car vibrates when a/c is on - Ford Mustang Forum
 
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post #1 of 13 (permalink) Old 11-28-2011 Thread Starter
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car vibrates when a/c is on

has any one else had this problem i can feel the whole car shake when i use my ac/heater or,when i roll up my windows its bugging the **** out of me .

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post #2 of 13 (permalink) Old 11-28-2011
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Mine does it too. It comes and goes sometimes, seemingly from tank to tank of fuel. It's the alternator/refrigerant compressor putting a slight load on the engine. Griped to Ford about it along with a long list of other crap when the car was new; got the usual "normal condition" BS.


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post #3 of 13 (permalink) Old 11-28-2011 Thread Starter
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it just started a few weeks ago well that blows
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post #4 of 13 (permalink) Old 11-28-2011
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You could try disconnecting the battery to clear out the ECM. It might just a hiccup or some bad gas. I've seen a few other auto trans equipped people on here griping about idling problems (in drive) here and there, some major, most minor. My manual trans car vibrated A LOT sitting at idle with the A/C on when it was brand new, but doesn't do it as often now.

2012 Kona Blue 3.7, M6, 101A, security package, built 5/3/11.
Mods: The list is long, like WRXified's winky used to be.

Other junk: 1994 Z28 conv LT1 A4 - 1965 Custom 2dr 390 M4 - 1962 Galaxie 4dr 427 A3 - 1979 Firebird Formula EV (work in progress) - 1967 Austin Healy Sprite (basket case)
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post #5 of 13 (permalink) Old 11-28-2011
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You may just need to have the car relearn its idle parameters. I think Ltngdrvr posted how to do it.
post #6 of 13 (permalink) Old 11-29-2011
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I can defiantely feel the AC compressor kick in (either ac or defrost) on mine but no issues with it off??

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post #7 of 13 (permalink) Old 11-29-2011
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Quote:
Originally Posted by joetucker View Post
has any one else had this problem i can feel the whole car shake when i use my ac/heater or,when i roll up my windows.
Quote:
Originally Posted by IbleedBlue View Post
Mine does it too. It comes and goes sometimes, seemingly from tank to tank of fuel. It's the alternator/refrigerant compressor putting a slight load on the engine.
Quote:
Originally Posted by Buck268 View Post
I can defiantely feel the AC compressor kick in (either ac or defrost) on mine but no issues with it off??
Hello members,

I recommend you make an appointment with your Ford dealer and have them check if its normal or not. Then, you can PM me with your VIN, mileage, contact info, and dealer so I can escalate this to the Customer Service Manager for your area if needed.

Deysha
post #8 of 13 (permalink) Old 11-29-2011 Thread Starter
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well it also does it after it warm in i drive a while then go to put it in park
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post #9 of 13 (permalink) Old 11-29-2011
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Try this first:
post #10 of 13 (permalink) Old 3 Weeks Ago
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Quote:
Originally Posted by joetucker View Post
has any one else had this problem i can feel the whole car shake when i use my ac/heater or,when i roll up my windows its bugging the **** out of me .


I have this same exact issue and it is sooo annoying. It sounds bad on the engine/car.
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post #11 of 13 (permalink) Old 3 Weeks Ago
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Quote:
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I can defiantely feel the AC compressor kick in (either ac or defrost) on mine but no issues with it off??
I am having this same issue. These cars are almost 10 years old now. If you guys have had these cars since brand new and they do this and since have had no major issues. I am starting to think it may be nothing to worry about. My car I bought in 2016 which is a 2011 v6 is doing this.
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post #12 of 13 (permalink) Old 3 Weeks Ago
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Quote:
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well it also does it after it warm in i drive a while then go to put it in park
My car sometimes does this same thing!
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post #13 of 13 (permalink) Old 2 Weeks Ago
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Mine vibrates horribly when I shift into park or reverse, and there'll be intermittent vibrating when I'm idling. I get no codes, replaced the spark plugs-- it almost feels like a misfire, even though start up, acceleration, and shifting in drive feels normal.
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