Sonata NF (2006-10) :: CEL Came On With P0455 Code / Large Vapor Leak In Fuel Assembly
May 19, 2011
I have an 06 sonata 2.4l--last week the CEL came on so I took it to my mechanic and he said it was p0455 which is a large vapor leak in fuel assembly. We tried tightening the gas cap and resetting the code with a scanner but it came back on a day or two later. I have never overfilled my tank and i do not smell gas anywhere. the only real symptom (maybe non related)is my speedometer , it works but it is just a little slow to react when increasing or decreasing speed.---my gas mileage seems to be normal.We got under the car and looked around and couldn't notice any obvious tears in any lines -- should i try buying a new gas cap?--I was thinking it may be speed sensor but my mechanic said if it was the speed sensor , my tranny should be shifting funny , my trans shifts fine. I am at a loss and don't want to have to go to dealer with this.
View 12 Replies
Advertisement
Check light came on and I had the code read at AutoZone. There were 3 codes but I'm pretty sure 2 are old (the check light previously came on a couple of months ago and I had it checked, then went off on its own). My car seems to be driving fine.
The new one is P0455. Large EVAP leak. I'm hoping it is just my gas cap.
The other 2 (older) codes are P0456 (small leak) and P0113 (IAT error).
View 8 Replies
I own a 98 f-150 5.4 with 70,000 miles. I get a check engine light (code p0455-large leak detected in evaporative emission control system).
Replaced the gas cap with an after market 'stant' ( I believe was the manufacturer) brand. The check engine light went away for 4 days then came on again.
No obvious vacuum line leaks.... Puzzled.
View 14 Replies
I keep getting this code even after fixing hoses with leaks. I am guilty of over filling my gas tank all the time can this have damaged the vapor canister on my 2001 dodge caravan....
View 7 Replies
I just joined the forum mainly to care of my dads 2001 Hyundai Santa Fe but also I got a check engine light on my way home from work last night.
From last night I saw that oil was all over the timing belt. Today I inspected it with a Coworker and his OBD II reader.
Error Code was P0455, EVAP - Evaporative Emission Control System Leak Detected (gross leak).
Now the oil leak is stronger since the oil spills is on hood (inside hood). I will make a picture tonight when I get home.
I personal think it's leaking from a tube/ valve on top of the timing belt (picture will show more tonight). Thinking of cleaning the timing belt area, then drive a little around or leave it in idle to spot where the leak is from.
Common issue? I googled around but since P0455 is a common issue (on my 9-2x as well) I couldn't find anything about this I am also limited from my search since I am currently at my work PC incl. strong firewall.
I will see if google let me find a picture...
View 3 Replies
Car has about 75K miles. Son has the car out of town (again), at school. He reported CEL (SES?) light on; "what should I do?" Told him to have it checked. He has trusted mechanic nearby, so I told him to go there. They say they don't just read codes ("You can get Autozone to do that"); they do diagnosis.
Report: Code P0455 (gross evap leak). Did smoke test; nothing. "Did you maybe have it running when you filled gas tank?" (No.) They reset the CEL, and sent him on his way.
Should we be satisfied if CEL stays off? What else to try or to look for if same code comes back?
View 5 Replies
New owner of a 2003 1.8TPassat (29,000mi) as of the last 2 weeks and have just had my MIL come on. Scanned it at home with my Actron CP9125 scanner and got this code (P0455) which reads in the scanners manual as "EVAP Emission Control System Leak (Large)". Didn't know if this was a generic description of the code or VW has a more specific definition. What precisely this is in reference to, gas cap, vacuum hose????? Or what VW's actual description of this code is?
View 3 Replies
2001 Sport trac, we are throwing a large leak evap code. The check fuel cap light came on and went out after replacing the cap, but we are still getting the code. Is there a known problem area to look at or is it a job for the smoke machine?
View 2 Replies
I have a 2006 Pontiac Montana SV6 with 80,000 miles on it. Recently the dashboard warning "check gas cap" has started coming on. I have replaced the gas cap and cleared the code and it is doing it again. It seems like it is more likely to do it when the gas tank is 1/2 or less full but it also did it today with almost a full tank. The code from the computer said P0455, what this could be?
View 7 Replies
Got 2006 Explorer back fron trans rebuild and probably unrelated but started getting P1405 (Large vacuum leak) and alternating "replace gas cap" errors. When I installed a new gas cap, error went from large vacuum leak -which I checked for on engine and found none using smoke test- to loose gas cap. So next, I changed the emission system valve which is right up front on rt. side of engine looking into engine bay. Now, error has returned to large vacuum leak. So new gas cap and valve. Error does not come back immediately after clearing. Takes about a week and then either get SES light and large vacuum leak error or just picture of gas cap on dash error. Note that when I remove gas cap, I no longer hear the "whooosh" of releasing a vacuum. Assume now it is in back by spare tire where I need to be looking. I note on emission valve that there is a schrader valve for testing vacuum....
View 6 Replies
My 2007 Sonata continues to throw a P0456 code, small evap leak detected, gas cap is tight, getting ready to check the evap hoses. The question I have is the evap system covered under the emissions warranty at all ?
View 4 Replies
2008 with 165K. I had the fuel pump replaced then started getting this code. Garage said they did a smoke test could not find any leak. I then replaced this part (CCV #31453-3K500 / picture attached) I still get the code.
View 2 Replies
2009, 89K miles ... As title states, check engine light came on today and after the codes were pulled, I got P0496. It was referred to as "Large EVAP system detected". I'm guessing this may have something to do with the fuel vapor management system but not sure what's a sure bet to check.
View 6 Replies
I have a 2006 Sonata with 88,000 miles on it. Currently, and for the past 11 months, the CEL has been on and the code always returned is a p0456, very small evap leak.
I searched for leaks but couldn't find any. I also replaced the purge control valve, but the same p0456 continues to reappear. Of course I also made sure the gas cap was on tight.
I received a coupon from the dealer for a free diagnostic so I took the car in.
The dealer reported the code as p0455, large evap leak, and said the cause was a cracked fuel pump housing. Cost to repair $850. Seems to me the dealer just picked the most costly part to replace, although I can confirm they looked at it because they forgot to screw the access cover back on.
So what I would like to know is how the dealer would have made such a diagnosis? I cleaned and inspected the outside of the pump and saw no crack, but I also understand that the crack may be too small see.
I want to be able to confirm that the dealer's diagnosis is correct, but how can I do that? I have a hand operated vacuum pump and access to shop air to aid in the diagnosis.
I read elsewhere on this site about pressurizing the system and putting soapy water on the area to show bubbles where the leak is, but where would I connect the air hose? And more importantly, what is a safe pressure to use?
Of course tracking down the cause of p0456. I know the charcoal canister could be problem as well, but I'd like to find some way of isolating down the failing component.
View 9 Replies
CEL came on after a couple of driving cycles showing code P0456 (evap emission control system very small leak detected)............. car drives fine has good gas mileage.....
View 13 Replies
During recent trip to WITW 2011, I started smelling fuel vapor after stopping and getting out of the car. The smell was easily noticeable near right rear wheel which is obviously at the fuel filler door and neck.
Also, at one time the fuel level showed tank 3/4 full, but after filling it up I discovered that it was nearly empty with appx. 3 Gallons left. After filling the car back up to full, the fuel level went back up showing full, however the fuel vapor odor stayed the same on the way back home.
I have scanned the car and no codes.
Inspected under the car for fuel leaks and found none.
Removed access cover over fuel pump under rt rear seat and did not see any signs of leaks.
Removed rt quarter liner to visually inspect, but did not see anything unusual.
Which component could cause vapors to escape if faulty? R32 now has 31k on it.
I searched and read about possibly faulty fuel sending unit causing faulty fuel level reading, so I will be checking that next. However, no mention about fuel vapor problems.
View 24 Replies
I am done with this swap (I hope) changed out the 302 in my 81 van for a 351. The only smog spaghetti I am keeping is the fuel vapor canister but I am unsure what the #1 line in the photo is for I have the manual but doesn't state what it does my research suggests its a fuel vapor return line from the carb bowl back to the canister ...... I now have an edlebrock carb obviously w/o this port so my question is
#1 where would you reconnect this "whatever it is" line on carb or manifold
#2 I am going to install that #3 fitting in photo on the edlebrock manifold at the same location & extend #2 hose to it. I am thinking that's ok...
View 1 Replies
I have a 1998 Honda Accord, automatic with 179,000 miles. The malfunction indicator light came on so I had the car smoked and found that it needed a purge valve. I replaced the purge valve and smoked the car again which indicated the car still has a vapor leak and the malfunction light stayed on. The only place visible smoke is coming from is from the fuel filler neck (place where fuel or gas is put into the car) when the gas cap is off. Where the leak may be? My car is also getting horrible gas mileage. I was going to replace the fuel filter but I heard it was in the gas tank, is this right and is it replaceable? Would replacing the gas cap work for either the vapor leak or gas mileage?
View 8 Replies
2006 2.0t 82k on the clock....
Just got back from a round trip to HHI; 11 hrs one way. When I stopped to fill it up on the way back, went to start the car and it would crank but not fire. I let it sit and tried again, same result. I then tried to start while feathering the gas pedal and got it to start. No CEL, seemed to be functioning normally after that.
Monday I'm heading into work, pull up to a stop light about a mile from my house; while stopped, the engine lurches, not violently, but lurches and the CEL comes on. Haven't had time to take it to my shop, no VAG, I'm filling up today, same thing...won't start without feathering the throttle. Took it to O'Reilley's and borrowed their CAN and it pulled the P0455 code. The guy behind the counter "looked it up" and said that I needed a new gas cap due to the EVAP system leak portion of the code.
Next Thursday I'm dropping my car off at the dealer to have the PCV update taken care of on VWOA's dime (Service called me out of the blue and said my car was on the list for the update.) From what little research I've done, some had success with the new PCV, some had success with the cam follower replacement (mine is still original and I haven't checked it yet), and some have had success with replacing the regulator valve/breather kit.
View 2 Replies
2004 XC90 T6. Local Volvo dealer (Bangkok at the time) said my check engine light was due to the O2 sensors going bad. I changed out the one under the car, then my wife threw out (accident) the other so I didn't change the one accessible from the hood. The check engine light went away so I figured that was that.
Fast forward a year later, I buy an Autel Maxiscan MS509 and now I'm getting check engine code P0455 which is probably the O2 sensors I didn't replace. Other than deductive reasoning, is there some way to look at the data on my OBD reader to confirm which O2 sensor is bad?
View 4 Replies
Yesterday from the smart center of Rochester, MN I bought a 2013 Smart fortwo Pure with 19k miles. This evening the Check Engine Light came on and it is code P0455.
No other dash lights are on and I have not even touched the gas cap yet. Should I clear the code? Take it to the dealer? Tow it to the dealer?
View 7 Replies
