One problem related to radiator has been reported for the 2004 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 GMC Sierra 1500 based on all problems reported for the 2004 Sierra 1500.
The contact owns a 2004 GMC Sierra 1500. The contact stated the head gasket leaks radiator fluid into the motor. The contact took the vehicle to a certified mechanic that diagnosed that the engine head needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 130,000. The VIN was not available.