Question about 2001 Lincoln Navigator
Replaced radiator hoses & thermostat. Tried to add back in coolant, but it only held 3 gallons. System is suppose to hold 7 gallons. Never found engine coolant drain plug. Radiator plug is clogged. Upper 1/3 of radiator is all that gets warm during operation. Besides getting a new radiator, what else could be wrong? If is was the heater core, I would be getting leakage in the passenger floor board, correct? Someone said it could be head gasket. How do you diagnose that?
The Navigator has rear air, so coolant lines run to a heater core in the rear. It will help if you elevate the front of the truck on a set of ramps or incline. Turn the heat for both front and rear. Run the truck and add coolant as needed until all the bubbles come out of the coolant tank. You can tell when you get coolant to the rear when hot air blows from the vents. By raising the front of the truck you allow the the air in the lines to bleed to the front.
Posted on Aug 31, 2009
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Posted on Jan 02, 2017
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