My Freelander 2 2.2 TD4 (99k miles, 1997 model) started misfiring badly and constantly on the way to work on Wednesday morning. I had to call the AA, and the guy spent quite a while trying to diagnose the problem (nothing obvious on the diagnostics and it didn't go into engine management mode). He said it would need more detailed investigation and towed me to my regular garage.
They've had in in the workshop ever since and haven't managed to solve the problem. They took off the intake manifold and found a "flap valve" had broken. Having googled this I think it must me a "swirl valve"? Anyway they replaced the whole intake manifold (since this valve was obviously broken) and checked the cylinder valves on that chamber (in case any bits of the broken valve had been sucked in I guess) and said that the valve seem to be seating okay. But this has not fixed the problem and they are a bit stumped to be honest.
Any suggestions? This is getting worrying.
They've had in in the workshop ever since and haven't managed to solve the problem. They took off the intake manifold and found a "flap valve" had broken. Having googled this I think it must me a "swirl valve"? Anyway they replaced the whole intake manifold (since this valve was obviously broken) and checked the cylinder valves on that chamber (in case any bits of the broken valve had been sucked in I guess) and said that the valve seem to be seating okay. But this has not fixed the problem and they are a bit stumped to be honest.
Any suggestions? This is getting worrying.