my 98 olds intrigue has been overheating the past 2 days. My bf and I changed the water pump about 4 months ago and just changed the thermostat yesterday. It's still overheating.
We are thinking there might be air in the system (I can hear fluid gurgling inside the radiator and my hose that goes into the engine blocks vibrates when hot). there is a valve on top of my thermostat housing-is this what I use to get the air out? How do I do this (just unscrew the valve and turn the car on?)
the manual didnt tell us what to do.
thanks!!!How do I bleed air out of cooling system in my 98 Intrigue?!!?yes that is the one open it up and steam should come out do this intill a steady stream of coolant comes out of it. I always do it with the car on.How do I bleed air out of cooling system in my 98 Intrigue?!!?start your car and pull 1 of the heater hoses off, just for a second and then put it back on.How do I bleed air out of cooling system in my 98 Intrigue?!!?Try removing the radiator cap and letting the engine idle long enough to open the thermostat, i.e. get to operating temperature. Then top off the radiator tank and replace the cap.
Good luck.How do I bleed air out of cooling system in my 98 Intrigue?!!?first i would pressure test the system , to check for any leaks in the system , the gurgling sounds like it could be a head gasket leak, the intake stroke will force coolant into the cylinder and the commpression stroke will force air into the cooling system (explaining the gurgling sound). Another sign of head gasket leakage is to fill the coolant right full and look for a pattern of small air bubbles to appear or you can look under the oil cap to see if it is a milkshake like substance. Before condemming the head gasket it is best to exaust all other possibilities. It is possible, on the other hand that there is vapor lock (air in the system) in the system from the system being completely empty and filled again, but running the engine for 15 minutes with the rad cap off should fix that. Another possibility is that you bought a faulty thermostat, hey it does happen (test by putting in boiling water and seeing if it opens) an external leak explains the overheating and a low fluid level can cause the coolant to boil, causing the gurgling sound. But yeah, to answer your original question you are right in that valve is is for bleeding the cooling system. It is best if you can attach a clear hose to the end of the valve after you open it (with the engine running), so that you dont get coolant everywhere and so that you may see any air bubbles trapped in the system.
good luck!
