Lately Ive noticed what I thought was a mis in the engine. The hotter it was outside the more it happened ( 100 degrees lately ) so I turned off the AC and it stopped. Apparently when the compressor kicks on it feel like a misfire, and since it was so hot out it was doing it quite often, Is this normal for the fit or does the AC need charging or something? Its cold but may not be as cold as it should be, being so hot out cant really tell but it does cool, just takes longer.

I don't know if the compressor is the issue, low Freon or what, just seeking advice and experience on this issue, as I know the motors are small and not as powerful as the V8's so is this normal or no?
Thanks everyone.

 

Everyone's car (even same model) is a little different, I feeling subtle wave of vibration when a/c compressor kicks in during cycle; also the car tends to vibrate more when a/c is on. I using second fan speed; with this setting and re-circ mode the a/c compressor cycles every 25 to 30 seconds. My a/c is about 80% charged. Most of the vibration is felt on drive'rs door armrest.
In old 10-piston compressors (used 25 years ago on Toyota's) low charge causes oil to condense in piston chambers creating "out of round" engine feel during a/c start up.
Our Fit uses spiral type compressor so in theory this event should not be that pronounced.
When my coil died a miss was significant enough with a/c on to drop the idle RPM and shake entire car in drive

 

That's what I'm getting, the whole car shimmys every 20-30 seconds, sometimes more but only during stops or sitting.... I don't feel or notice it while driving. There is no noises or squeals or anything, just the shake when it kicks in .... no drop in rpm as I was watching the needle for any fluctuations when I seen none I turned off the ac and it stopped. I use it on recirculating max ac. So, I guess its a normal thing with the fits?

 

I could speculate that this vibration related to the right side hydrostatic motor mount. The fluid chamber "pancakes" when getting older and there is a rubber layer on the mount right under engine bracket. When mount collapses about 1/16", a bracket begins to rest right on this rubber layer, which hardens with age, so operating A/C somehow causes more vibrations to be transmitted to the frame.
This is just a theory

 

What you are describing is commonly reported across 1st and 2nd gen Fits. My 2012 does it too, always has, it's just when the A/C compressor cycles on and off. Happens in Defrost modes as well any non-Defrost modes if the A/C button is turned on. I too have wondered about any drop in RPMs but I have watched the tach and it looks steady to me.

 

Ill check out any rubber mounts I can get to once it cools down a bit, been a long hot week at camp with all the Scouts this past weeks...and I'm beat for now.

 

Sounds good. I'm pretty confident that it's normal but I'm curious to see what you find out.