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Ford Crown Victoria/Mercury Grand Marquis Climate Control

37 messages,  Last post on Nov 07, 2009 at 10:20 PM

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What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Heating / Cooling, Sedan

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#28 of 37 1985 Ford Crown Victoria Really Fogs Up the Windows by mike280zx Dec 15, 2008 (1:11 pm)
While visiting my mother yesterday, I was driving her car and I tried to defog a slightly fogged windshield. Much to my surprise, the defroster started spewing its own fog onto the windshield to the point that I couldn't see out. The fog was so intense that the fog permeated the interior. Any ideas? Replies to this message: Mr_Shiftright (Dec 15, 2008 2:14 pm) euphonium (Dec 15, 2008 9:06 pm)
#29 of 37 Re: 1985 Ford Crown Victoria Really Fogs Up the Windows [mike280zx] by Mr_Shiftright HOST Dec 15, 2008 (2:14 pm)
Replying to: mike280zx (Dec 15, 2008 1:11 pm) leaking heater core.
#30 of 37 Re: 1985 Ford Crown Victoria Really Fogs Up the Windows [mike280zx] by euphonium Dec 15, 2008 (9:06 pm)
Replying to: mike280zx (Dec 15, 2008 1:11 pm) I agree. New heater core. Requires removing the front seat, dash, console if any and at least eight hours of labor just to replace a $99 part.
#31 of 37 1990 Grand Marquis Temperature control by tomanycarz Jan 20, 2009 (5:57 pm)
I had great AC in the summer nice and cool. In the winter I still only get cold air!! and the AC compressor kicks in with the switch to full heat. The vacum system seems to work switching between defrost, vent etc. The temp contol in the dash has circuit board type sliding switch. Anybody have any experience with this problem. It was 10 degrees up North. I need heat! any ideas. Thanks. Replies to this message: bigmerc (Jan 21, 2009 9:51 am)
#32 of 37 Re: 1990 Grand Marquis Temperature control [tomanycarz] by bigmerc Jan 21, 2009 (9:51 am)
Replying to: tomanycarz (Jan 20, 2009 5:57 pm) If I am not mistaken on my 85 there was a valve (solenoid?) in the hose to the heater core. Again, this is from memory a long time ago, but I think this went belly up and all there is to do then is to replace it and you will be nice and toasty again. Your airconditioning should not be comming on when it gets close to freezing though! Hope it is of any help, nothing lost if not right? Good luck.
#33 of 37 Re: Cheap & Easy Fix for EATC Blower Operation Problem [boscoal] by fred90 Mar 20, 2009 (1:46 pm)
Replying to: boscoal (Jun 24, 2007 5:46 pm) Can any one tell me or post a picture of where the module is. My blower or fan motor checks out ok but my fan control only had high speed and now it does not work at all. I have also does the easy part - check all the fuses and relays but to no avail.   Help it get hot here in Houston
#34 of 37 EATC Blows only through defroster, just fixed...:( by joeveto Jun 24, 2009 (5:57 pm)
My Grand Marquis with the EATC had been blowing through the defroster mostly, and occasionally the floor. With 90 plus degree days, this wasn't going to cut it. So I took it into the dealer...   The problem was the EATC head unit. Apparently, as noted elsewhere here, the solenoids can go bad. The total cost was over $900 to fix. Roughly $650 of that was for the part, a little over $200 for labor. Then tax.   Not fun.   So be warned. It's a great car. I truly love it. But this hurt. The first unit lasted 87000 miles. I'm hoping this one lasts longer!!
#35 of 37 Re: Automatic Climate Controle [bigmerc] by lilborther Jul 04, 2009 (3:08 pm)
Replying to: bigmerc (Aug 07, 2007 11:56 am) Many thanks to BIGMERC!!! I had this same problem with my 2006 Grand Merc, I took it to my local mechanic and he was going to charge me around $300 to replace my air door actuator. I followed directions from BIGMERC and his suggestion fixed my problem. Great Job! I had a T in the shop so it costs me nothing! I'm cool and BIGMERC is SUPER COOL. Thanks.
#36 of 37 Re: Fan has mind of its own [cabinetpro] by hag100 Jul 12, 2009 (11:31 am)
Replying to: cabinetpro (Apr 14, 2007 10:44 am) Brian,   Hate to sound stupid here, but when you say climate controller, are you talking about the in dash unit with the push-buttons on it?   Do you remember where on EBAY you find the unit?
#37 of 37 Air blows hot by charlie1953 Nov 07, 2009 (10:20 pm)
This is about a 1998 Merc. Marquis. Air blows hot during vent and ac. Just like the problem jspikes wrote about on 7-2-08. Was there an answer to that problem? Does anyone have any ideas?   Thanks, Charlie

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