How to Bypass Heater Core of Isuzu Trooper with 4JX1 Engine

There is a leak inside your cabin, especially to the passenger side, it is your heater core leaking, then you can bypass it instead of having it fully fixed. That's the easiest way to get rid of the leak inside the cabin. 

However, this alternative solution is ONLY useful if you are living in a tropical country or you don't need a heater. If you are living in places where you have winter season, you may want to fully repair it instead. 

Watch this video for the simple fix: 




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