Question about 2002 Chevrolet Malibu
Coolant leaking on passenger side. Car will not go 2 miles without overheating. The heat will not work, it only blows cold. There is NO smell of antifreeze in the car and there are no visible leaks along the firewall. Seems to be dripping down a little behind the water pump. I replaced the water pump in May of 2013 when it seized up. Could it be the water pump or possibly the thermostat (has been suggested because we are getting no hot air!!) Thank you!!
All GM cars from 1994 to on up the 3100/3400 engine is famous for bad intake gaskets. When the gasket goes you loose coolant by either externally outside the engine or internally inside the engine. Check the oil for overfull condition and it will look like bright orange or milkshake color. Also if you drove on it overheating or if its full and overheats right away you also blew a head gasket. A compression test will confirm this. If you replace with good gaskets with the metal and rubber type do not use the plastic cheaper version. Then the intake gasket leak will never happen again.
Posted on Feb 09, 2015
No, not the thermostat. The reason you have no heater is because of the leak. The heater core will be the first indication of low coolant, as it is the highest part of the coolant system.
Stop the leak before damaging the engine. The new pump should be good, but maybe it is the pump gasket? If not sure, have a shop do the job where they put dye in the coolant to look for the leak.
Posted on Nov 26, 2013
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Posted on Jan 02, 2017
That sounds like the coolant level is low. If it is not the use of "stop leak" has probably caused a partial clog which restricts the flow of water unless the vehicle is turning higher RPMS. While sitting still raise the RPMS to about 2000 and see if the heater blows hot air to see if the above mentioned problems are fact.
Posted on Nov 22, 2010
check your hoses and make sure its not getting low because when it gets low the hoses can get hot enough to expand and spit out antifreeze without overheating
Posted on May 18, 2013
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