My van runs rough while in gear and sputters when accelerating, but idles fine in park. It has a 5.0 V-8 and 4 speed transmission. Any idea what could be going on?


Asked by Apr 16, 2015 at 05:53 PM about the 1990 Chevrolet Sportvan 3 Dr G20 Beauville Passenger Van Extended

Question type: Maintenance & Repair

1984 is the year it wouldn't let me
select that old below

6 Answers


Check the spark plug wire, and plug,s,then check the distributor cap and button.


If that was what's going on wouldn't it idle rough too?

1 of 1 people found this helpful.

No,if plug is fouled it will fire,just not at high rpm,s.


What about maybe the floats? If the carb was out of tune would it do the same?


It also idles rough at a stop while in gear but not park

1 of 1 people found this helpful.

Check the plug,s and your wire,s.

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