Overheating

2002 OLDSMOBILE ALERO
160,000 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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CHARLES MOBLEY
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  • 4 POSTS
things i have done: changed thermostat, flushed heater core, flushed radiator, bled system each time. within a mile it will run hot and boil out the reservoir.
Feb 24, 2018 at 4:18 PM
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SATURNTECH9
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So is your radiator fan coming on when it is running hot? If the fan is running is it blowing out cold air?
Feb 25, 2018 at 8:53 AM
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CHARLES MOBLEY
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Radiator fans come on.Yes. when everything is hot and i open the bleeder value only steam comes out.
Feb 25, 2018 at 2:12 PM
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SATURNTECH9
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So when the radiator fan come on is it blowing out cold air?From what your saying it sounds like there is air in the cooling systeM.I wouldn't be opening the bleeder screw when it's hot.
Feb 25, 2018 at 10:46 PM
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SATURNTECH9
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Please follow the filling procedure I posted the bleeder screw stays open while filling.When a steady stream of coolant comes out of the bleeder screw close it.Then finish filling the cooling system.
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Feb 25, 2018 at 10:54 PM
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CHARLES MOBLEY
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  • 4 POSTS
okay, did that and it still runs hot and push coolant out of the reservoir.
Feb 26, 2018 at 3:43 PM
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CHARLES MOBLEY
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fixed my over heating problem, replaced reservoir and cap.
Feb 27, 2018 at 3:25 PM
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STRAILER
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Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
Mar 2, 2018 at 11:25 AM