Question about 2002 Chevrolet Chevrolet TrailBlazer EXT LT
Changed radiator water pump and thermstat
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Posted on Jan 02, 2017
At normal operating temp when the coolant system is pressurized, the top hose should be hard.
Posted on Apr 02, 2010
Testimonial: "Very helpful resopnce"
IF the heater core was leaking you would notice it inside the car. You would notice the smell of coolant inside. Also your windshield would probably instantly fog up when you turn the heat on. Do you notice puddles of coolant under the car? You can buy or possibly rent a cooling system pressure tester which is simple to use. You remove your radiator cap and itstall the tester and pump up the cooling sytem to what ever PSI your cap is rated for and let it sit for a few minutes. IF the PSI drops that means there is a leak somewhere and you should be able to find it if you see any puddles under the car. If not you may have an internal leak such as a bad head gasket or cracked head. Or possibly a bad intake manifold gasket. Does your oil look milky. If so that means there is coolant in it? Do you notice excessive steam or white smoke from your exhaust? If so I would suspect a head issue.
Posted on Apr 22, 2011
water pump bearing not turning stop now or get reday for mojor engin repear , the head is going to blow.
Posted on Mar 14, 2012
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