Please help!!!! Coolant leak

[MattyS197]

I have small coolant leak and I believe it may be coming from this hose but I cannot find out exactly what it’s called. It’s connected to the water pump, and I looked up water pump hose but I cannot find a hose that looks like the right one. Can someone please tell me what it may be called exactly so I can get the right hose. Thank you

 

[JimC]

Take a look at the thermostat housing. They are notorious for splitting at the seam on the 4.0 (not a matter of "if" only "when"), usually on the back side. Quite often it is misdiagnosed as the water pump or a hose.

 

[MattyS197]

Hello thank you so much for ur reply. It’s very funny you say that, I actually already replaced the thermostat housing however I did look at it again and I saw a bunch of coolant sitting on top in the Motor under the intake manifold. I do think the housing I got from auto zone last year went bad and ur probably right. It was just odd because this time the coolant was coming from above the bell housing and in front of the car. I assume this was happening because the coolant was fillling the top of the Motor and then was spilling from the back of the motor and the front. I did a pressure test and the leak seems to be somewhat small because it only loses 1-2 psi every few minutes. I’m at AutoZone now and I’m gonna put another housing in to see what happens. Thank you for the help

 

[JimC]

It isn't unusual that the thermostat housing fails multiple times as you experienced. That's why it is better to get the aluminum housing (I think it is available on Amazon) so you don't have to worry about "when will it fail again"

 

[JimC]

And yes, looking at those pictures of under the intake manifold, it looks like the housing split again.