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P0440 Code Trouble For 2003 Chevy Malibu

I replaced the PCV valve and the engine light did not turn off and I made sure that the line wasn't plugged. Also the gas cap is in working condition. Any ideas on how to fix the EVAP Emissions Control Malfunction (P0440) code?

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Posted on Jan 02, 2017

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SOURCE: 1996 Chevy Blazer check engine light on

More then likely its the Canister Purge Solenoid. you can find it online at www.autozone.com the part number is PV140. And to replace it on blazer you have to remove the spare tire. Alot of people don't know where this part is so I hope this helps you and good luck.

Posted on Oct 14, 2008

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1998 Chevy Malibu is using excessive oil. Had an oil change done back in October 2012 . Then checked Oil level in December of 2012 and was about 3/4 low in oil! why ?


first thing check make sure oil pan drain plug tight. check make sure oil filter tight. try tighten oil filter by hand see if turn tighten oil filter clockwise direcction if all is good. how many miles on vechicle.could have oil leaks park vechicle in spot that clean.move vechicle see if you see oil spots on ground if yes.your front timing cover seal leaking oil or rear main oil seal ;eaking.or valve cover gaskets leaking.if find no oil leaks more likely engine burning oil.replace pcv valve.check air filter if you see oil in air filter housing either have bad pcv valve or pcv not getting vacuum make sure pcv valve getting vacuum when engine running vacuum should be felt at pcv if not pcv valve bad or pcv hose disconnected broken or plugged.if pcv valve okay engine has worn piston rings.worn valve seals or guides or oil return holes stopped up thats all possible reasons for engine burning oil.if spark plugs oil fouled engine burning oil.

Jan 11, 2013 | 1998 Chevrolet Malibu

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What does code t0440 mean on a 2003 malibu


Do you mean "P0440"?

Diagnostic Test Code (DTC) P0440 has a generic description of "Evaporative Emissions System Large Leak".

The MOST COMMON cause of this code is refueling the vehicle with the engine running or not getting the fuel cap on correctly after refueling.

The Powertrain Control Module (PCM) checks for leaks in the Evaporative Emissions (EVAP) system using the data provided by the Fuel Tank Pressure (FTP) sensor. It will check the FTP sensor data, then close the EVAP Vent Valve and open the Canister Purge Valve to apply vacuum to the EVAP system. After a period of time, the PCM will again check the FTP data to see if the fuel tank pressure has dropped within a specified amount. If there is very little or no change in the FTP data, DTC P0440 sets.

Other possible causes for this code are:

> Defective FTP sensor (VERY RARE)
> EVAP Vent valve stuck open
> Canister Purge Valve stuck closed
> Large leaks or cracks in any of the EVAP system hoses and/or lines and/or components, including the fuel tank and the fuel filler neck and the EVAP canister

Please note that this code indicates a MECHANICAL failure of the system. This is NOT a circuit fault that would involve broken/shorted wires, blown fuses, etc..

Nov 12, 2011 | 2003 Chevrolet Malibu

1 Answer

P0440 and P0302 scan code - changed plugs and wires. Changed emission purge valve. All vacuum lines appear to be OK. Fuel lines are not leaking. Good spark to cyclinder two when using spark tester. ...


Cylinder 2 Misfire Detected po302 . Evaporative Emission Control System po440 The last digit on a misfire code indicates the cylinder number. A code P0302, for example, would tell you cylinder #2 is misfiring. Chances are the misfire is due to a weak ignition coil. Did you change the pcv valve? Remember to put the o-ring on the new one or this problem will happen.

Sep 24, 2011 | 1997 Buick LeSabre

1 Answer

Where is the location of the PCV valve in a 3.5 liter 2006 Chevy Malibu Maxx?


Almost all PCV Valves, have been on one valve cover or the other, for
the last 50 years

They never need replacement.

Remove & clean, if you got nothing else to do

Sep 20, 2011 | 2006 Chevrolet Malibu Maxx

2 Answers

2005 Chevy Malibu gas cap tightened, chk eng still on.


It needs to be reset probably has a p0440 code in the computer.

Jul 24, 2010 | 2005 Chevrolet Malibu

2 Answers

Chevy 2002 Malibu ERG valve


Symptoms of a bad EGR valve are usually stumbling idle or the engine stalling when the car is warm (normal operating temperature). Find the EGR valve and locate the vacuum line attached to it. Start the engine cold and wait for it to warm up. When the engine starts to stumble, pull off the vacuum line. If the EGR is bad, the engine idle will stabilize and no longer stumble.

May 25, 2010 | 2002 Chevrolet Malibu

3 Answers

2003 ford taurus idle problems had trouble codes


A code P0174 may mean that one or more of the following has happened:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor. and your solutions are.
    • In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner . Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
    • Inspect all vacuum and PCV hoses, replace if necessary
    • Check for a dirty fuel filter and proper fuel pressure

Oct 24, 2009 | 2003 Ford Taurus

1 Answer

I'm getting a code p0440 i replace the gas cap but my engine light came back on same code can someone help me and let me know what to do next


well if you bought a good gas cap and the right one you need to check for a leak at the evaporative lines check the pcv valve and for any vaccum leaks if that is not it you could have a bad evap vent selonoid or bad charcoal canister. it is a simple diagnostic if you had a scanner and a smoke machine.

Jul 02, 2009 | 2003 Oldsmobile Alero

1 Answer

PCV VALVE REPLACEMENT


The pcv valve is usually located on one of the valve covers look for the larger vacuum hose coming from the intake manifold and follow it you should find it that way. changing it is a matter of sometimes using a pair of pliers to remove a small clamp then rotate back and forth the pcv valve while holding the hose and pulling it away and off.

Jul 02, 2009 | 2003 Chevrolet Malibu

2 Answers

2002 Chevy Trailblazer w/101,000 mi has the P0440 OBD II Code. Just replaced the plugs with Iridiums @ 100K, all connections are good and gas cap is seated properly . . . help!!!


i have 2003 trailblazer ltz 153 000 mileage i have code po440 .i changed gas cap and turned off the chech engine light... i made 300 miles and it was good and today morning i drove a mile and light turned on ..... what do i have to fix ...thanks

Mar 22, 2009 | 2003 Chevrolet TrailBlazer

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