Question about 2001 Mitsubishi Montero Sport 4WD

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Po442 evap control sys. small leak - 2001 Mitsubishi Montero Sport 4WD

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1 Answer

What is the question?
Never heard of the EVAP System?

It allow you to fill your fuel tank and under
a set of conditions,burns the fuel vapors
when your driving.

Same as any other Malfunction Indicator
on your dash,retrieve codes,diagnose,
find solution and repair.

The leak could be a hose,valve,solenoid
or one of 15 items in the system

Posted on Mar 22, 2011

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Posted on Jan 02, 2017

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1 Answer

PO442 code on my 2004 mit galant,LS V6 3.8 how to fix an evap problem small leak


the causes for the small leak are listed as
hose connections --intake leak--- EVAP canister--- EVAP canister purge valve
check hoses for small cracks ( old hoses) or replace the purge valve

Sep 19, 2016 | 2004 Mitsubishi Galant

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Po442 code reader


no nothing to do with transmission ---its an evap code small leak detected this is the usual check gas cap that its on and tight or replace because seal is shot but the following link explains the other problems with assistance in helping repair problem
http://www.obd-codes.com/p0442

Jul 25, 2016 | 2000 Honda Passport

1 Answer

PO442


code p0442 refers to evaporative emission (EVAP) system--small leak detected====causes hose connection/s---intake leak--EVAP canister---EVAP canister purge valve
it also refers to evaporative emission system --large leak detected (fuel cap loose/ off)===causes---mechanical fault--hose connection/s--EVAP pressure sensor.

Jun 14, 2014 | 2003 Toyota ECHO

1 Answer

Codes0441 0442 0455 0456


codes po441 po442 po455 po456. code po441 - EVAP system no flow during purge conditions.code po442 -EVAP system small leak detected conditions. code po455 - EVAP system large leak detected conditions.code po456 - EVAP system very small leak detected. possible causes loose damaged missing fuel cap.fuel tank sensor disconnected or failed. ORING on top fuel sending unit leaking.purge valve vapor line clogged disconnected or purge solenoid failed.vent solenoid not closing or has failed.

May 23, 2013 | 2002 Dodge Durango

1 Answer

2006 maza 3 code po442 what is the problem


PO442 --small leak somewhere in EVAP System

Make sure the gas cap is on tight

Otherwise have the evap system smoke tested
& vacuum hose leaks or solenoids replaced

Oct 03, 2012 | 2006 Mazda 3

1 Answer

What does PO442 and PO463 codes mean


PO442 indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.A code P0442 most likely means one or more of the following has happened:
  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • A small leak/hole in a fuel vapor hose/tube
  • Other small leak in EVAP system
  • Faulty vent o-ring seal
With a P0442, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, or
  • Inspect the EVAP system for cuts/holes in tubes/hoses
P0463 Fuel Level Sensor Circuit High Voltage

Jan 26, 2012 | 2002 Cadillac Deville

1 Answer

DTC # 01-PO442 and P1407 are the codes that come up possible solution help


PO-442 EVAP Control System Leak Detected (Small Leak)

You will need to put an EVAP Smoke Machine, on system to find leak

P1407--Should be EGR related.

Most likely need new EGR Valve

May 23, 2010 | 2001 Ford F150 Styleside SuperCrew

1 Answer

Engine coad po442 how do i fix it


PO442 is the data trouble code for (evaporative emission control system leak detected "small leak") it means that the OBD-II system has detected a small vacuum leak in the evaporative control system.

You will need to find the vacuum leak in the evaporative control system, check for cracked or broken vacuum lines and hoses, especially the vacuum hoses and lines around the evaporative (Evap) canister and the (Evap) solenoid. Also check the gas cap seal for damage.

Vacuum hoses and lines should be checked very well for any cracks or breaks, because they usually hide under the vacuum line or hose.

May 02, 2010 | 2001 Dodge Durango

1 Answer

Failed Emision test


po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.

Sep 01, 2009 | 2001 Dodge Caravan

5 Answers

2001 Dodge Caravan/check engine light


P0442--Evap Emission Sys. leak detected small leak
P0455--Evap Emission sys. leak detected gross leak
P0456--Evap Emission Sys. leak detected very small leak

Jun 07, 2008 | 2001 Dodge Caravan

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