1992 Volvo 960 / 199K miles
I'm trying to figure out where the coolant in my car is going. Whatever the leak is, it's enough so that the low coolant light gets tripped every 2-3 weeks. My commute is a little over 8 miles each way so this isn't over the course of a whole lot of driving.
A few weeks ago I took it in to have the cooling system pressure tested. They found a very slow drip under pressure at the lower radiator fitting and tightened it which stopped the leak. I also replaced the radiator cap which had a couple of hairline cracks.
I've inspected all visible connections and don't see any signs of dampness. The water pump weep hole is dry after driving and I don't see any leaks around the perimeter. No sweet/strange smell of antifreeze in the cabin. I thought maybe it was a head gasket issue but compression results are (front-> back)
190
180
180
190
175
180
No signs of transmission fluid/coolant mixing either, and the radiator was replaced 8 years (40K miles) ago. Any ideas what I'm missing here?
I'm trying to figure out where the coolant in my car is going. Whatever the leak is, it's enough so that the low coolant light gets tripped every 2-3 weeks. My commute is a little over 8 miles each way so this isn't over the course of a whole lot of driving.
A few weeks ago I took it in to have the cooling system pressure tested. They found a very slow drip under pressure at the lower radiator fitting and tightened it which stopped the leak. I also replaced the radiator cap which had a couple of hairline cracks.
I've inspected all visible connections and don't see any signs of dampness. The water pump weep hole is dry after driving and I don't see any leaks around the perimeter. No sweet/strange smell of antifreeze in the cabin. I thought maybe it was a head gasket issue but compression results are (front-> back)
190
180
180
190
175
180
No signs of transmission fluid/coolant mixing either, and the radiator was replaced 8 years (40K miles) ago. Any ideas what I'm missing here?