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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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#22 of 37 Re: Cheap & Easy Fix for EATC Blower Operation Problem [mr5x5] by keatsarizona Jul 13, 2007 (1:39 pm)
Replying to: mr5x5 (Mar 21, 2007 12:14 pm) 13 July 07 Mr5x5, I've had the exact same problem in my 2001 GM LSE. Last year Feb. I had the blend door actuator replaced. I'm thinking that perhaps the mechanic bumped or somehow caused the Controller Board to have a solder crack. Until then, the blower worked fine. A short time after the repair I noticed that the blower was intermittent. My blower stopped completely last week. I could not find anything on line to explain this until I read your post. Can you explain where I find the "Controller Board" to check it out. Naturally with the LSE it has the center consul making everything a bit harder to access under the dash. It sounds like it needs to be inside the heater/AC box to maintain the right temperature so it doesn't burn out. I'd sure appreciate any advise you can give me. Thanks, Sweating it out in Phoenix Az. Whew!!! KeatsArizona
#23 of 37 Re: Cheap & Easy Fix for EATC Blower Operation Problem [mr5x5] by bryanm747 Jul 15, 2007 (7:32 pm)
Replying to: mr5x5 (Mar 21, 2007 12:14 pm) My 2003 Crown Vic blower just stopped working.I took out the blower controller and inspected the solder connections. They looked fine, but when I used my ohmmeter to measure the continuity of the pins to the board, sure enough there was an open on one of the big lugs where it connects to the board. Even under a magnifying glass it looked ok. I scraped the board around where the pins connect and soldered them. Now it works great. I found that removing the stud where the ground wire and the heater hose connect to the block near the module, then using some bungee cords to pull on the heater hoses, it was a lot easier to get the module out of the AC duct. What a tight squeeze though!
#24 of 37 Re: Automatic Climate Controle [bigmerc] by twocassels Aug 05, 2007 (11:17 am)
Replying to: bigmerc (Jul 05, 2007 5:49 pm) My problem is exactly the same as that posted by bigmerc on July 5, 2007. I have a 2002 Grand Marquis LSE. Has anyone figured it out yet? Replies to this message: bigmerc (Aug 07, 2007 11:56 am) lilborther (Jul 04, 2009 3:08 pm)
#25 of 37 Re: Automatic Climate Controle [twocassels] by bigmerc Aug 07, 2007 (11:56 am)
Replying to: twocassels (Aug 05, 2007 11:17 am) Twocassels, Is it Hot! Not in my Merc, I made it a 'manual' automatic climate control. Since you have the same problem as I have I thought to fill you in on my fix. I use the vacuum supply line to directly connect to the actuators of the doors. Since it is about 95 degrees I choose to have it all come out of the vents as the car would normally do. Initially not as good as 'factory' until I added vacuum to the Air inlet door as well. This gives you the well known blast of cold air from the vents. The fix: Hope yours is like mine: Underneath the dash in the foot well there is a vacuum connector plug with multiple vacuum lines that goes to the Climate control unit. Disconnect this and use the male end to make the connections. Here is what is what on my 03: Black: Supply Blue: Panel door White: Air inlet door Yellow: Floor/defrost door Red: Floor door As I said, I used a vacuum hose directly from Black to Blue and White, needed for this is a short piece of vacuum hose with one T connection since you will use three connections. It works like a dream and the temperature control still works as before including fan speed control. Enjoy. Till I find a fix or a reasonable priced replacement unit I will live with this fix. For winter driving you probably will have to connect black to yellow directly. Happy cruising and playing with this manual fix. Replies to this message: lilborther (Jul 04, 2009 3:08 pm)
#26 of 37 Air blows hot by jspikes Jul 02, 2008 (7:53 am)
I've got a '98 GM LS and the a/c only blows hot. I've checked around, and found out that the possible culprit is the blend door actuator. I don't think that the electronic climate control is the problem, but if you have any other ideas, please let me know. My question is this; Do you really have to pull out the dashboard to replace the actuator? Is it possible to go in through the glovebox opening?
#27 of 37 Re: Bubble, bubble [martens] by cobrass Oct 22, 2008 (6:15 pm)
Replying to: martens (Jan 15, 2006 1:46 pm) I have the same freakin problem on my new ride 96 grand marquis Ls. I thought it was low on coolat which it was, it took like a gallon of coolant ... each time I fill it it goes down to nothing as i drive for a day until I finished a gallon and now It's stable (Level) but that noise is bothering me, you can hear the flow of the coolant with turbulence in it close to the firewall in the interior side of it.   Thanks sam,
#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)

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