Ford Mondeo ignition

[theshedman]

Hi all, my Mondeo has started being a bit jumpy until it has warmed up then it runs fine. The plugs have not been changed but when I looked at them they were a light brown colour which the book says mean they are ok. Anyone got any ideas what it could be or will it be worth changing the plugs just to see. Thanks Shed.

[AlBags]

More likely to be the plug leads.
If they have not been changed in last 10-15K miles, get a set. Zetecs eat leads.

[theshedman]

Hi AlBags, thanks for the answer will give it a try.

[AlBags]

One way to test the leads is at night (pitch black) with the bonnet up and engine ticking over. Hand sprayer .. Mist some fine spray of water around the leads. If you see them arcing and cracking to engine earth, they are getting dodgy.