fuel leaking from charcoal canister
#1
fuel leaking from charcoal canister
i just bought a 1996 honda accord 25th anniversary edtion.upon buying it i had to replace the fuel lines and rear brake lines.after replacing these parts car ran great for 2 days.then today the car started running ruff and stalling out. after looking under the hood i relized that fuel was coming out of the charcoal canister tube and running onto the ground.after it stopped leaking (about 30 mins later) i restarted car .it started hard but eventually started.ran fine and drove fine for about 15 mins then started running ruff again and leaking fuel again.was wondering if anyone ever had this prob. before? i am wondering if the charcoal canister went bad or the eltrical switch that is mounted to it is bad but dont know how to check these things.not really familar with these cars as this is the 1st honda i have ever owned.any help would be greatly appricated thanks.
#2
Honda-Tech Member
Re: fuel leaking from charcoal canister
Replace the Charcoal Canister. It shouldn't leak oil or pouring out charcoal(future reference).
The charcoal's job is suppose to absorb the fuel as it comes from the fuel vapor line. When that electrical switch known as a Purge Solenoid purges the system which then draws air from the air vent in the charcoal canister will pick up the fuel from the charcoal back into the Intake Mani to reburn it. By doing this will reduce HC emissions.
Emission class sucks *****. I was soo sleepy in that class. Lol.
The charcoal's job is suppose to absorb the fuel as it comes from the fuel vapor line. When that electrical switch known as a Purge Solenoid purges the system which then draws air from the air vent in the charcoal canister will pick up the fuel from the charcoal back into the Intake Mani to reburn it. By doing this will reduce HC emissions.
Emission class sucks *****. I was soo sleepy in that class. Lol.
#5
Re: fuel leaking from charcoal canister
no im not topping off. this is happening and there is only 1/4 of a tank of gas.i replaced the canister and am still having the same problem. at a total loss now as i have never seen a problem like this before.
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#9
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Re: fuel leaking from charcoal canister
there must be something not hooked up right, nothing but fuel vapor should be going to that canister, no liquid fuel, it's not hooked up to the fuel return line for the FI is it? if it's hooked up right, then it's something is wrong with the two way valve on top of the tank. I'm thinking fuel return line, all of the fuel not used by the injectors is returned to the tank from the fuel rail, I have a 98 with the same setup and it works great, if you can't figure this out i can take pictures of the connections. what fuel lines did you replace?
#10
Honda-Tech Member
Re: fuel leaking from charcoal canister
A tiny amount (a couple of drops) is normal but, not anymore than that. Classic symptom of a bad fuel tank vapor control valve. Don't quote me but, it should be right in front of the fuel tank. Should be round-ish looking.
edit: Upon further review, it's that two-way valve on top of the tank that lostforawhile talked about.
edit: Upon further review, it's that two-way valve on top of the tank that lostforawhile talked about.
#11
Re: fuel leaking from charcoal canister
alot of fuel is coming out,enough to have to put a catch pan under car. i replaced the fuel feed line but the return line is very rusty and prob could use replacing.when i replaced the canister i put everything back the way it was.after trying a few things a loosened the gas cap to help the tank vent and the car starts right up and will idle perfectly,but as soon as you try to drive the car bogs out and sputters almost like a fuel filter is bad.im thinking what you guys are saying aboutthe two way valve sounds like the next place to check.thank you for all of the good info guys!going to drop the tank and see whats going on. will let you know what i find thanks again!
#14
Re: fuel leaking from charcoal canister
I changed my fuel line as well. I am currently experiencing the same issue on a 94 accord. checked all the vacume lines and charcoal canister. But I would really like to know if the two way valve resolved it...
#15
Re: fuel leaking from charcoal canister
Hi there. I had the exact same problem and accidently mixed up return line and vent line. I put lines back and worked fine. You will have to replace your charcoal filter because its saturated and will smell.
#16
Re: fuel leaking from charcoal canister
Hey, I'm having the very same problem with a 1990 Honda Accord. I can drive for 15-20mins then the car tries to shut off and the canister leaks a large amount. Has anyone solved this problem yet?
#20
Re: fuel leaking from charcoal canister
How long is a while, Would that explain bad gas millage. and also since this last post i have had the canister out of the car. Tonight i re-attached it and drove the car for a while.. (i was trying to test the fuel pressure regulator.) But anyways it drove as if nothing was wrong with the car at all.
#21
Re: fuel leaking from charcoal canister
On my fiances 01 Elantra, she kept topping it off (STUPID) and eventually it filled up the charcoal canister. The car would randomly die when coming to a stop, not accelerate, CEL was on, and when fueling the car the pump would keep kicking off while fueling...so it took like 10 minutes to fill up. Replaced the charcoal canister AND cleared the lines.
If the charcoal canister has been saturated there is a good chance that the charcoal pellets have broken up and become lodged in the lines/fuel pump sock (if there is one) and possibly the fuel filter. After getting them all cleared up and a new canister in it, it solved all of the problems.
If the charcoal canister has been saturated there is a good chance that the charcoal pellets have broken up and become lodged in the lines/fuel pump sock (if there is one) and possibly the fuel filter. After getting them all cleared up and a new canister in it, it solved all of the problems.
#23
Re: fuel leaking from charcoal canister
On my fiances 01 Elantra, she kept topping it off (STUPID) and eventually it filled up the charcoal canister. The car would randomly die when coming to a stop, not accelerate, CEL was on, and when fueling the car the pump would keep kicking off while fueling...so it took like 10 minutes to fill up. Replaced the charcoal canister AND cleared the lines.
If the charcoal canister has been saturated there is a good chance that the charcoal pellets have broken up and become lodged in the lines/fuel pump sock (if there is one) and possibly the fuel filter. After getting them all cleared up and a new canister in it, it solved all of the problems.
If the charcoal canister has been saturated there is a good chance that the charcoal pellets have broken up and become lodged in the lines/fuel pump sock (if there is one) and possibly the fuel filter. After getting them all cleared up and a new canister in it, it solved all of the problems.
#24
Re: fuel leaking from charcoal canister
#25
Re: fuel leaking from charcoal canister
i did the first 4 or 5 times ive filled the car. then i found out that its bad to do so.. is the check valve the two way valve bc if it is that what im trying to replace