Quest Minivan XE V6-2960cc 3.0L SOHC MFI (VG30E) (1998)
Evaporative Check Valve: Testing and Inspection
FUEL TANK VACUUM RELIEF VALVE (Built into fuel filler cap)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kglcm2, 2.22 - 2.90 psi)
Vacuum: -6.0 to -3.5 kPa (-0.061 to -0.036 kglcm2, -0.87 to -0.51 psi)
3. If out of specification, replace fuel filler cap as an assembly.
CAUTION: Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may come on.