Question about 2006 Buick LaCrosse
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Posted on Jan 02, 2017
the problem is a part called the air temperature control blend door acuator motor, it is deep inside the dash and the dash must be removed to replace it.
Posted on Jul 09, 2009
Its more then likely the temp door broken or temp door motor broken/stuck. There is 2-3 of these motors under the dash on the side of the evap/heater core box. Some require extensive labor to replace, good luck
Posted on Jul 29, 2009
SOURCE: 2001 Lincoln LS heater blows
When the engine is cold,check the coolant level.
Make sure it's on max.
A coolant system should be flush every two years.
If you did a coolant flush recently then air pocket can be the cause of the un-even heating problem.
The DIY method is to drive you car onto a ramp or a steep hill.
Iet the engine cool off and top off the coolant tank.
Set MAX heat + MAX fan
Let the engine ran for 20 minutes wih the cap off and the trap air will escape from the coolant reserve tank,
Check coolant level and top off coolant when the engine cools down.
A shop will charge $75+ for this but using an air operated excavate tool!
A car with over 90K miles may experience linkage problem to the heater control valve.
The heater control valve (near the firewall) may be stick over time.
Open the hood and move the heater to max and min. Back and forth.
Clean and lube the linkage with WD-40 to free the heater control valve.
If it's a vacuum type heater control valve then cash for leaky vac. hoses.
Move the fan switch back and forth to re-new the electrical conductors.
Pass a vacuum over the control panel to prevent dust build up behind the console.
Posted on Dec 03, 2009
Same thing happened with my 95 park avenue a few weeks ago. I talked to a guy I know who is a GM mechanic and he says that the module (the thing on the dash with all the buttons and the temperature display) is broken and needed to be replaced. These computer modules just get funny with age and eventually have to be replaced. You can find one pretty easy on ebay motors. It's not hard to replace, you just have to take apart the dash and take out the old module and put the new one in. Hope this helps!
Posted on Apr 14, 2010
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