PCV Reroute & Resonator Delete Cap for 6.6L LLY/LBZ/LMM Duramax Chevrolet GMC (2004-2010)

$82.54
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Details
Brand
Model
Year
Engine Model
Chevrolet
Silverado 2500 HD
2004-2010
6.6L Duramax LLY/LBZ/LMM
Chevrolet
Silverado 3500 HD
2004-2010
6.6L Duramax LLY/LBZ/LMM
GMC
Sierra 2500 HD
2004-2010
6.6L Duramax LLY/LBZ/LMM
GMC
Sierra 3500 HD
2004-2010
6.6L Duramax LLY/LBZ/LMM
✅ Exact Fitment Guarantee | If you are unsure about compatibility, please contact us at service@egrperformance.com with your VIN number.
The PCV Reroute & Resonator Delete Cap is designed specifically for 2004-2010 6.6L Duramax LLY, LBZ, LMM engines in Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD trucks. This all-new kit vents crankcase blow-by effectively, reducing oil deposits in the engine and eliminating common issues like boot soak and intake gumming. Its venturi-style design ensures optimal pressure flow without restrictive baffles, making it a must-have upgrade for Duramax owners. Continue reading to learn more about its benefits, installation, and fitment details.
Shipping Details

Ontario CA / Springdale OH / Newark NJ

Package List

Complete Package Contents

  • 1x Reroute Fittings
  • 2x Reroute Port Plugs
  • 1x Resonator Plug
  • 1x PVC Pipe
  • 4x Flange Clamps
  • 1x ¾” 8Ft 100% Silicone Reinforced Hose (designed for oil applications)
Delivery Time

2-5 working days inland in the United States

Product details

Product Overview

  • The PCV Reroute & Resonator Delete Cap is a 100% brand-new upgrade kit for 2004-2010 6.6L Duramax LLY/LBZ/LMM engines.
  • It solves crankcase blow-by problems, reducing oil deposits and preventing damage to engine parts like intake manifolds.
  • The kit eliminates the need for the factory crankcase box, freeing up valuable space under the hood for other modifications.
  • Its streamline, angle-free routing ensures smooth pressure flow and virtually no oil loss, keeping your truck’s undercarriage clean.

Ideal For

  • Towing and Hauling: Prevents oil buildup and maintains engine efficiency, ensuring consistent performance when hauling heavy loads or towing trailers.
  • Daily Driving: Reduces maintenance needs by eliminating boot soak and intake gumming, keeping your Duramax running smoothly for daily commutes.
  • Commercial Vehicles: Extends part longevity and reduces downtime, making it perfect for work trucks that see frequent use.
  • Engine Performance Upgrades: Complements other performance mods by optimizing crankcase ventilation and freeing up under-hood space.
  • Long-Term Vehicle Ownership: Reduces oil deposits and part wear, lowering long-term maintenance costs for Duramax owners.

Core Advantages

  • Extended Engine Life: Vents crankcase blow-by to decrease oil deposits in the engine, while eliminating boot soak and intake gumming to extend the lifespan of critical engine parts.
  • Optimal Pressure Flow: Features a venturi-style design that eliminates restrictive baffles, paired with streamline, angle-free routing for better pressure flow and no oil dripping.
  • Virtually No Oil Loss: Prevents oil puddles under your truck, eliminating the need to clean up leaks and reducing oil waste.
  • Under-Hood Space Savings: Eliminates the factory crankcase box, freeing up room for additional modifications or easier access to engine components.
  • All-In-One Kit: Includes all necessary components for installation, so you don’t need to purchase additional parts.

Technical Specifications

  • Material: High-quality aluminum alloy for durability and resistance to corrosion.
  • Finish: Black Anodized for enhanced durability and a sleek, professional appearance.
  • Weight: Not Specified
  • Dimensions: Not Specified
  • Warranty: 1 Year Limited Warranty against manufacturing defects

Why Choose EGR Performance

  • Premium Quality Materials: Uses high-grade aluminum alloy and 100% silicone reinforced hose designed specifically for oil applications, ensuring long-lasting performance.
  • Precision Engineering: Engineered to fit perfectly with 2004-2010 6.6L Duramax LLY/LBZ/LMM engines, with a venturi-style design for optimal functionality.
  • Rigorous Testing: Each kit undergoes strict testing to ensure it meets industry standards for performance and durability.
  • Dedicated Customer Support: Email us at service@egrperformance.com for fitment questions, technical support, or warranty assistance.
  • Fast Shipping from USA Warehouse: Get your upgrade quickly with domestic shipping, reducing wait times.
  • 1 Year Limited Warranty: Backed by a 1-year warranty against manufacturing defects, giving you peace of mind.

Troubleshooting and Problem Solving

Common Issues After Installation

  • Check Engine Light: Often caused by loose connections or improper routing of the PCV hose.
  • Rough Idle: May occur if the PCV system is not venting properly, due to a clogged hose or fitting.
  • Reduced Power: Typically related to restricted airflow from a kinked or clogged silicone hose.
  • Coolant/Oil Leaks: Caused by loose flange clamps or improperly seated fittings.
  • Oil Puddles Under Truck: Indicates a leak in the silicone hose or a loose connection at the fittings.

Error Code Solutions

  • P0171: Fuel System Too Lean - Check for loose or disconnected PCV hoses, ensuring all connections are secure and the hose is not kinked.
  • P0440: Evaporative Emission System Malfunction - Verify the PCV reroute is properly vented and not causing pressure buildup in the fuel system.
  • P0520: Oil Pressure Sensor Circuit Malfunction - Ensure the PCV system is not leaking oil onto the sensor, and check sensor connections.

How to Reset Check Engine Light After Installation

  1. Use an OBD-II scanner to connect to your vehicle’s diagnostic port (located under the dashboard).
  2. Select “Read Codes” to confirm the error is related to the PCV system, then select “Clear Codes” to reset the Check Engine Light.
  3. Start the engine and let it run for 5-10 minutes, ensuring no new codes are triggered. If the light returns, recheck the installation for leaks or loose connections.

What to Do If Your Vehicle Loses Power After Installation

  • Turn off the engine and inspect the silicone hose for kinks, clogs, or loose connections—these can restrict airflow and reduce power.
  • Check the reroute fittings and resonator delete cap to ensure they are properly seated and secured with the flange clamps.
  • Verify the PCV system is venting correctly by disconnecting the hose and checking for consistent airflow.
  • If issues persist, contact EGR Performance technical support at service@egrperformance.com for further assistance.

Long-Term Maintenance Tips

  • Regular Inspection: Every 5,000-10,000 miles, inspect the silicone hose, fittings, and clamps for cracks, leaks, or wear.
  • Routine Maintenance: Every 15,000 miles, clean the reroute fittings and resonator delete cap to remove any accumulated oil or debris, ensuring optimal airflow.
  • Wear Parts Replacement: Replace the silicone hose every 30,000-40,000 miles or if it shows signs of cracking, hardening, or leaks.
  • Hardware Check: Every 10,000 miles, check the flange clamps to ensure they are tight and secure, tightening any loose clamps as needed.
  • Storage Tips: If your truck is stored for an extended period, disconnect the silicone hose and cap the fittings to prevent dust and debris from entering the engine.
  • Warranty Reminder: Following these maintenance guidelines will keep your 1 Year Limited Warranty valid.

Vehicle Fitment

This PCV Reroute & Resonator Delete Cap is specifically designed to fit 2004-2010 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD trucks equipped with the 6.6L Duramax LLY, LBZ, or LMM diesel engine. No special modifications or adapters are required for installation—this kit is a direct fit for the specified vehicles. There are no exceptions to fitment for these models; however, always verify compatibility with your VIN number if you are unsure. For 100% fitment confirmation, please send your VIN number to service@egrperformance.com.



  1. Dispatch Time: Orders will be shipped within 24 hours after successful payment.
  2. Delivery Time: 2-5 business days after dispatch (delivery speed depends on proximity to warehouse location).
  3. Return Window:7 days for unsatisfactory items45 days for quality-related issues
  4. Refund Processing: Refunds will be processed back to your original payment method within 2-4 business days after receiving the automated refund confirmation email (subject to bank verification).

Will this PCV Reroute & Resonator Delete Cap fit my 2008 Chevrolet Silverado 2500 HD with a 6.6L Duramax LBZ engine?

Yes, this kit is specifically designed to fit 2004-2010 Chevrolet Silverado 2500 HD trucks with the 6.6L Duramax LBZ engine, as well as LLY and LMM models.

How long does it take to install this PCV reroute kit?

The estimated installation time is 1-2 hours. Professional installation is recommended, but experienced DIYers can complete the install with basic tools.

Can I install this PCV Reroute & Resonator Delete Cap myself?

Yes, if you have basic mechanical skills and the required tools (socket set, torque wrench, etc.), you can install this kit yourself. However, professional installation is highly recommended for best results.

What are the benefits of a PCV reroute and resonator delete?

This kit vents crankcase blow-by to reduce oil deposits, eliminates boot soak and intake gumming, frees up under-hood space, and ensures optimal pressure flow with virtually no oil loss.

Will this kit void my vehicle’s warranty?

In most cases, this kit will not void your vehicle’s warranty. However, always check with your dealership, as modifications can sometimes affect warranty coverage for related components.

Is this PCV Reroute & Resonator Delete Cap legal in my state?

This kit is legal in most states for off-road or non-emissions-controlled vehicles. Check your state’s emissions laws before installation, as some states may restrict PCV system modifications.

Do I need a tuner for this PCV reroute kit?

No, a tuner is not required for this kit. It is a direct fit and works with your vehicle’s factory engine management system without any additional tuning.

How much horsepower does this PCV reroute kit add?

This kit does not directly add horsepower, but it prevents power loss caused by restricted airflow and oil buildup, helping your Duramax engine maintain its factory performance.

How much MPG gain can I expect from this kit?

While MPG gains are minimal, this kit can help improve fuel efficiency by reducing engine drag from oil deposits and ensuring optimal airflow, typically 1-2 MPG in most cases.

How often should I maintain this PCV Reroute & Resonator Delete Cap?

Inspect the kit every 5,000-10,000 miles, clean components every 15,000 miles, and replace the silicone hose every 30,000-40,000 miles.

What is the warranty on this PCV reroute kit?

This kit comes with a 1 Year Limited Warranty against manufacturing defects. Follow the maintenance guidelines to keep the warranty valid.

Do you offer technical support for installation?

Yes, EGR Performance offers dedicated technical support. If you need assistance, email us at service@egrperformance.com with your questions or concerns.

How long does shipping take?

Shipping is fast from our USA warehouse, typically taking 2-5 business days for domestic orders. Delivery times may vary based on your location.

Can I return this kit if it doesn’t fit my vehicle?

Yes, you can return the kit if it does not fit your specified vehicle. Contact our customer support at service@egrperformance.com to initiate a return and verify fitment issues.



Installation Difficulty Level

Moderate

Estimated Installation Time

1-2 hours

Required Tools

  • Socket Set
  • Torque Wrench
  • Screwdrivers
  • Pliers
  • Hose Cutters (for trimming silicone hose to fit)

Step-by-Step Installation Overview (3-5 Core Steps)

  1. Disconnect the factory PCV system and resonator from the engine, removing any mounting hardware or brackets as needed.
  2. Install the reroute fittings and resonator delete cap in place of the factory components, securing them with the included flange clamps.
  3. Route the included silicone hose from the reroute fittings to a suitable vent location, trimming the hose to the correct length if necessary.
  4. Secure all connections with the provided clamps, ensuring no leaks or loose fittings.
  5. Start the engine and inspect for oil leaks or abnormal pressure, adjusting connections as needed.

Important Note: No printed installation instructions are included. Professional installation is highly recommended. If you need technical support, please contact us at service@egrperformance.com.