why does my engine shake and I hav slight loss of power on 1994 Suzuki Sidekick

I thought maybe miss fire but I did a complete tune up. but engine is still shaking.

by in Potwin, KS on December 30, 2013
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2 answers 2 comments
ANSWER by , December 30, 2013
try doing a compression test to see if you have a bad cyl ,also check your fuel pressure
COMMENT by , January 01, 2014
how do I check fuel pressure and for vacume issues
ANSWER by , December 31, 2013
poss head gasket issue,did you overheat by any chance?
COMMENT by , January 01, 2014
no over heating. engine and timing strong seams like a vacume line but I cant tell