how do I replace the BlendAire actuator on my 2004 Grand Marquis... It only blows hot air. Is it possible to move door to cold side only and block it to have cooling & no heating???

nopal8
30

Asked by nopal8 Feb 09, 2013 at 09:45 AM about the 2004 Mercury Grand Marquis LS Ultimate

Question type: Maintenance & Repair

Unit stays on hot side only and checks out to be actuator problem... Appears to be very labor intensive to replace... Would like to block it to always be on cool side as we live where heater is not needed...

5 Answers

judge_roy
Not Active

The blend door is a function of the engine. It opens up when operating temperature is reached. It's only purpose in life is to let preheated air be used, from the stove kit on your exhaust manifold. Why this should be of concern to you, not certian. if your vehicle is taking to long to come up to operating temerature, the blend door need to be looked at. I'd concern myself with the stove kit and connecting pipe, more so than the blend door. if you've got bad heat, would look to the thermostat being stuck open first.

4 out of 4 people think this is helpful.
nopal8
30

We are talking about Automatic Temp. Control inside vehicle. 2004 Marquis doe's not have heat stove on X manifold...

3 out of 3 people think this is helpful.
judge_roy
Not Active

Okay then, we must ask why aren't the signals to open getting through. If you put a new one in, the same result~ if it's tubing that fell off or is cracked, inspect. If you've got a suction instrument, a turkey baster might work, to actuate manually, then inspect, you can see if this unit is bad, rather than the thing what gives it instruction.

3 out of 3 people think this is helpful.
Larry Falkenberg
30

http://diy-auto-repair.wonderhowto.com/how-to/fix-blend-door-actuator-motor-99-mercury-grand-marquis-396512/

3 out of 3 people think this is helpful.
Helotescowboy
20

I had the same problem years ago on my 1996 Marquis...couldn't afford the dealership price so I just turned off the A/C....until...I had to change out the battery. Changing the battery made the blend door actuator cancel a code and it began to pop once in a while and so I turned on the a/c...it worked! Now, if I hit a bump or (it has worked for a few years in a/c only) jolt the door in some way it will turn to heat only....I just get out and take the neg off the battery for a few moments and then attach it back...the a/c will then work again!

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Mercury Grand Marquis 2008 no heat in cabin 1 answer

    Checked all the basics. Hose from engine to radiator gets hot. Two smaller diameter hoses at the passenger side that are at the fire wall are hot. Switch for ac or heat ok, vaccuum door moves. Ok air ...

    2008 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • Why does my heater fan only blow cold air? 8 answers

    When I turn the heat on in my car it only blows cold air. The AC works just fine and the fan does blow at full power but no matter how long the car has been running for the air still remains extremely...

    2001 Mercury Grand Marquis

    -

    Maintenance & Repair

  • Whyt would hot air blowi from a/c, heater and defrost setting 3 answers

    When turn on a/c or heat or defrost from Control Assembly nothing but hot air blows out of vents. Bland door motor and actuator have been checked and Okay. What else could be the problem.

    2009 Mercury Grand Marquis

    -

    Maintenance & Repair

  • Why does my 2005 Marquis blow high heat no matter what setting I have it on? 2 answers

    My 2005 Mercury Grand Marquis had a clicking sound with the heater blowing and then it quit but now I only get really hot air blowing out. Even when I put it on A/C, Max A/C, Vent, etc. Also, changi...

    2005 Mercury Grand Marquis

    -

    Maintenance & Repair

  • hot air on one side only when heat is on 1 answer

    hot air blows only on passanger side. Driver's side blows cold air only, while both heaters are on.

    2004 Chevrolet Impala LS

    -

    Maintenance & Repair

Grand Marquis
Looking for a Used Grand Marquis in your area?
CarGurus has 2,516 nationwide Grand Marquis listings starting at $995.
ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 2,760
#2 kbro
kbro
Reputation 1,290
#3 Ratpuppy
Ratpuppy
Reputation 680
View All

Related Models For Sale

Used Ford Crown Victoria"
18 Great Deals out of 1,100 listings starting at $2,500
Used Lincoln Town Car"
56 Great Deals out of 2,249 listings starting at $1,495
Used Chevrolet Impala"
1,285 Great Deals out of 57,920 listings starting at $1,150
Used Ford F-150"
2,378 Great Deals out of 104,384 listings starting at $1,300
Used Mercury Marauder"
22 listings starting at $5,600
Used Chevrolet Tahoe"
760 Great Deals out of 24,826 listings starting at $1,955
Used Cadillac DeVille"
37 Great Deals out of 2,156 listings starting at $1,888
Used Ford Mustang"
714 Great Deals out of 35,456 listings starting at $1,950
Used Ford Taurus"
387 Great Deals out of 16,705 listings starting at $1,400
Used Toyota Avalon"
254 Great Deals out of 17,351 listings starting at $1,200
Used Buick LeSabre"
102 Great Deals out of 2,523 listings starting at $990
Used GMC Yukon"
280 Great Deals out of 8,326 listings starting at $1,995

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
46 listings starting at $11,977
2010 Mercury Grand Marquis For Sale
3 Great Deals out of 96 listings starting at $9,991
2009 Mercury Grand Marquis For Sale
10 Great Deals out of 181 listings starting at $6,991
2008 Mercury Grand Marquis For Sale
16 Great Deals out of 230 listings starting at $3,495
2007 Mercury Grand Marquis For Sale
10 Great Deals out of 167 listings starting at $3,990