Question about 2004 Pontiac Grand Prix

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2004 Pontiac Grand Prix Evaporative Canister

Check Engine Light came on. Autozone analysis computer said that the EVAP Canister or hose is broken or cracked or the Purge/Vent Solenoid is defective. Where is the EVAP Canister and the Purge/Vent Solenoid? Can I fix this problem or do I have to take the car to the dealer?

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  • Anonymous Feb 01, 2009

    Same problem on my 04 grand prix.

  • Anonymous Apr 20, 2009

    Same problem, havent fixed it yet.

  • Anonymous Apr 28, 2009

    Same problem on my 2000 Grand Prix and I haven't fixed it.

  • Anonymous Mar 14, 2014

    hesitation 1st & 2nd gear evap purge solenoid

  • Anonymous Mar 17, 2014

    2006 trailblazer

  • Anonymous Mar 20, 2014

    how to replace Pontiac Gto Vapor Canister Purge Solenoid

  • Anonymous Mar 20, 2014

    how to replace Pontiac Gto Purge Solenoid

  • Anonymous Mar 24, 2014

    CHECK ENGINE SOON LIGHT CAME ON. TOOK AZTEC TO AUTOZONE. THIER CODE READER WOULD NOT POWER UP. HE SAID IT WAS A FUSE PROBLEM. I CANNOT FIND ANY THING ABOUT A FUSE FOR THIS CONNECTION. AUTOZONE'S CODE READER HAS WORKED ON THIS VEHICLE BEFORE. WHAT IS PROBLEM?

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  • 275 Answers

You should be able to fix it look for a can near the fuel tank that has vacuum hoses coming out of it and you should be able to just buy the bad solenoid

Posted on Nov 03, 2008

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1 Answer

Emissions Code


Error Code: P0441
Fault Location:
Evaporative Emission (EVAP) System - Incorrect Flow Detected
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
- Purge control VSV connector disconnected.
- Evaporative Emission (EVAP) Canister Purge Regulator Valve is faulty/jammed.
- Evaporative Emission (EVAP) Canister Purge Solenoid Valve faulty/jammed.
- Evaporative Emission (EVAP) Canister Sealing faulty.
- Pipes between Tank Breathing and Throttle Body leaky/blocked.
- Hose connection(s).
- Intake leak.
Solutions:
- Check Evaporative Emission (EVAP) Canister Purge Regulator Valve.
- Perform Output Test.
- Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve.
- Check Evaporative Emission (EVAP) Canister.
- Perform Basic Setting.
- Check Pipes between Tank Breathing and Throttle Body.

Jan 10, 2014 | Toyota Cars & Trucks

1 Answer

Check gas cap


You'll need to get the computer scanned for trouble codes.
Chances are there is a small leak in the EVAP system. Could be a valve or hose in addition to the gas cap.

Feb 28, 2013 | 2001 Pontiac Grand Prix

1 Answer

I replaced evap vent solenoid & dtc came back


Here is the definition of the code and possible causes.

P0449 PONTIAC Description The Engine Control Module (ECM) monitors the Evaporative Emission System (EVAP) Vent Valve/Solenoid system wiring for opens or shorts.

When is the code detected?The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Possible causes - Vacuum leaks, damaged hoses or improper routing
- EVAP system - Check fuel cap, canister, valves or components
- Faulty purge or vent solenoids
- Check connector and wiring
- Fuel saturated vapor canister
- Failed EVAP vent solenoid
Read more: http://engine-codes.com/p0449_pontiac.html#ixzz2M1YJd7DU

Feb 26, 2013 | 2002 Pontiac Grand Prix

1 Answer

Code 0455 on a 2004 grand prix


P0455 - Evaporative Emission Control (fuel vapor control) System Leak Detected Gross Leak

Possible causes- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking Tech notes The P0455 it's a very common code, because the code is set if the gas cap is loose or missing. Start by tighten the gas cap and clearing the code. In most cases the code can be clear by disconnecting the car battery for about 30 minutes.

Oct 02, 2012 | 2004 Pontiac Grand Prix

3 Answers

What is code PO496 and PO455 for a 2007 Pontiac Grand Prix mean


P0496 is not alisted code.
P0455 - Evaporative Emission Control System Leak Detected Gross Leak (fuel vapors)
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Jan 24, 2012 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

2004 Grand Prix GT gas cap light,an engine light is on. Took it to autozone an code read po445 replaced gas cap, an light is still on. is there a time limit on light going out if i jus replaced it? Or what...


P0445 - Evaporative Emission Control System Purge Control Valve Circuit Shorted is located in the engine compartment and is most likely the root of the problem.Would check the plug and wiring going to this to verify that no plug or wiring damaged has occurred.It is quite possible the part has gone bad.

Apr 26, 2011 | 2004 Pontiac Grand Prix

2 Answers

Code says evaporator purge solenoid


Which code specifically? Do not assume you need a new solenoid. Our recommendation will depend on the specific code and some troubleshooting results. I usually recommend checking over all the EVAP vacuum lines and the gas cap too whenever there is a purge valve code. Check the vacuum lines at the cannister in the left rear bumper. I will paste info on the purge solenoid below.

P0440 Evaporative emission (EVAP) system - malfunction

Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


P0441 Evaporative emission (EVAP) system - incorrect flow detected

Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


P0442 Evaporative emission (EVAP) system - small leak detected

Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


P0443 Evaporative emission (EVAP) canister purge valve - circuit malfunction

Possible causes: Wiring, EVAP canister purge valve, ECM


P0444 Evaporative emission (EVAP) canister purge valve -open circuit

Possible causes: Wiring open circuit, EVAP canister purge valve, ECM


P0445 Evaporative emission (EVAP) canister purge valve -short circuit

Possible causes: Wiring short circuit, EVAP canister purge valve, ECM


P0450 Evaporative emission (EVAP) pressure sensor - circuit malfunction

Possible causes: Wiring, EVAP pressure sensor, ECM


P0455 Evaporative emission (EVAP) system - large leak detected

Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


P0456 Evaporative emission system - very small leak detected

Possible causes: Mechanical fault, hose connection(s), EVAP pressure "sensor


P0457 Evaporative emission system - leak detected (fuel cap loose/off)

Possible causes: Mechanical fault, hose connection(s), EVAP pressure sensor


P0458 Evaporative emission system, purge control valve -circuit low

Possible causes: Wiring short to earth, EVAP valve


P0459 Evaporative emission system, purge control valve -circuit high
Possible causes: Wiring short to positive, EVAP valve


Evaporative Emission Purge Solenoid

Description & Operation
The duty cycle EVAP canister purge solenoid (DCP) regulates the rate of vapor flow from the EVAP canister to the intake manifold. The Powertrain Control Module (PCM) operates the solenoid.
During the cold start warm-up period and the hot start time delay, the PCM does not energize the solenoid. When de-energized, no vapors are purged. The PCM de-energizes the solenoid during open loop operation.
The engine enters closed loop operation after it reaches a specified temperature and the time delay ends. During closed loop operation, the PCM cycles (energizes and de-energizes) the solenoid 5 or 10 times per second, depending upon operating conditions. The PCM varies the vapor flow rate by changing solenoid pulse width. Pulse width is the amount of time that the solenoid is energized. The PCM adjusts solenoid pulse width based on engine operating condition.
Removal & Installation
The duty cycle evaporative (EVAP) canister purge solenoid is located in the engine compartment near the brake master cylinder.

  1. Disconnect electrical connector at solenoid.
  2. Disconnect vacuum lines at solenoid.
  3. Lift solenoid slot from mounting bracket for Removal & Installation.

To Install:
  1. Position solenoid slot to mounting bracket.
  2. Connect vacuum lines to solenoid. Be sure vacuum lines are firmly connected and not leaking or damaged. If leaking, a Diagnostic Trouble Code (DTC) may be set with certain emission packages.
  3. Connect electrical connector to solenoid.
Purge solenoid location:

jturcotte_65.gif
EVAP cannister location:
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Nov 05, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Check engine light on. code P442. Mil is on. what does this mean?


P0442 CODE MEANS EVAPORATIVE EMISSION SYSTEM SMALL LEAK DETECTED
CHECK EVAP HOSE & CONNECTIONS, INTAKE FOR LEAKS, EVAP CANISTER, OR EVAP CANISTER PURGE VALVE

Apr 25, 2010 | 2004 Hummer H2

2 Answers

P0441 EVAP Control System Incorrect Purge Flow


Error Code: P0441
Fault Location:
Evaporative Emission (EVAP) System - Incorrect Flow Detected
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Evaporative Emission (EVAP) Canister Purge Regulator Valve faulty/jammed.
Evaporative Emission (EVAP) Canister Purge Solenoid Valve faulty/jammed.
Evaporative Emission (EVAP) Canister Sealing faulty.
Pipes between Tank Breathing and Throttle Body leaky/blocked.
Hose connection(s).
Intake leak.
Possible Solutions:
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
Perform Output Test.
Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve.
Check Evaporative Emission (EVAP) Canister.
Perform Basic Setting.
Check Pipes between Tank Breathing and Throttle Body.
VSV connector near air filter box disconnected.

Jun 15, 2009 | 1996 Chevrolet Monte Carlo

1 Answer

1997 Pontiac Grand Prix Evac Canister Pressure to low


Check hoses for cracks and holes at the pictured locations
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May 26, 2009 | 1997 Pontiac Grand Prix

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