over heating 95 altima

[95altima]

i have a 95 altima the radiator and thermostat have been change but still the radiator is dry and over heats on visable leaks and no water in the oil please help

[180fan]

You've still got air in the system. It helps to have the front of the car lifted, the heater control set to "hot" and continue to top off the radiator until your coolant system is filled. Cap it, squeeze the upper and lower hoses and have the car run for just a minute. Let it cool off and top off the radiator again.

[Japtech947]

There's also a bleeder plug that's on housing on the left-side of the cyl head just follow the lower radiator hose upward and on the side of that housing is 10mm bleeder screw remove it then fill the radiator full of coolant until the coolant runs out of that bleeder hole then reinstall screw.Top off rad.

[95altima]

i will try that but where is the water going is it being boiled out ?

[rogoman]

After you've bled the air and filled the radiator, don't put the cap on right away; start the motor and let it run for a while until the coolant starts to warm up. At this point if any additional air burps up, then you'll have to add more coolant to top it off and now put the radiator cap on.

Keep an eye on the coolant level on a daily basis. If you're losing coolant and there are no external leaks anywhere, then there's a good chance that you may have a blown head gasket. Also look at the exhaust to see if there's a lot of vapor coming out which is also a good indicator of a possible blown head gasket.