Question about 2005 Buick LaCrosse
It sounds like the heater control valve may be stuck. This valve
allows heated water from the engine to pass through the heater core
which in turn heats the inside of your car. If this valve is stuck,
only a small portion of heated water will pass through. If this is the
case, you should have the control valve replace.
You should be able to find it by following the heater hoses coming from the radiator leading back to the firewall. These hoses will about 1/2 - 3/4 of an inch in diameter so you shouldn't get them confused with the normal radiator hoses.
You can probably purchase a new valve at an auto parts store but I'm sure the dealer will have one.
If that's not the problem, it could be that the core itself is clogged up. That's a little more expensive and more of a pain to replace. if this is helpful please dont forget to give rateing thank you
Posted on Dec 29, 2010
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Posted on Jan 02, 2017
cool car down and drain the radiator, usually a spigot or valve at the bottom. remove the clips or clamps holding the hose on, pull hose off. get a new hose from any parts store, sometime helps to have the old one with you. install new one, put on new clamps and tighten firmly, pour in new coolant. check your owners manual to see what kind of coolant Buick recommends.
Posted on Oct 04, 2010
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