Greetings, I'm new here and new to Subaru. I acquired a 1997 Impreza OBS about a week ago and unfortunately I noticed on Saturday that it was leaking, no, dumping coolant. See video:
It was difficult for me to figure out where it was coming from but I decided to try the thermostat gasket. I installed a new one and the issue appeared to go away. Yesterday after driving the car, however, I noticed some more coolant loss, though not as much and it only seemed to happen after the car had been run and then stopped. I pulled the radiator cap and poured coolant directly into the radiator and in a matter of seconds heard it dripping out onto the ground.
Here I laid under the car and squeezed the lower radiator hose and some coolant came out.
My guesses are:
1. Warped thermostat housing (read this elsewhere, no idea really).
2. Water pump is no longer sealing to the engine properly
3. Heater line connecting to the water pump is cracked or loose. I don't know because I can't see it.
4. Water pump has failed. This seems to be too much coolant to be coming from the weep hole and while I've never experienced a bad water pump, it understand that they can be noisy. Mine is not.
Thanks for any advice anyone can offer. This is really stressful because I bought this high-mileage but well-maintained car from a friend as a quick solution to my car-less problem and barely a week in, and I have this, and not a lot of money to deal with it. If it's water pump I wonder what the cost might because of how much has to come apart to fix it.