vapor has nowhere to go as you fill the tank and it increases pressure within the tank it causes the fuel dispenser nozzle to shutoff because it keeps detecting a pressure increase within the tank. That's my theory. I don't have the Hyundai design prints to confirm it. I had to tilt the charcoal dispenser so that the pellets came out of that larger hose port on the cannister. Like I said, even the port itself was full of pellets. So I poured out enough to clear the pellets that were in the hose port. I cleaned out the hose. Put everything back and went to go fill with gas. I filled that tank at full bore with no problem. Have the dealer or your mechanic check the ports and the hoses off the cannister. If they are filled with charcoal pellets, that is the problem. That should cost less than some of the fixes I have been reading about here.
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