One problem related to engine knocking noise 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.
While driving on the highway with my two small children, the car made a knocking noise and driver console/dash stopped working. The lights went out, and all gauges went to "zero. " I no longer had turn signals either. I feared for our lives. I have done research, and have found that others have this same issue with 2004 Xc90s.