First sign of problem was my Check gas cap message in my display. SO I replaced the gas cap. The message stayed. About 2 months after the gas cap was replaced...about 3 weeks ago, I started noticing a gas smell while driving. This appears to be worse when the gas tank is closer to Empty. I'm going to have my mechanic friend check it out tomorrow, but I was wondering if anyone had experience this type of problem and if so, where is the most common place to look? One person suggested there may be a small hole in the filler neck, but I have no idea what that is. I'm hoping my mechanic will! Thanks for reading...any suggestions will be greatly appreciated.
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Make sure the computer has been reset since changing the cap. Autozone, etc. will scan for free.
The smoke test should have caught the problem provided the shop looked at the gas tank too. There can be a problem in the electric solenoid valving for the canister which can be concealing a leak beyond the solenoid valving. If the solenoid is closing off the flow, then it can also close off the leak.
As for smelling gas, its the fumes which flow in these hoses, not raw gas. If the Vacuum system draws the fumes in, or if the leak is rearward, there is less of a chance of smelling the fumes. Rushing air from driving will dissipate many fumes.
I would check the gas cap to make sure the gasket is seating correctly on the filler neck. Also check, if you can, the filler neck from the gas cap down to the tank. If it is damaged, it could seep gas fumes. If you see no other signs of an obvious leak on the garage floor, it's likely a gasket issue in the fuel fill side of the system. It does not take much fumes to smell it strongly.
sounds like the power steering pump is the problem. check the drive belt for proper tension and if that looks fine - then replace the pump.
the reason it only works when you step on the gas is because the pump is moving faster then at idle. which is why I think it could just be a loose belt. but again - if the belt looks good and tight, then the pump is bad and needs replacing.
An Evap leak in a car is usually fuel fumes leaking from the evap system. The purpose of the system is to expel pressure built in the gas tank, collect the fumes, and then at the right moment, purge the fumes into the intake to be burned. On newer cars, a leak in the system will set off the check engine light. The leak doesn't have to be big... in fact, it can be tiny. As in, can't see with the naked eye, tiny. A smoke machine is usually used to find the leak. A popular cause of an evap code is a loose gas cap, as the gas tank and filler neck itself are part of the system.
how many miles on vehicle !?? is there gas in vehicle ??need more info ,,, but ,, find gas tank ,, lay on ground and with a rubber mallet light tap tank in midddle while some one starts car possible bad fuel pump ,,,
A code 455 most likely one or more of the following has happened a loose or bad gas cap a non-conforming gas cap other leaks or damage pieces in the evap system
Inspect the evap system for cracks or breaks in lines listen for vacume leaks or strong gas fume smell and fix all lines you find that are damaged ..I know you say you put a new gas cap but make sure it a conforming cap..Hope this helps
More than likely it is your gas cap. Make sure that you have it on tightly. If you do and are still getting the code. I would suggest changing out your cap and tha should get you taken care of. Good luck and let me know if you have any further questions. Thanks for using FixYa!
If the gas cap light is on and the cap is tight / was replaced, you probably have a leak somewhere else on the "EVAP" system. In short this is the system that monitors whether your fuel system is leaking fumes or not (environmental concern). The usual cause for "leaking fumes" is a gas cap that does not seal properly, but your leak may be elsewhere. Piping for this system runs from your gas tank, to your filler neck, all the way to the engine compartment of the car (to a purge tank and solenoid). This system also has piping that lets your engine burn these fumes at regular intervals. Most automobile service garages have equipment to check for leaks in this system.