1990 Full Size Chevy Van (20) - Rough Idle -
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1990 Full Size Chevy Van (20) - Rough Idle -

 
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bparker
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Posted: Sun Nov 13, 2005 9:14 am    Post subject: 1990 Full Size Chevy Van (20) - Rough Idle - Reply with quote

I have a full size 1990 - 20 GMC Van. It has a very rough idle but is
fine once cruising or accelerating. It is my belief that this is a result
of the engine's EGR Valve not working correctly and/or a blocked in-line
fuel filter (the gas tank sending unit and filter have recently been
changed).
If someone has had a similar experience or knows how to remedy this
condition I would be greatly appreciative of their help!
Thank you.

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