Vacuum Transmitting Valve (VTV)

Fig. 65 Testing Vacuum Transmitting Valve:

1. Remove the vacuum transmitting valve (VTV) from the vacuum line.
2. Air should blow from B (Black) to A (Gray) without resistance. Fig. 65
3. Air should NOT flow from A to B.
4. If a problem is found, replace the VTV.
5. Reinstall the VTV in its vacuum line.