Today i decided i would have a go at the auto diagnostic to see if it showed any probs, but alas i didn't get as far as that because whilst warming the engine up i noticed that it was sticking on high idle which i didnt think was too bad as it is bloody freezing, anyway after 5-10 mins i got in the car to rev it a little and thats where me problems began, as soon as i dabbed the accelerator revs dropped to almost nothing then climbed to about 2500 and then took a good few seconds to drop to 1200! Tried this a couple of times with exact same results, so i turned her off and went to inspect. There was white smoke drifting up from the bottom of the engine bay which stopped after a few seconds, but there is now a growing puddle of green fluid dripping out somewhere on the drivers side. Now the only green fluid that i know i have put in is Washer fluid has anyone had these leak?

 

Any help muchos appreciated :D

 

Pete

You got a like a coolant leak from the sounds of it, see if you can see where it's coming from.

 

The rev anomalies could be from air bubbles getting in the coolant system and affecting the the ECU temp sensor signal? This can cause stumbling revs when the throttle is pressed, and high revs at idle. Or a dodgy connection on the temperature sensor itself - can you hear a loud electrical fan noise from the engine bay?

 

Pete

The dip in revs I would lay money on will be the temp sensor. Either the sensor itself or the wiring to it. (as Pete said!)