Truck sounds like a lawn mower nd the rpms are stuck goin up to 2 to 3000 on 1995 Chevrolet S10

Alright driving home last night went to put it in 3 rd gear so gave it a lil gas an it went an started sounding like a lawn mower and the rpms go up to 2 or 3000 on their own. Any ideas

by in Potwin, KS on March 28, 2013
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2 answers 1 comment
ANSWER by , March 28, 2013
get diagnostic run. probable ignition issue. review when last tuned. may just be due.
COMMENT by , March 28, 2013
Its in the engine though didnt think that the ignition would have anythin to do with it. Could it be the torque converter?
ANSWER by , March 28, 2013
poss vac leak causing high idle