Quote:
Originally Posted by Skettler
Got a bit of a weird one for you guys.
Couple of weeks ago my 2007 3.8 Started to run rough and then threw an engine code and light for cylinder 3 misfire.
Changed the plugs and the leads and all was great.
Turned the car on the other day and it feels like one cylinder is late firing every now and then. Wiggled the leads and it ran better but its back.
Driving down the highway it's alright, but every now and then it's surging. Hasn't thrown a code but I'm sure it's not far off.
Do you think it's heat soak?
I tried reseating all the leads and plugs this morning but nothing has really changed.
Could it maybe be a dying ignition coil pack?
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Is it always the same cylinder that is having the issue? Have you pulled the plug and had a look at the contact points?
I had a Landrover with a Holden 186 Red motor that developed a serious miss fire when it blew out most of the centre electrode.
Not saying this your issue, it was just something that I came across.