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Originally Posted by 57chevyragtop
Jeffcoslacker is right you need to be able to describe it a little better still. first what year, which engine ? 3.1, 3.8, 3.4? TCC (torque Converter Control solenoid) will only give a problem when car is warmed up at least 20 minutes running, and then only when you slow from 45 and above, the engine will buck and stutter and may stall when coming to a 20mph and below stop. First thing I would look at is the tranny fluid level, after engine warmed thoroughly, may be low, add dextron III (very little at a time so as not to overfill) if not low, check color of fluid as well, if red its ok, if brown or very dk red, Tranny fluid & filter may need changed, Next, check your air filter and box to be sure it's clean, clean clean, next step is the thottle body, take air inlet from air cleaner off, spray w/WD40 and clean out horn and butterfly not letting any dirt go in towards engine, do not use carb cleaner it destroys the coating, clean both sides of the butterfly using paper towels and fingers, no screwdrivers that can scratch the surface. popsicle stick or like is ok. Now if you still have the problem you may need to get the cat converter checked, that may be plugged up (you can't do this yourself) The only other thing I can think of is the fuel filter may need changed, this is the most neglected part on cars today, very difficult to change if you don't know how or have the tools, even if you do it can be a bear.
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