I have a 2002 Freelander SE V6 2,5L with 65k miles and the same problem. On cold starts sometimes the Check Engine Soon light comes on and there is very little power. The codes says misfire on the 5th cylinder. I had the intake manifold changed (at the dealer's advice) and two mornings later the same thing happened again. I notice when the engine is cold (and the Check Engine light does not come on) the motor runs rough. Once warm it sounds perfect. We checked the PVC valves and one was leaking so we replaced it. We are still looking into the problem of the misfire on the 5th cylinder. One member of this community suggested the head gaskets. He says they like to leak. Antifreeze gets into the cylinder and upon start up you get either a rough start or check engine. Once burnt off, engine runs fine. Any comments, please post!
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