Missfire until warm

[wongthecorrupter]

Since we have had a lot of cold and damp weather my tuscan as developed a missfire until the car has travelled 10 miles or so and the engine has a lot of heat through it, then it clears.Is this just a bit of moisture do you all think.The car has been out of my garage and on the drive for around 3 months. I have had it looked at at my local indie, plugged in to the diagnostic port and there are no issues.Has any body else had the same issues.Cheers

[coco79]

I had a similar problem a while back, turned out to be moisture ingress through the spark plug cover..

[Robertjp]

Are your throttle bodies difficult to balance or do they go out of balance quickly?

I had a cold misfire and it turned out to be air leakage from under the bolting flange on the throttle bodies. Once the engine got some heat the mating faces sealed.

Quite difficult to trace that one was!!

[wongthecorrupter]

cheers