I have a 1994 s-10 4.3 vortec 86000 mi. which misses most noticeable at cruising speed. At first I thought it was a transmission slip and I had that checked and the shop (Aamco) said the trans. was o.k. but I had the fluid and filter changed anyway . They thought it was a carbon problem , so I had the induction system cleaned. Still hasn't solved the problem....It still may be carbon.It seems to run well at idle,and tune ups are up to date . I had the fuel filter reciently changed .The fuel line had to be cut to replace the filter and I'm wondering if rust could have gotten in the line ? Thanks Blazer2112:banghead:

Sometimes problems arising from acceleration can be due to a bad coil.

Sometimes problems arising from acceleration can be due to a bad coil.


Thanks for the reply, I'll check that out.

even though you are recent on your tuneup, pop the dist. cap off and make sure there is no moisture built up in the cap. thats a common problem with that engine.
start the engine at night with the hood up and watch for sparking arround the wires and coil.
someething else to check out