I have a coolant leak that I thought was the water pump. Changed it and the leak is still there. It's difficult to pinpoint the exact place that's its leaking. Any ideas?

 

It would be a lot easier if we knew what you were working on.

Year and engine.

 

2002 ranger 4.0 4x4

 

My best guess is the timing chain cover but I cant pinpoint it. I've used a mirror but still cant be sure

 

Common leak point on the 2001-2011 4.0l sohc engine is the plastic thermostat housing, it cracks or gasket leaks

Also pin holes in hoses spray an invisible stream out when cooling system gets pressure, so leak shows where it ain't, and ain't there when cold, lol

 

Thanks but I can see the thermostat housing and its not coming from that. The system doesnt even need to be under pressure. The truck isnt even running and you can pour water into the radiator and a several seconds later water is a steady dripping

 

i have a problem too with leaks my mech at speed shop told me thehouseing or water pump could be uneven you might have to file down the surface and reseal also my problem was the water pump i had on my ranger was chrome the chrome cast was not smooth weather that is ur problem its worth checking in the end we ended up putting a seal two part to the pump it stop the leak good luck

 

I started it wasnt the waterpump