Take out the lower grill passenger side, locate red plastic screw at bottom of right of radiator. undo header tank filler first WHEN COLD! then drain
Jeep WJ Grand Cherokee 4.0L engine -
Draining the cooling system
WARNING: DO NOT REMOVE THE
CYLINDER BLOCK DRAIN PLUGS OR LOOSEN THE RADIATOR DRAINCOCK WITH SYSTEM
HOT AND UNDER PRESSURE. SERIOUS BURNS FROM COOLANT
CAN OCCUR.
1. DO NOT remove radiator cap
first. With engine cold, locate radiator draincock on the right lower
side of radiator facing to rear of vehicle.
2. Attach one end of a hose to
the draincock. Put the other end into a clean container. Open draincock
and drain coolant from radiator. This will empty the coolant
reserve/overflow tank. The coolant does not have to be removed from the
tank unless the system is being refilled with a fresh mixture. When tank
is empty, remove radiator cap and continue draining cooling system. To
drain the engine block of coolant, remove the cylinder block drain plug,
located on the side of cylinder block below the exhaust manifold.
Jeep WJ Grand Cherokee 4.7L engine - Draining
the cooling system
WARNING: DO NOT REMOVE THE CYLINDER BLOCK DRAIN
PLUGS OR LOOSEN THE RADIATOR DRAINCOCK WITH SYSTEM HOT AND UNDER
PRESSURE. SERIOUS BURNS FROM COOLANT CAN OCCUR.
1. DO NOT remove radiator cap
first. With engine cold, locate radiator draincock on the left lower
side of radiator facing to rear of vehicle.
2. Attach one end of a hose to
the draincock. Put the other end into a clean container. Open draincock
and drain coolant from radiator. This will empty the coolant
reserve/overflow tank. The coolant does not have to be removed from the
tank unless the system is being refilled with a fresh mixture. When tank
is empty, remove radiator cap and continue draining cooling system. To
drain the engine block of coolant, remove the cylinder block drain plug,
located on the side of cylinder block below the exhaust manifold.
Hope this help (remember rated this post).
Should be a drain **** at the bottom of the radiator that unscrews out. It looks like a wing nut has been welded to a bolt on the end of it. Another way to do this is just pull off the bottom hose.
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