Hello there. I'm reaching out for some suggestions as to what might be leaking in my 2004 Land Rover Discovery (139,000 miles). Have had coolant leak for quite a while. Replaced water pump, thermostat, valley pan gasket. Had head gaskets tested and was told no problem there. Was leaking heavily before the valley pan gasket replacement. Now the leak has moved. It's not overheating. Got home yesterday and saw steam coming from under hood. Opened it to see what looks like coolant leaking from where the spark plug wires connect. Any ideas? Thanks, in advance.

 

you need to pressure test you cooling system to find your leaks.

 

When you say it is not overheating, what are you going by? If gauge in instrument panel, chances are you may be overheating. That gauge is worthless, if it ever goes near red, chances are, damage is done.