Hi all

Well i recently installed a/c into my h22 swaped integra and having problems with vibration.

When coming to a stop with the a/c on the whole car/dash vibrates like mad. It only does this when at a stop (850rpm) and when the fan kicks on.

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Here are some key pointers

- only does it when fan is on and low rpm (below 1100)
- when fan turns off vibration stops
- Checked fan and works just fine (brand new slim fan)
- rev to around 1100rpm and vibration stops


Now i know i could fix this by adjusting my idel to 1100 or so but i really dont want to do that. My guess its doing this because of the stiff engine mounts and all... but was wondering why it only happens when the fan turns on. i cculd be at reg 850 idel, a/c on, fan turns off and viration goes away.

Anyone shead some light on this please?

 

bump for help