how can I detect and repair loss of power in 1997 vectra 2.5 V6?
I came to an abrupt halt recently and on restarting the engine noticed the car wasn't running properly and sounded different. There is also a lack of power and engine revs are down too. Don't know if a cylinder isn't firing or some other problem. Have tried to check as many connections as is possible and accessable. Any clues?
Scot McGill, June 2008