1994 TOYOTA Camry V6 coolant leak

I've had "cold water leaks" from water pumps. This manifests as no coolant leakage so long as the engine is running but.... let is sit to cool down overnight ... and the next morning you'll have a puddle under the car, right under the water pump. Time to replace the pump as the "mechanical seal" is toast.

I had almost this exact same problem on my wife's 93 V6 camry just last week. I ended up using a coolant dye and UV light to trace the leak. Very similar behavior in that it was only leaking after an engine cooldown. Turns out it was the O-ring on the water inlet tube where it goes into the thermostat housing. Replaced it and it has not leaked a drop since.

Before you go tearing into a water pump, I would at least use a tracer dye to pinpoint the leak to make sure. It could be dripping down from the water outlet at the top or underneath the intake manifold from the other water connections under there. If you have never had the water pump replaced on the vehicle, it could very well be that also.

davemac

Hi Davemac,

Thank you. I will give it a try. : )

Philip,

Thank you for the response. : )

Dendin