Frustrated here. Last time I drove the car (I bought it last year and am trying to recommission it to reliable driving status), I got to my destination and had an active coolant leak coming from the hose between the water pump and thermostat housing. It took a long time for me to gain motivation to do the job, but I finally did it last week, also replacing the thermostat (which was stuck open) and housing gasket.
Today I took it for a drive to see if driving it would bring it up to temperature (the gauge has never read in the normal range, likely owing to the stuck open thermostat). Instead of coming up to temperature, the low coolant light came on. I got it home and had an active leak in the same area as the previous leak where I’d replaced the hose between the thermostat housing and water pump.
When I did the job, I thought that I probably should also be replacing the hose clamps, but I did not. Today I got a pair of brand new hose clamps to replace the old, topped off the coolant, started the car, and I STILL have a coolant leak there.
I cleaned it all up so I could see if I could determine exactly where the leak is coming from. It is coming from where the replaced hose slips onto the waterpump. The hose clamp is tight, the hose is seated all the way on the waterpump, and the hose clamp is on the hose only where it is over the waterpump male orifice (hmm, is that the right terminology…:?)
I dried everything up and with the car NOT running, just stared at that interface between the hose and the water pump. Everything is secure, but every 30 seconds, I can see coolant start to form a little drip at the bottom of that hose. If I start the car, the leak there becomes more active.
I suppose it is possible there is a crack in the waterpump? I hated taking that hose off – it was ok because I had to replace the thermostat. But this time I don’t have to replace the thermostat, and I don’t think I can slip that hose off without removing the thermostat housing.
Anyway, venting my frustration. Not sure there’s any guidance to be given, but I just wish I knew where the leak emanated from so I could just address it and be done with it. So much left to do on this car that it’s frustrating that something so simple is sidelining me.