ease of water pump replacement on 2005 Buick LaCrosse

back in nov, had no heat, i took it to the dealer and was told that the heater core was plugged. they flushed the system and it worked great for a couple months, then same problem, now it apears that the water pump is leaking, and no heat

Asked by for the 2005 Buick LaCrosse
no heat because coolant level is low because of leak......replace the water pump....problem solved