1995 Volvo 940 Too Much Coolant? Issues?

[difflock54]

You need to check the radiator spigot to which the radiator hose is attached to for cracks.
If cracks exist the coolant cannot expand and push coolant back to the coolant reservoir as the system is unsealed.
As you have witnessed a leak at the spigot/hose connection that is your starting point to reseal the coolant system.

[difflock54]

Volvo temperature gauges are not super sensitive therefore when the needle moves from the normal range to the RED the motor is very hot and damage can occur quickly.

[Las940]

You need to check the radiator spigot to which the radiator hose is attached to for cracks.
If cracks exist the coolant cannot expand and push coolant back to the coolant reservoir as the system is unsealed.
As you have witnessed a leak at the spigot/hose connection that is your starting point to reseal the coolant system.

Thank you for the clear explanation. I noticed that if I squeeze the lower radiator hose, I can hear air escaping from the upper radiator hose where it meets the radiator. Note that the clamp is tight to secure the connection. Sounds like the radiator spigot has a crack that is allowing coolant/air to escape, thus, eliminating the efficiency of the cooling system vacuum.

My new question is: Is it possible to repair this type of crack, or is it recommended that I replace the radiator? I know this varies on a case-by-case basis, but what is recommended in general?

Thanks again.

[difflock54]

Usually needs a new radiator.
Repairs sometimes fix it but it could recur again later anyway.
Care needs to be taken whenever manipulating hoses onto the spigots to avoid damage to the radiator.
Especially the plastic ones, they can be quite brittle.
I don't recommend any radiator stop leak products for this. Do it properly