2005 Nissan Sentra 1.8 over heating
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My 2005 Nissan Sentra is overheating, spewing coolant out the overflow while driving. Does not overheat in idle. Changed thermostat and radiator which did not help. Can not get air out of the system. Was thinking head gasket but it doesn't run rough and no white smoke from exhaust. Also, not sure if this is related, but heater blows cold air only and hoses to heater core stay cool. Any help is appreciated.
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Look above the thermostat, in the water pump bolts straight up from center of thermostat housing is a bolt w/a washer under it. That is a bleeder for the cooling system. Remove for air to escape, then insert loosely to further remove remaining air in system. Hope this helps, does for me.
Currently I'm facing the exact same problem on 2005 Nissan Sentra 1.8L, I'd appreciate your update with the solution that fixed the problem?!
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Thank you very much. I found it and bled what I thought was all the air out of it. Heater started blowing hot air. I went for a test drive then it started overheating again. Either I didn't do it correctly or air is entering the system somewhere. Just from talking to a friend on the phone, he thinks it might be the water pump, your thoughts?
Keep trying prob more air, hope you didn't create another problem. You drove it, try and bleed it some more. Some times several attempts before it's full.