been to garage spent hundreds still same car cuts out when depressing clutch to change gear slowing at round abouts juntions etc had diagnostics done 40£ a time showing things repaired them still doing same any ideas please help

keith, May 2007

I had the same thing: towards the end of every winter I open the throttle body and use a rag to clean the filth off the metal butterfly valve and its housing.

works a charm.
Its a 15 min job.

Ahmad, July 2011

i have the same problem with the 18 16v vectra
any ideas on this...changed the air flow meter an had some injector cleaner ran threw the system

james, March 2011

keeps cuting out when l slow down our stop and turn the corner

geoff looms, May 2009

On the top of the crank case leading off the back left there are 2 breather tubes, the left hand one from the air-filter and the right hand one leads to under the Throttle body*, you'll need to remove the throttle body and clean up the metal butterfly and on the underside of this there is a very small breather hole (on the underside inside of the throttle body leading to the breather tube mentioned above *) these are notorious for getting blocked, when this is cleared out the car will idle like a dream. I've had the same problem and this has certainly worked for me

Peter Walters, January 2008

Clean the idle air control valve and all will be fine

Andy, May 2007

this is a common fault on the vectra i have the same problem myself, i have been told that it is the camshaft and the crankshaft sensors that need cleaning or even replacing i have cleaned the camshaft one so far and have yet to do the crankshaft sensor i have had a quote on the sensors and they are about £27 each to get hold of but there are many different types for this car. good luck it is a pain of a fault

john, May 2007