Question about 1997 Nissan Pathfinder

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P0440 troble code

1997 pathfinder
p0440 code.
evap small leak.
where is this evap located

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  • Anonymous Mar 29, 2014

    store evap leak

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  • 426 Answers

It should be located near the radiator, check for clogs find the hot compressor line and trace it to find it :) they can be hidden in many places but its usally locaed near the radiator as thats where all the air flow and exchange happens hope this helps

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Posted on Jun 13, 2008

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Hello there,my 2001 echo is lighting up trouble codes p0440 p0441 p0446; how and where should i start?


code p0440 refers to evaporative emission (EVAP) system--malfunction=== causes --hose connections --intake leak--EVAP canister purge valve
code po441 refers to EVAP --incorrect flow detected==causes the same as for po440
code po446 refers to EVAP system vent control --circuit malfunction===causes --wiring---EVAP can purge valve--ECM
generally I would replace the purge valve as it is common to all codes

Feb 03, 2014 | Cars & Trucks

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Check engine light shows OBD fault code P0440 EVAP Ctrl System Malfunctionfree engine fault codes


code p0440 refers to evaporative emission (EVAP)system malfunction===causes--hose connections--intake leak--EVAP canister purge valve. Check all hose connections and replace the canister purge valve.. If you can locate the unit you should be able to replace it yourself

Sep 21, 2013 | Daewoo Leganza Cars & Trucks

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I have 2000 Montana. Service Eng light on, a check says: P0440 -- evaporated emission cntrl system small leak/low flow condition. Explanation: defective or loose fuel cap, evvap canister or hose cracked-...


P0440 small evap leak, If it was purge at fault the PCM would give you a purge failure code, If it was that vacuum leak you are hearing you would of have lean bank code, anything with the evap in the engine compartment is purge,the back where the fuel tank is or the canister is evap. so you have evap problem,slow leak a broken hose would be gross leak detected. as for electrical it would be solenoid evap.fix the gas cap. 3_17_2012_9_11_41_pm.jpg

Mar 17, 2012 | 2000 Pontiac Montana

1 Answer

What is code p0440


EVAP Emission Control System Malfunction.
A code P0440 could mean one or more of the following has happened:
The gas cap is not installed or working properly The purge solenoid has failed The canister is plugged and not working properly Possible Solutions With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back. Inspect the EVAP system for cuts/holes in tubes/hoses Inspect for damaged or disconnected hoses around the Evap purge solenoid Check and/or replace the sensor Check and/or replace the purge valve Have a professional use a smoke machine to detect leaks

Sep 29, 2011 | 1997 Oldsmobile Cutlass Supreme

1 Answer

I have a 1997 infiniti i30 with engine codes p0600,p0440,p0446,p0720, im trying to find out what the parts are for each code and where the part is located on the vehicle.


this is an obd2 trouble code table, it can help you understand the meaning of code.

for the p0440, you can try this:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
Inspect the EVAP system for cuts/holes in tubes/hoses
Inspect for damaged or disconnected hoses around the Evap purge solenoid
Check and/or replace the sensor
Check and/or replace the purge valve
Have a professional use a smoke machine to detect leaks

for p0446, you can try this:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
Inspect the EVAP system for cuts/holes in tubes/hoses
Inspect for damaged or disconnected hoses around the Evap purge solenoid
Check and/or replace the sensor
Check and/or replace the purge valve
Have a professional use a smoke machine to detect leaks

Jul 26, 2011 | Infiniti I35 Cars & Trucks

1 Answer

Diagnostic code p0456 and p0440 on 2003 dodge durango


p0456
Evaporative emission (EVAP) control system leak detected (very small leak)
p0440
Evaporative emission control system malfunction

Sep 08, 2010 | 2003 Dodge Durango

2 Answers

Code P0440 on 1997 Grand Am-anyone have similiar situation?how can I fix it


code p0440 is an evap leak.to start off check to see if your gas cap is tight.remove it and see if the seal inside is cracked.if so replace it.if all is fine you have to find a leak within your evap canister.

Oct 04, 2009 | 1997 Pontiac Grand Am

1 Answer

2001 Alero code p0440.


there is still a small leak, the shop thats doing the testing can repair it? right? Usually these things are just one item, you may have more than one.

Sep 28, 2009 | 2001 Oldsmobile Alero

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