90 Chev Cavalier


Old 08-10-03, 07:03 PM
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90 Chev Cavalier

Hi there, i have a 1990 chev cavalier, 3.1 5 speed.I seem to be plauged with coolant problems.My car has apx 250 000 and recently started overheating on me.the low coolant light isnt comming on but the temp light is.I changed the thermostat because there was no heat at all.But it didnt help the problem.Still no heat.Its also a new heater core as well within 2 mos.Any suggestions would be appriciated.
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Old 08-10-03, 07:12 PM
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You could have a number of problems here. Is the original water pump there? If not when was it last changed? Check for endplay in the pump. The fins could be bad or the bearings worn, This will cause low flow. Does your fan operate? There may even be a heater control valve that is defective. Just somethings to think about and take a look at.
Hope this helps,
Old 08-10-03, 08:24 PM
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Agree. Have the cooling system checked by a shop with a coolant tester or gas analyzer if the water pump and fan check out. That would confirm a bad head gasket.

Change your radiator cap---cheap insurance.

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