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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

water bypass tube???

Old 09-28-2009, 01:13 PM
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water bypass tube???

what is the function of the water bypass tube?
Old 09-28-2009, 01:16 PM
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to heat up the heater core.
Old 09-28-2009, 01:33 PM
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the water bypass tube that is on the water pump???
Old 09-28-2009, 02:09 PM
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OKay, what motor are you talking about?
Old 09-28-2009, 02:13 PM
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95 4runner 6 cyl 3VZE
Old 09-28-2009, 02:29 PM
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That's the #2 oil cooler hose.
http://personal.utulsa.edu/~nathan-b...09waterpum.pdf
Old 09-28-2009, 02:30 PM
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On all cars that tune is just for the coolant yo go back through the block when the thermostat is closed to let the engine get to operating temp
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