My wife's '95 855T, with 205,000 miles, has developed a leak I'm having a tough time finding. When she parks the car after driving home there's a steady drip under the radiator. I'm topping up the coolant expansion tank weekly and it's usually empty when I do. One day after work it was dripping and I pulled off the lower air deflector and the radiator is dry. I replaced the radiator about 100,000 miles ago as the original developed a leaking tank seal. I don't see any evidence of this being the case now.

The odd thing was, that the engine was warm, the radiator hoses were warm, but the water dripping from the air deflector was cold. Almost like AC condensate. It's about time to change the T-belt again so this time I'm replacing the water pump with a Volvo OEM too.

All the hoses are dry but the oil cooler fittings are seeping oil at the side tank so I have new seals and clamps on the way, along with new upper and lower hoses. I did find a short (3") hose on a metal line behind the head that is blown up like a balloon so I'm replacing that today.

Any ideas on this mystery leak? Coolant is clean, oil is clean, ATF is clean.

Erwin