1992 Chevrolet G Series Van (G20) Q&A

1992 Chevrolet G Series Van (G20) Question: 42,000 miles and has a rough idle it`s been sitting in a garage for 6 months.

it knocks on take off and smoothes out some on hte road but still knocks some -
Answer 1
did you change all the fluids??? spark plugs?? fuel filter??? is the check engine light on?? Roy -