Dorman 47029 PCV Elbow Instruction Manual

1. Product Overview

The Dorman 47029 PCV Elbow is a direct replacement component designed to match the fit and function of the original elbow on specified vehicles. This part is engineered for durability and reliable performance within the Positive Crankcase Ventilation (PCV) system.

The PCV system is crucial for engine health, as it recirculates unburnt gases from the crankcase back into the engine's intake manifold to be re-burned. The PCV elbow facilitates the connection within this system, ensuring proper ventilation and preventing pressure buildup.

Image 1.1: Front view of the Dorman 47029 PCV Elbow. This image shows the overall shape and material of the elbow, which is typically made of rubber.

2. Compatibility

This PCV elbow is compatible with the following vehicle models and years. Always verify fitment using your vehicle's make, model, and trim level before installation.

• Chrysler Imperial: 1990, 1991, 1992, 1993
• Chrysler New Yorker: 1990, 1991, 1992, 1993
• Chrysler Town & Country: 1990, 1991, 1992, 1993, 1994, 1995, 1996
• Dodge Caravan: 1990, 1991, 1992, 1993, 1994, 1995, 1996
• Dodge Dynasty: 1990, 1991, 1992, 1993
• Dodge Grand Caravan: 1990, 1991, 1992, 1993, 1994, 1995, 1996
• Plymouth Grand Voyager: 1990, 1991, 1992, 1993, 1994, 1995, 1996
• Plymouth Voyager: 1991, 1992, 1993, 1994, 1995, 1996

3. Features

• Direct Replacement: Engineered to match the fit and function of the original equipment PCV elbow.
• Restores Functionality: Provides a reliable solution for replacing an original elbow that is leaking or has deteriorated due to heat and fatigue.
• Durable Construction: Manufactured from quality materials to ensure reliable performance and a long service life.

4. Installation

The Dorman 47029 PCV Elbow is designed for direct replacement. Installation typically involves removing the old, worn elbow and installing the new one in its place. Specific steps may vary depending on your vehicle's make and model. Always refer to your vehicle's service manual for detailed instructions.

General Installation Steps:

1. Ensure the engine is cool before beginning work.
2. Locate the existing PCV elbow on your vehicle. It is typically connected to the PCV valve and an intake manifold vacuum port or air intake hose.
3. Carefully disconnect the hoses or components attached to the old elbow.
4. Remove the old PCV elbow. Inspect the surrounding connections for any additional wear or damage.
5. Install the new Dorman 47029 PCV Elbow, ensuring a snug and secure fit.
6. Reconnect any hoses or components that were detached.
7. Start the engine and check for proper operation and any leaks.

Image 4.1: Side view of the Dorman 47029 PCV Elbow. This angle highlights the elbow's 90-degree bend and connection points.

5. Operating Principle

The PCV elbow functions as a conduit within the PCV system. Its primary role is to provide a sealed, flexible connection for the PCV valve or hose, allowing crankcase gases to be drawn into the engine's intake system. A properly functioning elbow ensures that the PCV system maintains the correct vacuum and flow, which is essential for efficient engine operation and emissions control.

6. Maintenance

The Dorman 47029 PCV Elbow is designed for long-term durability. However, as a rubber component exposed to engine heat and oil vapors, it is subject to wear over time. Regular inspection is recommended as part of routine vehicle maintenance.

Inspection Guidelines:

• Visually inspect the elbow for any signs of cracking, splitting, hardening, or softening.
• Check for oil residue or leaks around the connections, which may indicate a poor seal.
• Ensure the elbow is securely attached to all connecting components.

If any signs of wear or damage are observed, replace the elbow promptly to maintain proper PCV system function and prevent potential engine issues.

7. Troubleshooting

A failing PCV elbow can lead to various engine performance issues. If you experience any of the following symptoms, inspect your PCV elbow and system components:

• Rough Idle: A cracked or leaking elbow can create a vacuum leak, leading to an unstable engine idle.
• Increased Oil Consumption: A malfunctioning PCV system can lead to improper crankcase ventilation, potentially causing oil to be drawn into the intake.
• Engine Oil Leaks: Excessive crankcase pressure due to a blocked or leaking PCV system can force oil past seals and gaskets.
• Check Engine Light: A significant vacuum leak or PCV system malfunction can trigger a Check Engine Light (CEL) with associated diagnostic trouble codes.
• Visible Cracks or Splits: Physical damage to the rubber elbow is a clear indication it needs replacement.

If troubleshooting indicates the PCV elbow is faulty, replace it with a new Dorman 47029 elbow to restore proper system function.

8. Specifications

9. Warranty and Support

Manufacturer Warranty:

The Dorman 47029 PCV Elbow comes with a Limited Lifetime Warranty from Dorman Products. This warranty covers defects in material and workmanship under normal use and service. For specific terms and conditions, please refer to the official Dorman warranty documentation or contact Dorman customer service.

Customer Support:

For technical assistance, warranty claims, or further product information, please contact Dorman Products directly. You can find contact details on the official Dorman website or through your product retailer.