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  3. TRQ VAPOR CANISTER PURGE SOLENOID VALVE 79QWCN

TRQ VAPOR CANISTER PURGE SOLENOID VALVE 79QWCN 3.5L V6

fits make: Pontiac. year: 2006–2010.

79qwcn Trq Vapor Canister Purge Solenoid Valve Fits Pontiac G6 2006-2010 3.5l V6

( Brand: Trq Vapor Canister Purge Solenoid Valve ), ( Manufacturer Part Number: 79QWCN ), ( Part Type: Vapor Canister Purge Solenoid ), ( Engine: 3.5l V6 ), ( Compatible Make/model: Pontiac G6 ), ( Compatible Years: 2009 2006 2007 2008 2010 09 06 07 08 10 ), ( Fitment Info: Vapor Canister Purge Solenoid Valve ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review TRQ VAPOR CANISTER PURGE SOLENOID VALVE Pontiac 3.5l V6 fits G6 2006–2010

The **79QWCN Vapor Canister Purge Solenoid Valve** is a precision-engineered component designed exclusively for Pontiac G6 models equipped with the **3.5L V6 engine** from the **2006 to 2010 production years**. This high-performance solenoid valve plays a critical role in the vehicle s evaporative emissions control system (EVAP), ensuring optimal engine efficiency, reduced harmful hydrocarbon emissions, and compliance with stringent environmental regulations. Crafted from durable materials, including a robust stainless steel or reinforced plastic housing, the solenoid is built to withstand the rigors of daily driving, extreme temperatures, and the corrosive effects of fuel vapors. Its internal coil mechanism operates with exceptional reliability, providing precise control over the flow of vapor from the fuel tank s charcoal canister to the engine s intake manifold during specific engine operating conditions typically when the engine is running but not under heavy load. This controlled purge process prevents excess fuel vapors from escaping into the atmosphere while maintaining the correct air-fuel ratio for smoother combustion. The **79QWCN** is a direct-fit replacement, meticulously designed to match the exact specifications of the original equipment manufacturer (OEM), including the correct electrical connector pinout, mounting orientation, and mounting bracket compatibility. Whether replacing a failed solenoid due to electrical issues, physical wear, or contamination, this valve ensures seamless integration with the vehicle s onboard diagnostics (OBD-II) system, allowing the engine control module (ECM) to monitor and regulate the purge cycle accurately. Ideal for mechanics, DIY enthusiasts, and performance tuners, this solenoid valve is a must-have for maintaining peak engine performance, extending the lifespan of the EVAP system, and avoiding costly diagnostic trouble codes (DTCs) such as P0440 or P0446. Its straightforward installation and long-term durability make it a trusted choice for restoring and preserving the reliability of your Pontiac G6 s emissions control system.

### Pros and Cons of Buying a Vapor Canister Purge Solenoid Valve (79QWCN) for a 2006-2010 Pontiac G6 3.5L V6

#### **Pros:**

1. **Direct OEM Replacement** The 79QWCN solenoid valve is a genuine GM part designed specifically for your vehicle s make, model, and year. This ensures compatibility with the engine control module (ECM) and fuel system, reducing the risk of improper function or diagnostic trouble codes (DTCs).

2. **Reliability and Durability** GM s aftermarket and OEM parts are generally built to withstand the operating conditions of the vehicle s fuel system. A quality solenoid valve should last the life of the vehicle if maintained properly, preventing leaks or malfunctions that could lead to emissions failures or drivability issues.

3. **Prevents Emissions Failures** The purge solenoid valve controls the flow of vapor from the charcoal canister to the engine intake during certain driving conditions. A faulty valve can cause the vehicle to fail an emissions test (OBD-II) due to improper canister purge control, leading to costly repairs if left unaddressed.

4. **Easy Installation** The valve is typically located near the charcoal canister and is connected via wiring harness and vacuum lines. Replacement is a straightforward DIY job for most mechanics or car owners with basic tools, reducing labor costs.

5. **Cost-Effective Long-Term Solution** While the part itself may not be extremely expensive, replacing it early prevents more severe issues like a failing canister, clogged intake, or engine performance degradation. It also avoids the need for repeated diagnostic trouble codes (e.g., P0446, P0449) that can trigger check engine lights.

6. **Improves Engine Performance** A properly functioning purge valve ensures optimal fuel vapor management, which can enhance engine efficiency and reduce hydrocarbon emissions. Over time, this may contribute to better fuel economy and smoother operation.

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#### **Cons:**

1. **Potential Counterfeit or Low-Quality Parts** If purchasing from an untrusted seller (e.g., eBay, Amazon, or uncertified online marketplaces), there is a risk of receiving a counterfeit or low-quality replica. These parts may fail prematurely, leading to repeated replacements and frustration.

2. **Misdiagnosis of Symptoms** Some symptoms of a failing purge valve (e.g., fuel smell, rough idle, or check engine light) can also be caused by other issues like a clogged canister, vacuum leaks, or faulty sensors. Without proper diagnosis, replacing the valve alone may not resolve the problem.

3. **Labor Costs if Professional Installation is Needed** While the part itself is relatively inexpensive, if you lack mechanical experience or tools, hiring a mechanic to replace it may add to the cost. However, this is a minor drawback compared to the potential long-term savings.

4. **Limited Availability of Genuine Parts** Genuine GM parts (especially older model-specific items) can sometimes be hard to find in stock at local auto parts stores. Online retailers or salvage yards may be necessary, which could introduce delays or shipping risks.

5. **Potential for Incorrect Part Selection** If the wrong solenoid valve is purchased (e.g., a universal fit or a part for a different year/model), it may not function correctly with your vehicle s ECM or fuel system, leading to persistent issues.

6. **Environmental and Emissions Regulations** In some regions, improper disposal of old purge valves or canisters may be restricted due to environmental regulations. Ensure you recycle or dispose of the old part responsibly to avoid legal or environmental issues.

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### **Conclusion:**

The vapor canister purge solenoid valve (79QWCN) is a critical component for maintaining your Pontiac G6 s emissions compliance and engine performance. The benefits of replacing a faulty valve such as preventing emissions failures, improving drivability, and avoiding long-term damage far outweigh the minor drawbacks, provided you source a genuine or high-quality part and ensure proper installation.

If your vehicle is exhibiting symptoms like a check engine light with codes P0446 or P0449, a fuel smell, or poor idle, replacing the purge valve is a practical and cost-effective solution. However, always verify the part number and source it from a reputable supplier (e.g., RockAuto, AutoZone, or a GM parts dealer) to avoid counterfeit or incompatible parts.

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### **Recommendation:**

1. **Confirm the Diagnosis** Before purchasing, double-check that the issue is indeed a faulty purge valve. Use an OBD-II scanner to read codes and inspect the valve for physical damage or leaks. If other components (e.g., canister, hoses, or sensors) are suspect, address those as well.

2. **Purchase from a Trusted Source** Buy the **79QWCN solenoid valve** from a well-known auto parts retailer (e.g., RockAuto, AutoZone, or a local GM parts dealer) to ensure authenticity. Avoid overly cheap third-party sellers unless they have verified reviews or certifications.

3. **Follow Installation Guidelines** If you re replacing it yourself, follow the vehicle s service manual or a reliable online guide (e.g., Chilton, Haynes) to ensure proper disconnection of wiring and vacuum lines. Improper installation can lead to leaks or electrical issues.

4. **Reset the ECM** After replacement, clear the check engine light using an OBD-II scanner to ensure the vehicle s computer recognizes the new valve. Drive the car for a short period to allow the ECM to relearn the purge cycle.

5. **Monitor for Recurring Issues** After installation, watch for any persistent symptoms (e.g., check engine light returning, fuel smell, or performance issues). If problems persist, inspect other related components like the charcoal canister or intake system.

**Final Verdict:** Replacing the purge solenoid valve is a **highly recommended and cost-effective fix** for a failing valve in your 2006-2010 Pontiac G6 3.5L V6, provided you take steps to ensure the part is genuine and installed correctly. This simple repair can save you from more expensive emissions-related repairs and maintain your vehicle s reliability.

Details:

12 Month Warranty. TRQ Vapor Canister Purge Solenoid fits Pontiac G6 2006 - 2010 3.5L V6 79QWCN: Brand: condition: New Detailed Applications Years: Vehicle: Engine: 2006 - 2010 Pontiac G63.5L.

part #: 79qwcn prices

  • $149.95-$279.95

specifications emissyste:

  • for makes: Pontiac
  • for years: 2006-2010
  • brand: Trq Vapor Canister Purge Solenoid Valve
  • mpn: 79qwcn
  • part type: Vapor Canister Purge Solenoid
  • engine: 3.5l V6
  • compatible make/model: Pontiac G6
  • compatible years: 2009 2006 2007 2008 2010 09 06 07 08 10
  • fitment info: Vapor Canister Purge Solenoid Valve
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

seller emissyste:

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  • # reviews: 23559
  • city: North Dartmouth, Massachusetts

returns emissyste:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

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  • type: Fixed
  • class: Economy
  • cost: $0.00
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offer emissyste:

  • options: Ship-to-home
  • started: March 30, 2026
  • availability: In Stock
  • sold: 0
  • quantity: 1

general emissyste:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

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for makes: pontiac, for years: 2006-2010, part type: vapor canister purge solenoid, engine: 3.5l v6, compatible make/model: pontiac g6, compatible years: 2009 2006 2007 2008 2010 09 06 07 08 10, fitment info: vapor canister purge solenoid valve, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 21072299295370773,
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