Over the past few weeks, I've been trying to get my failing vacuum actuators to do their job. Well, they wont; one reason or another, they just wont. I didnt really want to buy some more 30something year old rubber parts, including NOS units because I worried about their ability to do the job properly.

At any rate, I was sure that something else would cross reference; officially, as far as I can tell, nothing did.

BUT...in the real world, if you need to replace these things (not counting the one for the recirculation door...I never needed to replace this one...), part number YH1666 for a Mercury Grand Marquis, fits great. There are some very minor physical differences but they mount the same and, so far, operate the selector doors properly.

Here are some pictures of my "Dry run,":

 

Thanks for posting your find. It will come in handy for people,
Reps sent.

 

x2

Thanks for that. I scrounged a couple extra just because I didn't think you could get them.

 

I've got a couple of extras laying around too, the problem is they are just as old as the ones I'm using.
This gives us some options.

 

6W7Z-18A318-BA (replaced F1VY-18A318-A & F5VY-18A318-B) .. A/C Blend Door Vacuum Motor (Motorcraft YH-1666) / Available from Ford.

MSRP: $56.82 / Applications: 1991/2011 Ford Crown Victoria/Mercury Grand Marquis/Lincoln Town Car.

 

Looks good, thanks for the info


By the way, can I see your 8900.1 for your STC

 

 

Now THAT is FUNNY!!!

WINNER WINNER CHICKEN DINNER

What is that, cant tell if those are struts outside or not

 

No clue what it is, I looked long enough to find the word on something and posted it.

 

Ah, thought it might be something you built or worked on