Question about 2003 Mercury Grand Marquis
Buy a repair manual and check the procedure to see if you want to attempt it yourself. If you've never pulled a dash apart, be prepared for some cursing and steaming- it aint fun! If you do it, make notes as you go along, and keep screws and everything taken off or out in an orderly way. Note where every electrical connection came apart. It CAN be done, just depending on how much you want to save 600 dollars. No special tools are required, just an ordinary set of hand tools and sockets, maybe a steering wheel puller. I've done it a few times-and found I never made enough notes to self.
Posted on Nov 06, 2012
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Posted on Jan 02, 2017
SOURCE: 2003 Mercury Sable sedan
No, not really. Even if you could hack your way to it's approximate location, there's way too much involved with no room to do anything for you to have any success. You can't just say "okay, there it is" because you can see it, and fix it
Posted on Nov 16, 2008
I'm not sure if yours is identical to mine since yours is second gen and mine is third gen, but with mine (1998 MGM), the heat was stuck on all the time. Full heat would practically cook your feet and you couldn't shut it off.
It was a servo/servo arm that controls the hot/cold mix door. The part was $15. The labor was $700. They had to take the entire dash out of the car to get at the part. Required two more visits due to a missed electrical connection to a daylight sensor and a vacuum issue that made the car stall when put into reverse.
My car had 150K on it at the time. Has 165K on it now. Still runs great and looks great. It's now my wife's auto and I drive a 2006 MGM.
Posted on May 13, 2009
probably has a bad belend air door motor, to run the systen completely through its self diagnosis process" if has electronic auto temp control"
press."off "and "floor" at the same time release... then hit the "auto" button
wait til gives you code...... it will then "SOMETIMES start WORK normal til moved again by you.....
if manual, change hot to cold, listen carefully for clicking ...if clicking rplave blend door motor and inspect the plenums door while motor out
Posted on Jan 20, 2010
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