Hi all,
My 1995 850GLT has developed an intermittent coolant leak that appears to be coming from the connection point between the underside hose and the expansion tank. I have disconnected the hose and inspected it (it looks fine) and the expansion tank (also seemingly fine) and have replaced the clamp with a new one tightened as much as I safely can without damaging the expansion tank.
I find most of the coolant leaks out when I come to a stop and it will dump about a cup of coolant out, sometimes more. I've also found that if I release the pressure by opening the cap once I've parked it significantly reduces coolant loss.
My question is this... could it be the thermostat? I had a problem with my 240 leaking around the water pump gasket when the car was shut off and replacing the thermostat solved this but I don't know if the
850 is similarly vulnerable or if I should be looking elsewhere. The radiator is less than 1 year old and the temperature guage never climbs beyond the 3 o'clock position.Oh, one other thing, it seems to have started about 2 weeks ago when I found that the top of the expansion tank filler cap had sheared right off, exposing the valves beneath. Once I replaced the cap (from the dealer) it started leaking out at the clamp.
There seems to be a significant pressure build-up.
Thanks in advance for any ideas, I hope to start looking at it this evening.
Cheeps, blurp