Bleeding Cooling System
Always bleed air from cooling system after replacing coolant. Bleed cooling system as follows:
- Set heater for maximum heat. Remove radiator cap. Drain coolant reservoir. Fill coolant reservoir to MAX mark with 50/50 water-coolant mixture.
- On 3.5RL, loosen bleed bolt on top of thermostat housing and fill radiator with 50/50 water-coolant mixture to base of filler neck. Close bleed bolt when coolant flows out without bubbles. Tighten bleed bolt to 87 INCH lbs. (9.8 N.m).
- On all other models, fill radiator to base of filler neck with 50/50 water-coolant mixture.
- On all models, with radiator cap removed, start and operate engine to normal operating temperature. Add coolant as necessary. Tightly install radiator cap, run engine again and check for leaks.