Question about 1994 Ford Crown Victoria

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Air intake makes noise 1994 crown vic

When I start the car the air intake sounds like a fog horn. If I touch the throttle the pitch changes and returns. Sometimes it quits when it warms up.

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  • oneandonlyri Nov 20, 2008

    i have the same problem and the noise comes from the air intake. dont know wat it can be.



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  • 235 Answers

Change the idle air control valve and this will stop.

Posted on Jan 15, 2009


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I changed the mass air intake valve TWICE on my 1994 Crown Vic. Whenever I plug it in, the car stalls. When I unplug it, the car hesitates. What is the problem?

1. download torque pro (free app) & purchase the iSaddle Super Mini ELM327 V1.5 OBD2 OBD-II Bluetooth CAN-BUS Auto Diagnostic Tool on amazon for $15 delivered. You will need it to get diagnostic info and codes. Cheaper and better than any OBD you can buy in the store and works from the app on you phone and communicates by bluetooth. You can pull and record real time info while driving.
2. join a crown vic owner forum for more specific info.

Feb 10, 2015 | 1994 Ford Crown Victoria

1 Answer

Hello? Emission problem 1994 crown vic here...

I owned one of these. There is a groove under the butterfly horn of the throttle. There are 8 bolts and a $10 gasket. Often the EGR passage is clogged and it throws off the calibrations and when you clean this groove the engine will run much better.

Jul 21, 2014 | 1994 Ford Crown Victoria

1 Answer

On my 1995 crown vic. one day horn blew on its own for about an hour. i looked and fuse was blown now when i put new fuse in and hit horn, horn sounds for second and fuse blows. everytime i put fuse i

Sounds l;ike the horn itself has a short. Try another from a salvage yard. If fuse blows again, it's likely a wire to horn that lost insulation and touching metal.
Good luck.

Feb 01, 2012 | 1995 Ford Crown Victoria

1 Answer

Air intake noise when I turn it on.?

Describe the noise.Is it a hiss,like something isn't connected tightly?Or is it a horn sound? IF it's a horn sound,it could be coming from a component right at the rear of the engine. I replaced one on my boy's Crown Vic.It's hard to do without having some good selections of 1/4"drives or small wrenches.
That sound got so bad that people were getting mad at Justin because they thought he was sounding his horn at them.
I don't remember the name of the component,but it cost me 50 bucks at Auto-Zone. don-ohio (:^D

Nov 09, 2011 | 2000 Mercury Grand Marquis

2 Answers

01 crown vic. making horn noise replaced the egr and iac , cleaned amflow too , but still making horn noise. what to check next! ichanged everything that it could be what am i missing!

Hello Carter.

There is a revised snorkle for the air supply to the idle air control valve.
The design on yours would sometimes create this noise. Usually worse on cold starts.
A good parts guy at a Ford dealership should be able to find the updated part for you.

If you would like further assistance on this problem, ask me in a comment here.
Thank you for using FixYa.

Mar 18, 2011 | 2001 Ford Crown Victoria

1 Answer

My 1996 crown vic will not start motos turns over and trys to start but wont I have replaced intake manifold spark pulgs. motor has spark

basics,,,air,,fuel,,spark,,compression,,timing,,,pull a few plugs,,smell them for fuel,,if dry,,,take snorkel off throttle body,, open throttle body or flap half way,,spay a little starting fluid or injector spay into throttle put the snorkel back on see if motor fires up,,if so then ck fuel delivery & pressure,,,,hope it helped

May 28, 2010 | 1996 Ford Crown Victoria

1 Answer


This is caused by the IAC valve. Over time the valve becomes gummy and inoperative. Get it replaced and the problem is solved. IAC stands for idle air control, hence the stalling concern.

Oct 17, 2009 | 1999 Ford Crown Victoria

1 Answer

1994 crown vic air bag warning light blinks

it is a code,does the horn and cruise still work?chances are the clock spring wore out and broke,its behind the steering wheel and about $100.00 part at Ford

Apr 10, 2009 | 1994 Ford Crown Victoria

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