Last night I went out in the car for the first time this week, so the car's been sat for a few days in the cold. Because it was icy I used the ice/snow button on the auto box to get up the hill, but noticed it was miss-firing.
This has happened on a couple of occasions before when starting from cold but it's been successfully rectified by switching the engine off and restarting each time. This time however, the problem seems to be a bit more persistent.
On the way to work this morning it was miss-firing so I pulled over, switched off and restarted, which did the trick for a while until I came to some lights and had to stop.
While idling in 'drive', it started miss-firing again and now seems to do it whenever there's some moderate load on the engine.
Tick-over and revving while in Neutral is fine (unless I really boot it hard...then it miss-fires again).
So basically it's miss-firing under load. What should I check first? I know plugs are an obvious but is there anything else I should look at while I'm there?
2002 3.2 MV6 Auto.
Cheers guys
Neil
