Over heating

Asked by Jeffmcgraw Jun 30, 2017 at 11:10 PM about the 2003 Chevrolet Venture Base

Question type: Maintenance & Repair

Replaced water pump and thermostat
still over heating and now no heat

5 Answers
144,755

T_S_T answered 7 years ago

Could be a clogged heater core being you have no heat,or if you are loseing coolant you may have a blowed head gasket or head issue.

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14,395

dariusk8 answered 7 years ago

Yes....what color is your exhaust? If it is whitish....then you have a blown head gasket. When mine blew....having no heat in the wintertime was the first sign

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14,395

dariusk8 answered 7 years ago

Even a simple radiator cap......per chance.......by being unable to keep it within the specified pressure may cause a car to overheat

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4,205

Capn_Steve answered 7 years ago

There are two cooling system bleeder screws on the Venture vans. IF you do not loosen the screws when refilling the cooling system you will trap air in it, causing the vehicle to overheat. One is on the thermostat housing and the other is near the water pump. they are both brass. Loosen the screws when the vehicle is cold fill the cooling system until a steady stream of coolant comes out of the bleeder. No air bubbles. Run the vehicle and periodically open the screws a bit to make sure all the air is out.

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