an emissions control leak (small). im not sure of the exact code. they told me to get a new gas cap and i should be fine. so i did and the code came back on. i went back and had them turn it off twice and it is still coming back on. what does this mean and how much would it cost to fix it? thanks.
Yes it sounds like your CV joint. If this goes out then the axel need replacing.
The system checks the evaporator system. This is what takes the gas fumes and puts them back in the gas tank. It has several vacuum hoses that could be leaking. That's the problem with having a parts person try and fix your car. The code reader only says what could be wrong, So unless you look at everything that also could cause the problem your only guesing. Is a hose broken is the vacuum canister cracked? Why it may seem cheap and easy to go and get a free diagnossis keep in mind that you get what you pay for is more than just a funny saying. Find a reliable mechanic and have him check you evap system with a smoke machine.
If it's making noise hope you find a good shop because you need to fix it. It will only get worse and make more things have to be replaced. Could be anything in the front suspension.
I have a 2001 Pontiac Grand Prix GT (same engine). When you put the gas cap back on after filling it up, are you tightening it enough to make it click at least 3 times? If not, that could be your problem. If you do that and it still doesn't go away, take it to a repair shop for an estimate -- NOT a dealer. Dealers will charge you top-dollar and do piss-poor work. The last emissions control problem I had was a bad EGR valve, and that cost me about $350.00 to get it replaced.
code p0440 which is affectionately called the gas cap code is one of the most annoying codes out there The first thing i am going to ask you might sound silly ,but,do you put the gas in your car? If so do you turn the cap until it clicks about 3 times?If it is not on tight enough the computer detects the leak of gas fumes nexthave the cap tested at an emissions centre to see if it holds its pressure If the cap is OKyou need theoh goddealerthis emissions leak is in the system of vents and hoses in the tankthe dealer can do a smoke test to see where the vapours are escaping(yes this is an actual test) The lad from Autozone should have mentionned to you about testing the gas cap first before selling you onesince if it is actually in the emissions you justed wasted the money on a cap.
