So on a recent thermostat change and subsequent coolant burp.. I noticed that after taking it for a drive and getting up to temp, there was still a bit of the heater core gurgle. Pull in to the drive, and squeeze the top rad hose, its soft. Weird. I take this as a safe time to open the little rad cap on the "flush T" I installed in the heater core hose. Although the coolant was hot, there was no system pressure. I rigged up my funnel and hose and added the coolant mix.
I also ran the engine with the funnel hanging and full. After a bit I noticed the level going down, so I added more. However, this was filling the coolant reservoir tank by the PCM as I noticed after I filled the funnel for a second time.
Isn't the cap supposed to keep the tank cut off from the system until pressure is needed to be bled there? And then also when the pressure subsides and it wants to suck the coolant back in to the system from the tank?
I feel as though with no pressure after a drive I either still have a HUGE air bubble somehow trapped somewhere or a dead radiator cap not holding back ANY pressure. As possibly evident by it filling the reservoir bottle via the heater core hose filling.
Thoughts? I am going to get a new cap and see what it does, as I am sure the one that is on there is near original.. if not at least 10+ years old.
I also ran the engine with the funnel hanging and full. After a bit I noticed the level going down, so I added more. However, this was filling the coolant reservoir tank by the PCM as I noticed after I filled the funnel for a second time.
Isn't the cap supposed to keep the tank cut off from the system until pressure is needed to be bled there? And then also when the pressure subsides and it wants to suck the coolant back in to the system from the tank?
I feel as though with no pressure after a drive I either still have a HUGE air bubble somehow trapped somewhere or a dead radiator cap not holding back ANY pressure. As possibly evident by it filling the reservoir bottle via the heater core hose filling.
Thoughts? I am going to get a new cap and see what it does, as I am sure the one that is on there is near original.. if not at least 10+ years old.