Question about 2005 GMC Sierra 2500HD 4WD

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Cannot pump gas into tank. the safety mechanism on gas pump keeps shutting off. I do have a check engine light for a small emissions leak.

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You need to replace the vent purge solenoid. this is what vents the air out of the fuel tank when you fill up and what is causing your code. it is available at your dealer, and is a fairly common issue. good luck!

Posted on Oct 06, 2010

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Posted on Jan 02, 2017

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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

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Check eng. light is on, scanner sais small emissions leak, replaced rubber connecting lines already. Help


Small emission leak would indicate to me that the exhaust is leaking, maybe, throwing off the O2 sensor.

If it's an evaporative leak, then I would make sure the gas cap is on tight, and that the filler tube is connected with a vapor tight connection to the tank, and that the tank has no leaks in it.

What was the code, exactly, if I might ask?

Jan 14, 2011 | 1999 Jeep Cherokee

1 Answer

Troubleshooting code PO442 check engine light on. When I put in gas, gas nozzle keeps cutting off like tank is full


The code PO442 is a small leak somewhere in the evaporative emissions control system, the best way to find that is to take to a shop that does smoke tests for emissions.
As far as the nozzle, try changing the position of it the next time you get gas.

Nov 18, 2009 | 1999 Hyundai Accent

1 Answer

I have a 2002 hyundai accent, i could not pump gas into the tank, i found charcoal pellets in the hose from the evap canister to the tank fill neck. I emptied the hose and i can pump gas. now my car is...


First GUESS.. replace the charcoal canister after you have cleaned out the hoses between it and the canister. Then blow air between the purge control solenoid valve and the fuel tank.

Oct 23, 2009 | 2002 Hyundai Accent

2 Answers

Check engine light on says check gas cap. Is it the cap or a sensor?


The evaporative emissions system uses a vaccuum pump to check the fuel system to make sure that fuel vapors cannot escape into the atmosphere. If you leave fuel cap loose the computer will detect it and set a computer code and turn on the check engine light. If the cap is tight and the light still comes on, you may have other problems. Hopefully your vehicle is still under warranty, as evaporative emission system leaks can be very difficult to locate and repair, even for the dealership mechanics.

Aug 28, 2009 | Chevrolet Cobalt Cars & Trucks

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Trouble codes


P0441
Evaporative Emission System Incorrect Purge Flow
P1494
Jeep: Leak detection pump pressure switch or mechanical fault
U either have a leaking fuel system or the pressure sensor at the gas tank is defective, I would replace the pressure sensor 1st.

Jul 02, 2009 | 2000 Jeep Cherokee

3 Answers

2000 cavalier check engine light code po440


P0440 - Evaporative Emission (EVAP) System


evaporative emission (EVAP) system has a large leak.
Check the gas cap or vent valve. these are the most common problems.


The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the Fuel tank pressure sensor (FTP). When the sensor indicates a small leak in the EVAP system, this code is set.


Here are some additional causes.

* A small leak in any of the EVAP hoses or fuel tank hoses
* A small leak in the purge valve or vent valve
* The EVAP Canister may be leaking

Jun 06, 2009 | 2003 Chevrolet Cavalier

2 Answers

Error code p0442


EVAP Emission Control System - Small Leak Detected (1.0 mm). This code can be set when 1. fuel filler cap is not completely tight, 2. when various hoses get punctured or the canister close valve does not seal completely, 3. there is an actual leak in the charcoal canister, fuel tank, or other EVAP system component, 4. if any one of these components are malfunction (a), fuel tank pressure sensor, (b) purge control solenoid valve, (c) canister close valve, or (d) fuel cap. An engine vacuum leak would not set this code.
Solution: Take the vehicle to a Hyundai Dealership for proper diagnosis/repair.

May 23, 2009 | 2001 Hyundai Santa Fe

2 Answers

Yellow emission engine light comes on


Is that P0442?, if so it may be due to a loose gas cap or leaking gas cap check valve.

Oct 15, 2008 | 2001 Chevrolet Cavalier

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