Hi guys.
I have searched all over the internet and this forum (as well as others) and i was hoping someone could really help me out with a problem i have.

I have just bought this car from a family friend. The car has been sitting on there drive for around 4 months and not being used very much.

The car idles slightly erratic at low revs and it feels like it wants to stall when pulling to junctions/roundabouts/lights etc..(but never does) There is a bubbling / gurgling sound coming from the engine bay which i think is to do with the aircon.

I had a mechanic check this out. He plugged in a diagnostic machine a no faults were registered. He thought that it might be the Idle control valve so he replaced that but it didnt change anything, so he put the old one back in.

I have just serviced it myself - changing plugs, oil and filter and air filter.

Also if i have the aircon on the car will not over idle, the gurgling sound kind of dissapears and the car doesn't feellike it will stalll.

Please help before i send it to the stealers.