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Hi there, I have a coolant leak on my 97 LS400. The level in the coolant reservoir keeps dropping slowly so I have to top it off once every few weeks. There's no puddle of coolant on the ground so it's a small leak. This morning, I've popped the hood to look for the leak & I've found a suspected spot near the firewall (see photo below). I see the coolant residue, it's pretty dried but I believe that's where it leaks. Would like to know if this is a valve where the heater core is connected to & can it be repaired instead of buying a new one? Also, I see a cable attached to the right of this valve. Does anyone know how it works? Thank you
Hi there, I have a coolant leak on my 97 LS400. The level in the coolant reservoir keeps dropping slowly so I have to top it off once every few weeks. There's no puddle of coolant on the ground so it's a small leak. This morning, I've popped the hood to look for the leak & I've found a suspected spot near the firewall (see photo below). I see the coolant residue, it's pretty dried but I believe that's where it leaks. Would like to know if this is a valve where the heater core is connected to & can it be repaired instead of buying a new one? Also, I see a cable attached to the right of this valve. Does anyone know how it works? Thank you
As you assume, it is a valve where the heater core is connected. I don't think it can be repaired. Replacing to a new one is the only way to go. The cable is driven by the servo motor which controls the room temperature.
Coolant Leak Question
