Question about 2004 GMC Canyon

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Check engine light comes on. had it checked. code comes for a large and small evaporation leak. what could be the possible problem or problems

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What does it mean when the engine light is on dash?

Posted on Dec 06, 2010

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May need to replace gas cap.

Posted on Mar 28, 2011

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Location for 2006 buick rainier EVAP purge solenoid


You should have an EVAP leak test done . It could be a leaking purge valve , you could need a new gas cap as well or it could be the fuel filler neck . or assorted hoses or the fuel tank pressure sensor . If the check engine light is lit there will be a code .
DTC P0442: Evaporative Emissions (EVAP) System Small Leak Detected or
DTC P0455: Evaporative Emission (EVAP) System Large Leak
DTC P0446: Evaporative Emissions (EVAP) Vent System Performance
You have to jack up the vehicle , the purge valve is attached to the engine behind the A/C compressor .

Dec 01, 2015 | 2006 Buick Rainier

1 Answer

P0440 engine code


po440 is a large leak in - Evaporative System, A bad fuel cap seal will cause this also. remove cap and replace it on tight, and see if light goes out. Check all vacuum hoses, Under hood, and car. carefully, for a leak.Even a small hole will cause a vacuum leak and turn check engine light on. Good-Day!

Aug 24, 2014 | Nissan Pathfinder Cars & Trucks

2 Answers

How to repair engine code po442 2009 mazda 5?


Check the purge solenoid under the hood common problem in mazda 5 6 cx7.

Jul 11, 2014 | Mazda Cars & Trucks

1 Answer

Hyaunda 2010 check engine light code P0442


code p0442 has 2 possible fault areas

evaporative emission (EVAP) system --small leak detected===causes --hose connection/s--intake leak--EVAP canister--EVAP canister purge valve
and the second possible

evaporative emission system--large leak detected (fuel cap loose/off)===causes--mechanical fault---hose connection/s---EVAP pressure sensor

May 16, 2014 | 2002 Subaru Impreza

1 Answer

Low Fuel Pressure


when check engine light comes on VSC is disabled. small leak is for evaporative system (to prevent fuel vapors from entering the atmosphere) small leak is A leak less than forty thousandths of an inch, it could possibly be a gas cap not fully tightened,leak in a vapor line,leaking fuel filler neck,gas tank leak,purge valve,vent valve just to name afew. clearing code will turn off both lights but if theres a leak lights will come back on.

Apr 05, 2013 | Cars & Trucks

2 Answers

What does po440 on a 2003 saturn vue mean with a service engine soon light on


That is a problem in the evaporative emission control system.
Could be anything causing it
Clogged filter in the charcoal canister
A leak in one of the vacuum lines
The purge valve not working,,,etc.
The best thing is to take it and have it checked out, they might have to do a smoke test to find the problem.
All they do is inject smoke into the system, if there is a leak the smoke will come out of it. All it takes is a pin hole in these emission systems to screw it all up.

Aug 13, 2010 | 2003 Saturn VUE

2 Answers

I checked the codes and one comes up its po446. i dont under stand what it mean so i cant fix it to get the light to go out.


P0446 Evaporative Emission System Vent Control Circuit.
The following are descriptions of all Evaporative possible codes:

P0441 Evaporative Emission System Incorrect Purge Flow
P0442 Evaporative Emission System Leak Detected (small leak)
P0443 Evaporative Emission System Purge Control Valve Circuit
P0444 Evaporative Emission System Purge Control Valve Circuit Open
P0445 Evaporative Emission System Purge Control Valve Circuit Shorted
P0446 Evaporative Emission System Vent Control Circuit
P0447 Evaporative Emission System Vent Control Circuit Open
P0448 Evaporative Emission System Vent Control Circuit Shorted
P0449 Evaporative Emission System Vent Valve/Solenoid Circuit
P0450 Evaporative Emission System Pressure Sensor/Switch
P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance
P0452 Evaporative Emission System Pressure Sensor/Switch Low
P0453 Evaporative Emission System Pressure Sensor/Switch High
P0454 Evaporative Emission System Pressure Sensor/Switch Intermittent
P0455 Evaporative Emission System Leak Detected (large leak)
P0456 Evaporative Emission System Leak Detected (very small leak)
P0457 Evaporative Emission System Leak Detected (fuel cap loose/off)
P0458 Evaporative Emission System Purge Control Valve Circuit Low
P0459 Evaporative Emission System Purge Control Valve Circuit High
---
At least the cap isn't loose for the gas tank.

I would clear the code with an OBD-II Scanner 'erase code' button, and see how long it takes for it to come back.

Aug 06, 2010 | 1996 GMC Jimmy

2 Answers

Check Engine lite comes on Code PO440


16824/P0440/001088 - EVAP Emission Control Sys: Malfunction Possible Symptoms
  • Malfunction Indicator Light (MIL) active
Possible Causes
  • Evaporative Emission (EVAP) System leaking
  • Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) faulty
  • Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115) faulty
Possible Solutions
  • Check Evaporative Emission (EVAP) System Sealing
  • Check Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
  • Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115)

Jun 17, 2010 | 2000 Volkswagen Beetle

1 Answer

Having the same problem the other guy described.


First of all, these codes are what are called "Powertrain Trouble Codes' (that's what the "P" means P=Powertrain). TCM Request (Transmission Control Module = TCM). The request was to turn on the 'Check Engine" light.
P0720 - output speed sensor circuit malfunction
P0715 - Input speed sensor (turbin speed) circuit malfunction
P0442 - Evaporative Emission System Leak (Small Leak)
P0455 - Evaporative Emission System Leak (Large Leak)
Check fuel filler cap problems - for Evap Emiss leaks
Replace the pulse generators & have the trans fluid replaced/flushed.
The Main Catalyst System Efficiency Bank 1 Is P0420, not P0442
If you had P0420 code, the catalytic converter is shot... and that's an expensive component.

Oct 06, 2009 | 2001 Hyundai Elantra

3 Answers

2003 Chevy Silverado 1500 Error Codes


P0135 is a bad 02 sensor
P0442 is a evap problem
P0449 is a vent solenoid

i would check the vent solenoid first its a 4ws fuse under the hood in the fuse box make sure you have power to it you should have power at all times the ground comes from the pcm i think if you fix this everything else will work they are all computer controled

Mar 23, 2009 | 2003 Chevrolet Silverado 1500

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