Hey All,

2001 V70-T5M, just had the timing belt done two days ago by an indy shop I trust. I put 100 miles on the car and now cylinder 5 is misfiring. My internet at home is screwy so I have to run into the office once in a while to look things up.

I am getting spark from the coil, but I haven't tried to switch coils between two plugs to see if it moves to the other cylinder, I'll do that in a few when I get home again. I did replace the plug with a cheapo one to see if that was the problem, but the one I pulled out looked pretty good (OEM volvo plug) and the problem has not gone away with the new plug. The only code is the 305 for the cylinder misfire. It seems to be sparking at least a little in the chamber, cause when the coils comes off there's a noticeable drop in rpm. Rough running through the entire rpm range.

Going now to get some fuel system cleaner because I think even if it is a fouled injector, some fuel is getting by. Will also switch the coils to see if that's a problem as well. Any other ideas?

Car has 104,500 miles, had a full 90k service. I had the t-belt and front brakes replaced.

Thanks!
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'86 245, 188k, '00 V70 98k