Question about 1994 Nissan Pathfinder
It does not matter. It only flows through there and and will cause any issue if it is "backwards". As long as it is cooling.
Posted on Apr 27, 2010
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Posted on Jan 02, 2017
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Jul 18, 2015 | Cars & Trucks
Stand in front of the car, open the hood, and face the engine.Where is the lower radiator hose 99
On the left hand side of the radiator, at the top, is the upper radiator hose; which goes to the upper water pump connection.
On the right hand side of the radiator, from the bottom, is the lower radiator hose; which goes to the lower water pump connection.
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Remove the pressure cap. Place it aside for the new radiator.
Drain the coolant into a drain pan. The drain valve is located at the bottom of the radiator. Twist it counterclockwise until the fluid starts to drain. Close the valve when the coolant stops draining.
Locate the transmission lines at the bottom of the radiator. Ensure you mark both of the lines so you will know which one goes where. Unscrew these with a line wrench. Plug the line with a towel to prevent the transmission fluid from leaking out.
Unscrew the radiator hoses at the top and bottom of the radiator. The hoses are held on by hose clamps that can be loosened with a flat head screwdriver. Slide the hoses off the radiator with your fingers after the hose clamp is loosened.
Pry the overflow hose off with your fingers. The hose slides over a tube at the neck of the radiator.
Unscrew the mounting bolts at the base of the radiator. There will be one bolt on each side which can be unbolted with a socket wrench.
Unsnap any sensors connected to the radiator. They will have quick connect fittings that can be undone by separating the tabs and pulling apart.
Unscrew the fan shroud with a socket wrench. The fan shroud will slide off the top of the radiator. You can also remove the cooling fan as it is held onto the fan clutch by four small bolts. You will need a socket wrench to remove.
Lift the radiator out from the hood. You may need assistance as the radiator can be heavy and awkward to lift.
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