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Discussion Starter #1
Keep getting P0455 and today seen radiator fluid on ground today. There is a hose on the side of reserve or where you put anti freeze in and there is a hose not connected to nothing hanging over spilling out anti freeze. Then radiator light flicker then I top off and fine. But nothing is fine when you see i hose spilling out anti freeze. Can code p0455 be something to do with that. Seems to be connected. Anyways have to get that fixed. Hose is only spills out where it heats up and spills out of hole in top when it over flows. That hose on top of reserve. The hole that connects to top of it there are 3 hoses. Any ideas what thats for and can it cause that codes. Read somewhere it can be but asking you guys tyvm. Spilled out when I was filling up again and when got to top there is a hole and when it got to top the small hose on top spilled over into a hose connected to nothing that hose. Ty
 

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P0455 is not related to the engine coolant. It indicates a leak in the evaporative emissions system. It could be a hose disconnected or damaged, a valve stuck, or a loose gas cap.

There is a hose from the top of the expansion chamber that is the overflow, and is the only one that is not connected at both ends. If your system is over-filled coolant will spill out of that hose when the engine gets hot. Check the level when the engine is cold, and it should be at or slightly below the seam in the middle of the expansion tank. If you fill the tank above that when the engine is cold it will overflow when it is hot.

NEVER open the tank cap when the engine is hot. ALWAYS wait for it to cool down.

If you are getting a low coolant light there is a leak somewhere, and a common place for that leak is the water pump. If that is leaking you will have to replace it.
 

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Discussion Starter #4
Ok John tyvm what is wrong with radiator then it spills out the hose then radiator light starts to blink indicated that low on fluid. When I top off light goes off. Never got above 220 degrees. Why is it spilling out?
 

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You could have a bad coolant level switch if the coolant is at the seam when the engine is cold and you get a warning light.
 

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You could have a bad coolant level switch if the coolant is at the seam when the engine is cold and you get a warning light.
Could the evap code P0455 have anything to do with P0420. I am getting new cat installed in 2 days?
 

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You could have a bad coolant level switch if the coolant is at the seam when the engine is cold and you get a warning light.
Could the evap code P0455 have anything to do with P0420. I am getting new cat installed in 2 days?
And after I found puddle of anti frezze after tuning off car that is when light blinked so its a level I will get it looked at tyvm.
 

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Could the evap code P0455 have anything to do with P0420. I am getting new cat installed in 2 days?
I don't see how. The catalytic converter is in the exhaust, and the evap code is more or less for air leaking into the fuel tank.
Ok tyvm just another problem. I take the car to the shop on 11th for cat heat shield turn signal switch now also have to deal with the evap and coolant. What a cost this will be.
 

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Could the evap code P0455 have anything to do with P0420. I am getting new cat installed in 2 days?
I don't see how. The catalytic converter is in the exhaust, and the evap code is more or less for air leaking into the fuel tank.
Ok tyvm just another problem. I take the car to the shop on 11th for cat heat shield turn signal switch now also have to deal with the evap and coolant. What a cost this will be.
Ok tyvm will get it looked at when at the shop. About a month ago had purge canister fixed maybe they forgot to put hose on right. The purge did fail on my OBD11 scanner so problly a problem there. So can it be with purge system? I did change my gas cap did not reset heard it can off on its own after 16 drive cycles. Hope that will help. Don't want to reset sensors again because going in shop tomorrow and want them to see what sensors are saying. Tyvm for advice.
 

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Could the evap code P0455 have anything to do with P0420. I am getting new cat installed in 2 days?
I don't see how. The catalytic converter is in the exhaust, and the evap code is more or less for air leaking into the fuel tank.
Ok tyvm just another problem. I take the car to the shop on 11th for cat heat shield turn signal switch now also have to deal with the evap and coolant. What a cost this will be.
Ok tyvm will get it looked at when at the shop. About a month ago had purge canister fixed maybe they forgot to put hose on right. The purge did fail on my OBD11 scanner so problly a problem there. So can it be with purge system? I did change my gas cap did not reset heard it can off on its own after 16 drive cycles. Hope that will help. Don't want to reset sensors again because going in shop tomorrow and want them to see what sensors are saying. Tyvm for advice.
Just had fixed
 

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Yes, the P0455 could be caused by a problem with the purge system, especially a loose hose. How much did you drive between having the evap canister replaced and getting the P0455?

As near as I can tell you are looking at three completely independent problems since there is only one thing that connects the catalytic converter, the fuel system, and the coolant system.

There is a small chance that you have a problem with the ECM, but I do not think it likely.
 

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Yes, the P0455 could be caused by a problem with the purge system, especially a loose hose. How much did you drive between having the evap canister replaced and getting the P0455?

As near as I can tell you are looking at three completely independent problems since there is only one thing that connects the catalytic converter, the fuel system, and the coolant system.

There is a small chance that you have a problem with the ECM, but I do not think it likely.
Only drove maybe a few 100 miles if even that.
Not very long he says replaced canister on bill. Here is what is said fixed on OBD reader. And like I says on bill vapor canister solenoid. And intercooler and Fuel tank filler pipe. Could it have to do with any of that?
 

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What I see on that screenshot is a list of things that could cause this fault, not any indication of something that was actually fixed.

The solenoid, canister, or filler pipe could all be at fault if a connection was not made correctly or has come loose.

The test for this problem only runs when the engine is started cold, and will not run if the fuel tank is completely full. In only 100 miles you may have only run the test once, so the original problem may not have been fixed. I think you should find out how they verified that they fixed it the first time.
 

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Discussion Starter #15
What I see on that screenshot is a list of things that could cause this fault, not any indication of something that was actually fixed.

The solenoid, canister, or filler pipe could all be at fault if a connection was not made correctly or has come loose.

The test for this problem only runs when the engine is started cold, and will not run if the fuel tank is completely full. In only 100 miles you may have only run the test once, so the original problem may not have been fixed. I think you should find out how they verified that they fixed it the first time.
Ok tyvm I am taking it in tomorrow. So will explain what is happening and what was done so maybe they can figure it out easier. If not will let them run there test and tell me for sure what it is and how much it will be to fix. I thank you Jonh for all your help and fast answers.
 

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What I see on that screenshot is a list of things that could cause this fault, not any indication of something that was actually fixed.

The solenoid, canister, or filler pipe could all be at fault if a connection was not made correctly or has come loose.

The test for this problem only runs when the engine is started cold, and will not run if the fuel tank is completely full. In only 100 miles you may have only run the test once, so the original problem may not have been fixed. I think you should find out how they verified that they fixed it the first time.
Ok tyvm I am taking it in tomorrow. So will explain what is happening and what was done so maybe they can figure it out easier. If not will let them run there test and tell me for sure what it is and how much it will be to fix. I thank you Jonh for all your help and fast answers.
There was a P0466 code they fixed as the solenoid problem. So maybe they thought they fixed cause cleared that code.
 

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They did smoke test today and said found nothing. So asked them to check purge valve do to they found nothing else. So I told them to just leave it as then. They can't figure out problem without costing me a butt load. I don't get good gas millage as is so guees it will stay that way.
 

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Can I get to the purge canister through the trunk? Seen tread talking about this would not let me add or post on it. These are pics guy sent about it. But I don't think my trunk looks like that. Is it possible to cut into plastic in trunk in pictures and fix also what he wrote. Just thinking about replacing due to code in this post and there was no evap leak. So has to be purge level or contol valve or solenoid. Solenoid was repaced for P0466 think thats code. That code went away after he did now again have P0455 evap test done and was told no evap leak. He preformed smoke test and said there was no leaks. So what could it be since no leak in evap system and still have p0455. And yes replaced gas cap. Tyvm
 

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Can I get to the purge canister through the trunk? Seen tread talking about this would not let me add or post on it. These are pics guy sent about it. But I don't think my trunk looks like that. Is it possible to cut into plastic in trunk in pictures and fix also what he wrote. Just thinking about replacing due to code in this post and there was no evap leak. So has to be purge level or contol valve or solenoid. Solenoid was repaced for P0466 think thats code. That code went away after he did now again have P0455 evap test done and was told no evap leak. He preformed smoke test and said there was no leaks. So what could it be since no leak in evap system and still have p0455. And yes replaced gas cap. Tyvm
What can it be if passed smoke test?
 

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Well did need converter put on Magnaflow free flow. Nice. He did smoke test says no leaks. And he ran it 2 times with diagnostic and said everything is fine. We don't know what the P0455 is did change gas cap. And now have both my purge flow passesing now before only 1 purge flow passed. He checked control level. Also pass. He said could not find a thing wrong with my evap system. Maybe will stay off now. Since this time both purge flow working now. And replace gas cap before i run. Only have 1 sensor not tested
EVAP Monitor (0.020”), Manufacturer Defined Test ID range — This parameter is an identifier for the test performed within the On-Board Diagnostic Monitor., ,― Status: Test not complete MID: 3C TID: 80 MIN: - VAL: - MAX
How long does that take to set or is there a certain way to reset that one? That why my evap code not on now. Can it turn on once this resets? And anyone know what problem would be? Did all the checks.
Going to cost me a fortune to figure out. More tools and more time and time is costly part. I can get parts cheap. Ok so now you know everything any ideas? Fixed the P0420 knew that was cat. Even though he checked to see if it was cat or not knew it was. I was clearing codes myself and p0420 was there and throwing that code almost everything was done. Got new cat for $581 Magnaflow high flow. And $200 to take one off and put back on maybe 3 hours 360. Had to get gaskets from dealer. $60 and my side turn signals where out. Oh had heat shild put in and turn signal switch. 1 Smoke test. And 1 diagnosis and 2 more when done and checked check valve. $720. That was 6 hours in labor. It was all the checking the ENGINE that cost so much. Cat ran 3 hours to take of and put on. Smoke these 100 prob and heat shield and turn signal switch in. But I will be damned he said if light comes on he siad he will look at it again. Prob not for free. I rather just drive with the light on if not hurting anything. Need to make bank again before i can get car worked on again.
 
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