Hose between intake and water pump

Whats it for? And do you have to run it?

460bronco wrote:Whats it for? And do you have to run it?

It is a by-pass to relieve water pressure when the thermostat is closed so, you don't blow open the heater core. Race type vehicles don't need a water by-pass.

rmcomprandy wrote:

460bronco wrote:Whats it for? And do you have to run it?

It is a by-pass to relieve water pressure when the thermostat is closed so, you don't blow open the heater core. Race type vehicles don't need a water by-pass.

I just finished putting my intake back on I know the next time I pull the engine for a for a freshen up I going to weld a plug in the outlet on the water pump. That Little peace of hose it the hardest thing to get on for sure.

Thanks for the replies.  The ports are now blocked off