I'm going to hazzard a guess that its a sticking throttle body, an issue from long ago.


(I agree about putting it in neutral!!!)

 

Putting the car in neutral would have probably over-revved the engine as it would have a lot less resistance. The alternative would be to switch off the engine and coast to the side of the road, but I know from experience that the steering becomes incredibly stiff when the engine isn't running due to the resistance offered by the power steering fluid.

I would also say a sticky throttle body causing the revving.

 

Putting the car in neutral would have probably over-revved the engine as it would have a lot less resistance.

When it happened to mine the revs would "hold" themselves at the exact point where you took your foot off the throttle - and stay there.

 

i doubt it will be the throttle body if its violent enough to start ploughing into the back of cars.
also keep eyes on the coolant system, the coolant tank shouldnt just blow. could be as simple as a new cap or on the otherhand..... hgf.

 

Thanks for replies. I would hazard a guess that when she says "ploughing" into the back of cars she means "i nearly grazed a bumper". So does sound like maybe the throttle body. Not too dear a fix to try anyway by the sounds of it.

As for the coolant, it happened on Monday as well. Little or no water in system and pouring out the expansion cap. No sign of any water ingress in engine. Nothing obvious on dipstick or oil cap anyway. HGF went around 40K ago so hoping its not that again. Got a new cap today so try that first.

AA guy said fan fuse had blown but not sure if faulty fan caused it to blow but seems to be OK for now. Managed to get to work anyway.

Cheers

 

same thing happend to my 214 a week after i got it, i was reversing out my drive i then put it into 1st and the revs went straight up and i nearly crashed it into a parked car! I took it back to the garrage and they got it fixed as it was under warranty and they said it was the ecu causing it.

 

I don't believe that crap for one minute. I've never heard of the ECU causing the engine to over rev like that.
It was likely a sticking TB, but they wanted to sound technical and charge the warranty company a crap load of dosh for a simple fix.

 

Certainly sounds like a sticking tb,go with r44712 and check to see if the revs are held in the same spot....if so, a new tb would cure it.

 

Polterguised...

 

:happy: course mate, we believe ya! :gfight:

Whats having a budgie got to do with it?