One problem related to cooling fan has been reported for the 2003 Buick Rendezvous. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Buick Rendezvous based on all problems reported for the 2003 Rendezvous.
Cooling system continues to get very hot after thermostat was replaced. If ac is on temperature gauge stays 3/4 quarters of the way. Gm tested cooling fan operation and both fans are running. Pressure tested system for leak. Found rear head gasket leaking fluid. Per gm head gaskets would need to be replaced. Heads would need to be sent out and milled. Parts and labor would be around $1849. 22.