Q: I failed my emissions test and got a P0440 Diagnostic Code
My 2004 Honda Civic failed the E-Test and received a P0440 Evap code.
I am trying not to spend loads of money at the repair shop, I was told it would be over $100 just to run a diagnostic test to find out what the problem really is (not including the price to actually get the problem fixed).
I did some research online and decided to replace the gas tank cap as it was a possible solution, but the Engine light is still on, so I'm assuming that that didn't do anything.
Are there any other ways I can try doing this myself to figure out what is causing this? Not looking to fix it myself (unless I can) but more so looking to find the root of the problem and then bringing it into the shop to get it fixed specifically.
Thank you so much in advance! My car has an automatic transmission.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
A piece of cardboard/paper from the coolant jug was accidentally dropped into the coolant tank.
Unfortunately, this tiny piece of cardboard will not dissolve in coolant as it is designed to withstand the chemical makeup of the coolant. This can become lodged in areas inside the radiator that will prevent the proper flow of coolant...
I smell gas and it blows white smoke out of the exaust.
Hi There, There are a number of things that can cause poor fuel mileage. A faulty camshaft position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) is one of them. The camshaft position sensor is a magnetic sensor that monitors camshaft speed to regulate ignition timing...
Asd relay clicking it wont start
Hello. On your particulate vehicle you should be able to disarm the anti-theft by either locking/ unlocking the driver's door or unlocking the liftgate with the key. If doing it that way does not disable the alarm system you...
Shifter moves but gear won't engage
It sounds like you may be having an issue with your shift linkage. This will either be a cable driven linkage or an electronic linkage. The cable driven style can often break causing no mechanical connection between the shifter and...
I installed new thermostats in my 2007 Nissan Altima 2.5l shortly after the car started to overheat so I put back the old t-stats
The best thing to do first is put the new thermostats back in the engine. Old thermostats are damaged when they come in contact with the ozone layer outside when they have been running in the engine for a long...
Why does my temperature gauge go into the red when using the heater in my 1992 Chevrolet Lumina
Hello. There area lot of things that can cause this. The first thing I would check is the thermostat. If the thermostat is not opening right then this will occur. If the thermostat is fine then it may have a...
Mercedes Benz c300, 2015 power steering malfunction is showing up on the dashboard.
Hi there. With electronic power steering system like your Mercedes-Benz C300 has, this issue is typically due to a sensor failure or mechanical problem with the power steering system that needs to be correctly diagnosed before any repairs are attempted....
Car starts n idles fine. When I put it in gear it stalls. I'm thinking transmission fluid problems? Also it "CLANKS" when shifting
The torque converter and torque converter lock up solenoid should be evaluated. Another possibility is an internal hydraulic leak in transmission seals causing pressure to apply both reverse and forward gears at the same time, lock up the transmission and...
Related articles
2012 Mazda 3 vs. 2012 Honda Civic: Which One Should I Buy?
Compact cars are well-known for their cost-effectiveness, value and affordability as well as their small stature. In general, they make great commuter cars and are especially good for first-time cars for kids or college students heading out for the first...
The Best Used Cars to Buy for Long Commutes
Most Most of us are faced with the prospect of commuting back and forth to work on a daily basis, but some have a much longer drive than others. When it comes time to buy a car, you need to...
The Best Used Cars to Buy for Senior Citizens
Everyone Everyone needs a way to get around. You need to get groceries, get to doctors’ appointments, visit with family and more. However, senior citizens have very different needs when it comes to buying a used car than other demographics....
Browse other content
Cities
Estimates
Services