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Old 11-23-2009, 06:28 PM   #14
cre

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Pull the timing belt and look if the oil is coming from behind the black plate behind the cam gears. If so it's either the cam seals or the valve cover seals. If not the it's either the oil pump seal, the crank oil seal or you're leaking from between the head and the block.... has the head gasket been changed on this engine?

The coolant leak behind the water pump is either an eroded hard line assembly which runs along the side of the block and wraps around the back of the engine or the 90? hose which connects to it right under the thermostat tower. The hard line is no longer available from Toyota, if that's what's leaking you're going to have to either fab a custom replacement or buy a used one.

Switch to Toyota's red coolant, it has better dielectric properties.
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