Beck TD has been running poorly lately. Quite a disappointment, because it had been running beautifully, and my recent work installing a new radiator has also worked out beautifully, with cool running no matter what the weather. The problem was a consistent "miss" that marred the driving experience in both normal traffic and when urging it along. Previously, the engine was willing to run all the way to the 6000 RPM redline, and now it was giving up the ghost at around 3500! Here's a video - listen to the exhaust note for the consistent miss.