Question about 2006 Buick LaCrosse

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Ehatis wrong 2006 buick lacrosse 3.8 dual climate control dosnt switch to heat when raise tempeture hoses going to heater cool???

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  • Buick Master
  • 2,474 Answers

Check heater control accuator

Posted on Nov 08, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

emissionwiz
  • 75822 Answers

SOURCE: 03 Buick Century DUal Climate problem

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

  • 54 Answers

SOURCE: 2004 chevy tahoe, dual climate control, blowing different temps

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

Mustgo
  • 2359 Answers

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

  • 1 Answer

SOURCE: 99 Buick Regal LS dual climate control. No heat passenger side.

the motor for the passenger side
blend door is shot

Posted on Jan 12, 2010

  • 1 Answer

SOURCE: 1995 Buick Climate Controls Going Crazy

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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2 Answers

The heater is only warm until the fan is turn on then it blows cool air


Does the engine reach normal operating temp? Are the heater hoses hot? You may need to check temp door under the dash and hvac controls. Are there any hvac trouble codes?

Dec 22, 2015 | 2006 Buick LaCrosse

1 Answer

I replaced the heat blend actuator because I was not getting any heat. Now, after replacing, all I get is hot air and no cold. The A/C was working fine just before replacing.


Do you have Manual Climate Control System or Dual Automatic Temperature Control System ?
The temperature control switch:
  • is a potentiometer that outputs a variable voltage to the temperature blend door actuator to set the position of the temperature blend door.
  • initiates closing of the heater control valve. When set to full COOL, a lever on the temperature blend door pivot shaft depresses the pintle of the heater control valve vacuum switch. The heater control valve vacuum switch then applies vacuum to the heater control valve, closing off engine coolant flow to the heater core.
  • is serviced only with the climate control assembly.
You may have disturbed something when changing the actuator , the vacuum switch o vacuum hose .

Oct 21, 2015 | 2005 Ford Explorer XLT

1 Answer

Heater core flush 2006 buick


Remove both hoses and flush from bottom (warm) connection using medium hose pressure. Flush until clean water runs easily through. If this doesn't do it, time to replace heater core.

Feb 13, 2015 | 2006 Buick LaCrosse

1 Answer

2006 buick lacrosse heater core change


THIS IS A JOB FOR AN EXPERIENCED MECH. TAKE IT TO A MECHANIC WHO DOES SIDE WORK.

Oct 24, 2014 | 2006 Buick LaCrosse

1 Answer

2007 BUICK LACROSSE NO HEAT


How difficult is it to access the control valve? I didn't find it under the hood so I am assuming it will be under the dash. The fan is working good, and the car is coming up to temperature beautiful.

Nov 28, 2013 | 2006 Buick LaCrosse

1 Answer

No Heat


It Sounds Like You Have Either A Faulty Heater control Valve Or On The High Side A Bad ATC (Automatic Temperature Control). Check The Hoses That Go Into The Heater Core Both Should Be Hot At Normal Operating Temp. If The Outlet side Is cold Or Luke Warm You Have A Bad HCV.

Apr 23, 2013 | 2006 Buick LaCrosse

1 Answer

My dual automatic climate control doesn't switch to heat. Is it vacumn controlled?


i would like to ask you that , Did the problem come on suddenly or was some previous action or work done......

Nov 10, 2011 | 2006 Buick LaCrosse

1 Answer

Where is the heater control valve on a 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

Dec 29, 2010 | 2005 Buick LaCrosse

1 Answer

A/C Heater problems


the main issue with this is either the thermostat or the climate control switch I do not know if your climate control switch is electronic or manual either way I would start out with the cheapest and go with the thermostat first good luck!

Nov 22, 2008 | 2004 Chevrolet Impala

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