Coolant Leak!

Hi guys !
I'm just learning mechanic with my 4runner, I bought it a couple of month from a car seller, at first I was running fine, but now I drove it 1k and everything is breaking ! The problem start with a gas leak, it was a bad fuel line, so I changed it, while removing the intake plenum to fix it, I change the valves gaskets covers because they were leaking too! Everything was fine but now another leak appeared and it's seems it's coolant, i cleaned as I could everything but impossible to see where it's coming from! I'd say it's coming up the transmission and behind the engine it can be the same hose as the one you showed but before to take the intake off I wanted to be sure that I have to do it to see what can it be?
And I didn't really understood why did you change your TB because of a leak coming from behind the engine? Is that hose go from behind the engine to the front ? Which means that I will have to open the TB cover and take it off if it's the same hose as yours ? I'm not very sure of my skills to remove the TB and I'm definitely too poor to take it to the mechanic !
Any advices ?
And what was the name of that hose? Was it expensive?
I'm French so excuse my English !
And thanks all of you for sharing all theses info !!
 
I'm going to definitely going to replace the timing belt, water pump and that No.1 water bypass hose. Once I get it apart I will check all the other lines and I may have a leaky injector so I might just do everything that needs replacing while the manifolds off.

Again thank you for your help, you gave me hope! Haha

Did this correct your problem? I believe I am having a similar, if not the same problem with my '95.
 

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