My wife's car is doing the same thing as you described. We've had various cylinders replaced, #2, #4 each at different times because the problem was the same each time. It goes along for about 10000 miles and its back again. Its driving me crazy. And what does the service department tell us. It's just something with "these" cars. Aaarrrrggghhh.
Also, the passenger airbag warning came on and the service tech said something must be stuck underneath the seat. Well, after checking and finding nothing he said "all these cars do that at some point".
This is a truly gorgeous car even at seven years old. BTW only 73000 miles.
I'll check back here from time to time as whatever solves your problem most certainly will solve mine.
Wednesday, March 28th, 2007 AT 4:10 PM