#Toyota super long life coolant pentosin drivers

If not it would leak and the Inverter coolant would be full of air. There's a air bleed petcock up top they must use. The dump bolt under on the trans and the air bleed petcock. There's only 2 mechanical openings for the Inverter system. Becasue if there's a leak it will have air in it also. Never heard of a Inverter coolant leak before. If quiet and good steady turbulence then there may be a small leak. If any gurgling or intermittent sounds like the pump is going dry for a second or 2 there's air in it. It should be smooth and have a soft whine to it like a aquarium pump. Then put you ear as close to that pump as you can and listen to it. Put the car in READY and wait till the engine shuts off so its quiet.

#Toyota super long life coolant pentosin drivers

That little black electric water pump can be found right behind the drivers side headlight. Or with the car in Ready listen to the pump itself.

Should have good and steady movement of fluid. The way to check for air lock or a failed pump is to make the car READY and open the reservoir and look for turbulence in the coolant reservoir reflecting pump flow. That takes a long time to disperse and over time as air evaps it leaves a void and fluid shows low. It may not be leaking it may just have a bad air lock caused by shoddy bleeding. You may be able to see it squished out so don't mistake that.

Also they use a pinkish colored sealer between If you suspect a leak I suggest you hose off the area in question with carb cleaner and rag it clean then any further leaks will be easily detected. Its dump bolt is one of the large bolts under there pretty close to the dump bolt for the trans. The residue may be from when they dumped the Inverter coolant.