One problem related to crankcase (pcv) has been reported for the 2004 Volvo XC90. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Volvo XC90 based on all problems reported for the 2004 XC90.
2004 Volvo xc-90. Consumer states problem with crankcase vent the consumer received a second a opinion and was informed the throttle body needed to be cleaned.