OEM 2005 Lincoln Town Car Brake Booster

2005 Lincoln Town Car Brake Booster Parts Questions & Experts Answers

• Q: How Can You Service and Repair a Vacuum Brake Booster on 2005 Lincoln Town Car?

  A: The first step when servicing or repairing a vacuum brake booster requires checking if the hydraulic brake system has fluid leaks or insufficient content. After setting the transmission to NEUTRAL you should first stop the engine and execute the parking brake control before releasing three brake pedal applications to drain all vacuum. The brake pedal should descend when you start the engine while keeping your foot pressed at constant intensity because this indicates normal vacuum system operation. To diagnose the condition inspect the check valve portion of the vacuum booster hose while checking for manifold vacuum when the engine idles in NEUTRAL gear mode. The previous testing sequence must be redone while the hose connects to the power brake booster check valve provided manifold vacuum exists. A new power brake booster needs installation if the brake pedal remains stationary during testing. Wait at least 10 seconds for quick engine idling and turn off the engine to enable the vehicle to stand for 10 minutes. Measure a force of 89 N (20 lb) using the brake pedal and check for the same pedal feel which was observed during engine operation. The lack of power assist is indicated by a stiff brake pedal; at this point you must replace the power brake booster check valve and check for improvements. A test should be performed to bleed the hydraulic system when you sense brake pedal sponginess.