How to Replace Heater Blower Motor with Fan Cage 79-11 Mercury Grand Marquis

How to Replace Heater Blower Motor with Fan Cage 79-11 Mercury Grand Marquis

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In this video, 1A Auto shows you how to repair, install, fix, change or replace a broken, weak, noisy or screeching heater and air conditioning fan blower motor. This video is applicable to the 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, or 11 Ford Crown Victoria and Mercury Grand Marquis models.

🔧 List of tools used:
• 8mm Socket
• Ratchet
• Socket Extensions

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While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.



1A Auto: Repair Tips & Secrets Only Mechanics Know says:

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Coca Cola says:

What is the tube called? Need to replace mine

gio s says:

My ac works on my 04 crown vic the the heat dont could it be the motor?
I already replaced the resistor and flushed out the core it was clean by the way. Back to the question AC works but not the heat could it be the blower motor?

Smokey Magpot says:

got a stumper been stumping me on my 01 marquis gs heater/ac issues. its manual control not digital. heres probs.
AC issue-1. ac works amazing wen i use the ac on norm-ac and max-ac. wen i use vent and the others with temp switch on full blue, it only blows warm and not cool like it should w/o ac on.
Heater issue- 2. its idling in park and im running heater, it works fine but wen i drive with heater on, it blows cold instead.
i replaced thermostat with failsafe, new heater core, flushed system 3 times to fully clean, new heater actuator/resistor and im sure theres others i forgot. if yall could help me figure this out id greatly appreciate it. thanks fellow car peeps!!

Donny Gamble says:

Thank you thank you thank you I was able to replace it. It is too hot here in Florida without AC!

Bradley Baggett says:

Yeah this is definitely not for a 97 completely way harder got it off and then realized in his video with the coolant reservoir is not right in front of it so thanks a lot guys

Robert Rickner says:

Would a failing blower motor cause a scent of burning rubber/grease and have a slight squeal on hi and the dot before hi?

Mr.Solis says:

Can anyone help me with my fuse getting blown everytime I turn my heater on my 2000 Grand marquis

Suspended DusK says:

I have a 1998 GM. I would have appreciated it if you showed the tube he's talking about that attaches to the firewall. I have no idea what he's talking about.

John Colon says:

I got a 2008 grand marquiz ls.I got issues with my a/c I replaced the door blend actuator with my son -in-law and still don't get a air inside the actuator
Is fine , but went I turn the engine and turn on the E.A.T.C. UNIT and puch the
Vent bottom the needle turn to the heat position"left". Bye the way the outside
Line they get real cold it seen the problem is inside but I can figure it out what
Is the problem.

John Colon says:

Thank for you reply.

John Colon says:

Can you do a video on how to replace a heat control valve I a 2008 grand marquiz?

Tommy Chris says:

man why you didn't give it a try?

Marshall Currie says:

I asked the wrong question I guess . How do I service the AC compressor or service or change the pulley ? DEADEYE

Ivan Orange Co. South California says:

I replaced my blower motor today, and before I tightened two lower screws, I plug into to upper holes two pins to keep everything in position, I was done in 5 minutes

Aaron Thomas says:

I changed my blower motor in my 1999 crown Vic thinking it would solve my issue with my air and heat not blowing strong but it's not the case. I still have the same problem after new blower motor. What else could it be

BishopDaGreat says:

So i bought 2009 crown vic interceptor last month 93k miles 2 weeks later after running ac on high i smelled what seemed to be electrical fire or burning plastic. now it wont blow hot or cold but i can hear it trying to cut on just never blows. Any suggestions?

nduboiscloutier says:


the fans turns in my 2008 CV, but barely any air is comming trough the vents. the fans doesn't sound loud. coulb my issu be the resistances in the button?

Sarah Price says:

my a.c. in my 2000 grand marquis will blow sometimes and not at all. i can get a tiny bit of cold air if my ac is on down at my feet. would that be the blower motor or something else? I live in Az where 120 degrees is a normal thing and i have 4 kids so i need AC bad. please help thank you. 🙂

Dee Biggs says:

I have a 2003 Crown Vic. The heat/ac works but does not blow out of front face vents, only floor and defrost vents. Any suggestions??

Yg Bodybuilder says:

question i have a 2003 crown vic, and the heat /air is not blowing, but when i start driving mainly at a constant speed, i feel the heat coming thru the vent, its not blowing but its damm sure coming thru, what could be the problem

Yg Bodybuilder says:

mine came with 2 different harness is it a must you use them?

EzE V says:

where can i find the blower motor housing?the one on my vihecle cracked .

Sara Ginger says:

My heater blows cold in my 1997 grand marquis. What do you think the problem is? Everything is automatic

James Fuller says:

I've replaced my blower motor and resistor, my fuse keep blowing out when i try to turn on my heater. I drive a grand marquis 93 model. Help me

1A Auto: Repair Tips & Secrets Only Mechanics Know says:

@Paul T It may be the same or a similar process. 

Kelso53 .Kelso53 says:

excellent""   thank you!

1A Auto: Repair Tips & Secrets Only Mechanics Know says:

If there's power going to the blower motor, than the motor may have gone bad. We carry new ones on our website with FREE SHIPPING in the lower 48 states. 888-844-3393

Kimball Roberrts says:

I have a 2000 Crown Vic and my AC just went out. The system is fully charged and the compressor works fine and the lines get cold. However the blower just does not work. All the fuses and relays seem to be ok. Does this sound like a a bad blower motor too?

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