Vauxhall Astra high revs

Try cleaning throttle body .

sorry but what does that mean and how do i do it?

i have a ford focus and recently i had high revs and car wasnt picking up speed and that was my clutch when i gt that fixed the car was sorted

If the clutch was slipping you should get the symptoms in all gears when under load .Ie engine revs up and loses power . Does it do this all the time or was it a one off at that speed ? This link gives you an idea whats invoved in cleaning throttle body if sticking . You can get a throttle spray at any good accessory shop/ store for a couple of quid . A simple job to clean butterfly etc .It may not be that but worth a try .There are other possible causes like the throttle position sensor for example but try cleaning throttle body first .


http://www.astraownersclub.com/documents/technical/TB.pdf

ok thanks ill have a look. Its only done it twice but last night i stopped at a junction and then car wouldnt take off again for a bit then moved off after a while as though nothing had happened. its bizarre.