Specifications include, but are not limited to: Inspect radiator/heat exchanger for leaks, foreign objects, blocked airways, and damage. Inspect radiator cap gasket and seating surface. Inspect hoses for leaking and other damage. Replace all coolant hoses. Inspect coolant level and add manufacturer coolant. Drain coolant, change thermostat, and perform a distilled water flush. Replace coolant with manufacturer coolant and bleed system as needed. Take coolant sample and submit to an accredited lab for analysis. Include analysis and recommendations in Service Report. Change coolant filter(s) with manufacturer filter after sample is taken. Inspect for worn or loose fan pulleys and belts. Replace belt(s). Inspect water pump for leaks, unusual noise, vibration and wear. Inspect block water heater for proper operation, thermostat settings and condition.