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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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#16 of 37 Air conditioning by zigback Jun 23, 2007 (10:36 am)
I smell gasoline when running the ac. Has anyone else had this problem and what can be done?
#17 of 37 Re: 2003 Mercury Grand Marquis LSE Heater & A/C motor NOT Blowing [ascorbate] by jsylvester Jun 24, 2007 (10:56 am)
Replying to: ascorbate (May 26, 2007 11:56 am) My 2002 LSE did the exact same thing - there is a blower resistor module that goes out - it is located in the climate control plenum on the firewall. It is cooled by any air that moves through there, and apparently it is a result of the "lowest bidder" supplier agreement method.   I paid $150 to get mine fixed by my local Mom and Pop garage. One advantage of the Grand Marquis is everyone knows how to work on it, so don't overpay for a dealer to fix it.   One suggestion is to find the garage your local police uses for repairs - they will know the car inside and out.
#18 of 37 Re: Cheap & Easy Fix for EATC Blower Operation Problem [mr5x5] by boscoal Jun 24, 2007 (5:46 pm)
Replying to: mr5x5 (Mar 21, 2007 12:14 pm) I found the same thing on my controller . I also found a bad diode. Have not repaired it yet just found it due to your comments Thanks Al Malone Replies to this message: fred90 (Mar 20, 2009 1:46 pm)
#19 of 37 Automatic Climate Controle by bigmerc Jul 05, 2007 (5:49 pm)
My EATC(automatic Climate Control) is loosing vacuum. I checked the system, all doors function and do not loose vacuum, supply holds vacuum even post car being off, so storage canister is fine, no leaks in connection. What is left? EATC Symptoms are that air is coming from vent but changes to def/floor or will just come from def/floor. The only reason I can see after checking everything is that the solenoids in the EATC that regulate the vacuum to the different doors are not getting enough current. This in turn allows the opening to the outside air to open when the solenoid is activated and therefore loosing vacuum in that part of the system. Does anybody know how to fix this, short of replacing the EATC and does anybody have an electric schematic of the EATC? Replies to this message: twocassels (Aug 05, 2007 11:17 am) bigmerc (Aug 07, 2007 11:56 am) lilborther (Jul 04, 2009 3:08 pm)
#21 of 37 98 CROWN VIC A/C DRIP LINE by jiggyfli Jul 10, 2007 (12:17 pm)
OKAY I AM NOT THE SMARTEST PERSON IN THE WORLD, BUT EVEN I SHOULD BE ABLE TO FIND THE A/C DRIP LINE. BUT FOR WHATEVER REASON I CAN NOT FIND IT. MY A/C IS NOT DRIPPING AND I CAN HEAR WATER ROLLING AROUND IN MY DASH. I HAVE MY CAR UP ON JACKSTANDS RIGHT NOW BUT I STILL CAN NOT FIND IT. PLEASE HELP...............
#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)

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