why is my 2001 Oldsmobile Alero overheating

Asked by Brad Jul 26, 2020 at 11:40 PM about the 2001 Oldsmobile Alero GLS

Question type: Maintenance & Repair

Car runs normal sometimes and then it'll overheat sometimes just change
thermostat did good for about 30 minutes and started doing it again off and on
does the same thing no heat water bubbling in Reservoir no heat runs normal and
then overheats runs normal overheat Add Water no heater work

3,775

Randy answered 4 years ago

why do you need your heater to work in the middle of summer. it makes little sense to me why that is an issue when the reservoir is bubbling hot. First, are you using straight tap water? bad move. Use coolant that is designed to withstand heat. Secondly, you might have an issue with coolant temperature sensor. Research it's location.

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Guru9DBS3N answered 4 years ago

Check your oil and coolant. I bet you have coolant/water in your motor oil and motor oil in your coolant/water. I discovered this after experiencing the same issue. Since I replaced my head gaskets, all is well.

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