Service Procedure: Overview
2.5L L4 CYLINDER HEADBLOCKED COOLANT PASSAGES:
It is necessary to make a probe out of one of the following:
^ Metal coat hanger - Straightened and cut approximately 12 inches long.
^ Dipstick - Cut off twisted end.
Place a permanent mark 3.5 inches and 4.5 inches from one end of the probe. Then one inch from this same end, put a 45 degree bend in the probe (see Illustration).