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they leak oil from the oil pump on the front of the engine
Sounds like you have a transmission leak.
There are a few things that can cause a coolant leak but in your case it is probably the water pump. When a water pump starts to go bad it will leak coolant from the bottom.
Brake fluid in a Toyota Sequoia could be leaking from several places. Check the wheel cylinders first as they are a common place to leak.
On the passenger side in the wheel well behind the front wheel. Pull the front passenger side wheel and remove the wheel well cover. The charcoal canister is attached to the firewall in the wheel well. The Leak Detection pump is in front of the passenger side wheel below the air cleaner assy.
Differentials were locked by vacuum pressure on a actuator on the front axle, if there is a problem with this actuator or with your vacuum system the front axle will not engage. You may want to remove the acy=tuator and clean it out, ot locate the vacuum leak in your system.
it is a vacuum pump you describe
your Toyota should have an overflow bottle to retain the antifreeze during normal operations. Unless it is overfull, I would be looking for a leak.
From experience with various Typhoon and Syclone owners I can tell you that the transmission will snap under harsh acceleration. To make the list short, transmission transmission mounts transmission oil lines front lower intercooler front lower intercooler pump wiring radiator thermostat exhaust manifold leak intake manifold leak wheel cylinders (rear) wheel axle seals (rear) caliper bolts stock exhaust system
oil can come from about any were, it could be coming from the rear main or the front you can ha gasket that you need to replace.
On the automatic transmission there are lines from the transmission to the transmission cooler that connect to the radiator
Check the line from the differential to the backing plate and inspect front of cylinder under drum.