2005 Equinox coolant boiling over but engine not overheating
#1
2005 Equinox coolant boiling over but engine not overheating
My 2005 Equinox has started pushing coolant out of the overflow reservoir (no radiator cap on this model) after driving but never indicates that it is overheating. Not sure if I am dealing with blockage? Bad thermostat?
#2
Try replacing the coolant reservoir cap. If this doesn't fix it and you are using at least a 50/50 blend of coolant & water, then you probably have a bigger problem such as a bad water pump or even a blown head gasket.