May run fine when cold until warm up then misses. Then miss may quit and run fine. Some days won't miss at all and some days the miss won't go away. When accelerated it seems to run fine - after de-accelerating to normal driving a bit the miss comes back.
Engine miss that comes and goes on 1994 Dodge Ram 2500
by kwcarle in Kansas City, KS on February 15, 2013
ANSWER by Sci-Tech on April 18, 2013
There are a variety of things that can cause the symptoms you describe. One common problem that can be intermittent and temperature sensitive is a leaking intake gasket. You need professional diagnosis to pinpoint the cause of the problems.