Hi,
I'm having a slight problem with my 91 200TQ and wanted to find out if anyone else has experienced it, or know what I should look at next. Very sporadically, the car is giving me a stutter while I'm driving. It doesn't happen consistantly, so I can't duplicate it on demand. It will happen in every gear, with the lower gears being much more pronounced that the higher, and it will happen when I'm accelerating, or cruising. I can't think of anyway to effectively explain it, so the best I can do is give similarities. It's sort of like when your arm and foot aren't quite in sync and you shift poorly; it's kind of like when you're in too high of a gear for the speed you're going; it's kind of like the engine misses a few beats while you're driving along. From what I have been able to figure out, it seems to happen in the low to mid 2000rpm range. With the exception of when it does it when I'm starting to go, my foot is off the clutch (when I'm starting to go and it does it, the stutter is pretty big, just like a new-to-a-standard-tranny driver {I've been driving standards for over 15 years btw}).
Now for what has all ready been tried. The fuel pump is around 1 1/2 years old, the fuel filter is around 2 months old, the timing belt was changed a couple weeks ago, and it was tuned up last week. It has been doing this very sporadically for quite some time now, probably around a year. We had a rainy spell a few weeks ago in New Hampshire, and it seemed to be happening a lot more often then. The next thing I'm going to try is a fuel system cleaner, thinking it may be the injectors.
Any other thoughts of what could be causing this? Any ideas of what to try if the fuel cleaner doesn't work?
TIA and Enjoy Bill