Standard Ignition VC-238 Distributor Vacuum Advance

Reliable Distributor Vacuum Advance for Buick and Pontiac Vehicles

The Standard Ignition VC-238 distributor vacuum advance is designed to provide precise ignition timing adjustments for select Buick and Pontiac models. This component features a single hose connector, ensuring compatibility with the vacuum system of your vehicle's distributor.

• Single hose connector for vacuum advance
• Compatible with Buick Bonneville, LeSabre, Skylark, and Pontiac Firebird, Grand Prix, Catalina, Grand LeMans, LeMans models
• Part number VC-238 for easy identification
• Engineered to maintain proper ignition timing under varying engine loads

Product Details and Compatibility

The Standard Ignition VC-238 distributor vacuum advance is specifically designed to work with ignition systems on Buick and Pontiac vehicles, including the Bonneville, LeSabre, Skylark, Firebird, Grand Prix, Catalina, Grand LeMans, and LeMans. This vacuum advance unit features one hose connector, which interfaces with the vacuum line on the distributor to adjust ignition timing based on engine vacuum. Proper vacuum advance operation helps optimize engine performance and fuel efficiency by advancing ignition timing during light load conditions.

Common Applications and Problem Resolution

• Corrects ignition timing issues caused by faulty vacuum advance
• Improves engine performance and throttle response
• Reduces engine hesitation and stalling during acceleration
• Helps prevent poor fuel economy related to ignition timing
• Resolves vacuum leaks at the distributor advance mechanism

Installation Notes and Tips

Installation of the VC-238 distributor vacuum advance requires disconnecting the vacuum hose from the old unit and attaching it to the single hose connector on the replacement part. Ensure the vacuum line is free of cracks or damage before installation. Verify that the vacuum advance unit is securely mounted to the distributor and that the hose connection is airtight to prevent vacuum leaks. Consult the vehicle’s service manual for specific distributor removal and installation procedures.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The VC-238 distributor vacuum advance undergoes quality control testing to ensure reliable performance. This part is backed by Standard Ignition’s limited warranty, covering defects in materials and workmanship under normal use.