For 1990-2009 cars only
Power Brake Booster Push Rod Gauging Vacuum Brake Booster
Tools Required
J 37839 Power Brake Pushrod Height Gauge
- Gauge the vacuum booster with 85.0 kPa (25 in Hg) vacuum or maximum engine vacuum.
- Check the maximum and minimum piston rod length using J 37839 .
- If the piston rod is not within limits, obtain a service adjustable piston rod, and adjust the rod to the correct length.
