whats up fellas. while i was changing the distributor cap on my 95 4.3 i noticed a few disturbing things under the plenum cover. first, there was a small amount of gas pooled on the drivers side of the intake manifold. second, there was a small amount of oil pooled on the passenger side, and there was a good amount of carbon buildup on the lines. ive been having trouble with rough idle and operation for a while now, with no luck in fixing it. anybody got input? running out of ideas, but this latest find looks promising, lucky me, huh?! 95jblaze

 

Fuel in the LIM on the driver side is caused by leaking feed/return lines.

Oil on the passenger side could be caused by oil leaking past the retaining bolts. It is also possible that the PVC valve has gone bad and is pulling crankcase fumes w/ entrapped oil into the intake and that it is collecting in the LIM.