Weird leak..

[fr3ak5how]

The past few weeks I've noticed a weird thing happening. I'm getting a standing coolant leak at the pump where I put an ICT heater hose bypass on my pump.. So Thing is, it only leaks when the truck is off and cold, like not driven for the day. It's my daily so I'm only seeing a puddle on Saturday mornings when I'm off work. As a note My engine does hold water pressure for a very long time too, maybe contributing maybe not..I'm wondering if the pressed in heater hose barbs are starting to loosen inside the pump or let coolant past them. Any other ideas..not sure if this is a known thing. Its a 2012 camaro SS pump.

 

[fast 99]

Have seen coolant leaks that only occur when vehicle is cold, especially plastic tank radiators. Holding pressure for long periods shouldn't be a problem as long as it isn't excessively high.