Sounds like you might have a head or head gasket problem, combustion pressure leaking into radiator/cooling system causing pressure build up (hose swelling) the noise could also be from this failure.
get engine warm so hoses swell, turn off engine remove spark plugs leave radiator cap on and pressure from cooling system as is(hoses swollen) wait 5-10 minutes crank over engine with plugs removed and keep clear of spark plug holes, put paper in front of spark plug holes if water comes out of spark plug hole or slight wetting of paper with water head or head gasket is at fault.
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Replace hoses they are bad. If its a clicking noise from the front of a v6 it is the timing belt hydraulic tensioner. When you replace that you will need to replace timing belt and water pump since the belt has to be removed for replacement anyway.
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