Hey guys,
So I'm stumped here, there is a small metal pipe that comes off of the back of the thermostat housing that further leads to one of the heater hoses. The end of this metal heater pipe that goes into the thermostat housing has an O-ring seal. My question is .. is there anything else that holds this heater pipe in place? .. the reason why I ask is that in my 2001 Grand Prix SE, this pipe keeps coming off under pressure when car is running, I was wondering what Pontiac uses to seal this pipe in place. Does anyone know? .. please help